ЕМКОСТНАЯ ИЗМЕРИТЕЛЬНАЯ СИСТЕМА С ДИФФЕРЕНЦИАЛЬНЫМИ ПАРАМИ

Изобретение относится к измерительной технике, а именно к емкостному датчику для измерения расстояния, в частности, до мишени в литографическом устройстве. Сущность: емкостная измерительная система содержит два или более емкостных датчиков (30a, 30b), один или более источников (306a, 306b) питания переменного тока для подачи питания на емкостные датчики и схему обработки сигналов для обработки сигналов от датчиков. Датчики скомпонованы попарно. Один или более источников питания переменного тока выполнены с возможностью запитывать первый датчик из пары датчиков переменным током (307) или напряжением со сдвигом фаз 180 градусов относительно тока или напряжения для второго датчика из пары датчиков. Схема обработки сигналов выполнена с возможностью обработки принятых выходных сигналов для генерации единого измеренного значения расстояния, соответствующего среднему расстоянию между измерительным блоком и мишенью. Схема обработки сигналов выполнена с возможностью генерации результата дифференциального ...

АВТОМАТИЗИРОВАННОЕ УСТРОЙСТВО С ПОДВИЖНОЙ КОНСТРУКЦИЕЙ, В ЧАСТНОСТИ РОБОТ

Изобретение относится к роботу. Робот содержит подвижную конструкцию, приводные средства для обеспечения перемещений подвижной конструкции, систему управления, содержащую блок управления и выполненную с возможностью управления приводными средствами, и сенсорное покрытие. Сенсорное покрытие покрывает подвижную конструкцию и включает сенсорные средства. Сенсорное покрытие содержит множество покрывающих модулей, каждый из которых имеет соответствующую несущую конструкцию заданной формы, с которой связан слой упруго-деформируемого материала. Множество покрывающих модулей содержит сенсорные покрывающие модули, содержащие сенсорные средства. Несущая конструкция покрывающих модулей имеет связанные с ней электрические соединительные средства, выполненные с возможностью разъемным образом обеспечить электрическое соединение между двумя различными покрывающими модулями, расположенными смежно друг к другу. В результате обеспечивается высокая степень взаимодействия между устройством и оператором и соблюдаются ...

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ

Изобретение относится к измерительной технике, в частности к измерению расстояний до поверхности металлических поверхностей. Устройство содержит цилиндрический сердечник, имеющий продольную ось; три диска или фланца, установленные на продольной оси сердечника; катушки из провода, расположенные вокруг продольной оси сердечника между всеми смежными парами дисков или фланцев, содержащие первую катушку между первой парой дисков или фланцев и вторую катушку между второй парой дисков или фланцев. Причем провод каждой катушки содержит проводящий металл, главным образом, с диэлектрическим оксидным или керамическим покрытием. При этом диски или фланцы изготовлены из не полимерного материала, а сердечник и диски или фланцы выполнены взаимно закрепленными в пространственном отношении. Устройство выполнено с возможностью определения расстояния до металлического объекта, находящегося вне устройства. Технический результат заключается в возможности использовать устройство при очень высоких температурах ...

Роботизированный комплекс для определения отклонения от вертикального положения внешних экранов реактора дегидрирования пропана

Настоящее изобретение относится к комплексам для определения положения внешнего экрана реактора дегидрирования пропана. Роботизированный комплекс для определения отклонения от вертикального положения внешних экранов реакторов дегидрирования пропана содержит механизм для линейного перемещения отвеса, отвес, при этом механизм для линейного перемещения отвеса оснащен устройством измерения линейных перемещений и содержит электронное вычислительное устройство, выполненное с возможностью получения данных с устройства измерения линейных перемещений в момент разрыва цепи между отвесом и стенкой внешнего экрана и их объединения в базу данных, а от механизма для линейного перемещения отвеса реализован контакт с поверхностью стенки внешнего экрана, образующий электрическую цепь между этим контактом и отвесом. Технический результат - исключение рисков для жизни и здоровья человека, ускорение процесса измерения и увеличение точности измерений за счет определения положения внешних экранов реакторов дегидрирования ...

Codierte, elektromagnetisch basierte Fahrhöhenerfassung

Verschiedene Ausführungsformen der vorliegenden Offenbarung bieten ein Fahrhöhenerfassungssystem, das eine codierte elektromagnetische Quelle als eine Eingangseinheit für einen Hall-Effekt-Sensor umfasst, wobei das Signal vom Elektromagneten codiert ist, um das Abweisen des Umgebungsmagnetfelds zu ermöglichen. In verschiedenen Ausführungsformen der vorliegenden Offenbarung wird ein Bandpassfilter zur Signalverarbeitung der codierten elektromagnetischen Daten verwendet. Zusätzlich können mehrere Hall-Effekt-Sensoren mit einer einzelnen elektromagnetischen Quelle verwendet werden, um mehrachsige Erfassung bereitzustellen, was daher Robustheit beim Bestimmen von Fahrhöhenänderungen bietet, oder im Fall von abhängigen Aufhängungen (Starrachse) kann eine einzelne elektromagnetische Quelle verwendet werden, um Fahrhöhe an mehreren Stellen an der Achse zu bestimmen.

Schnell ansprechendes kapazitives Messsystem mit Diskriminierungsschaltung mit steilflankigem Filter

Kapazitives Messsystem zum Messen der Höhe eines Laserkopfes über einem Kunststoffwerkstück, wobei das System umfasst: eine Laserkopf-Düse, die eine erste Platte eines Kondensators bildet; wobei das Kunststoffwerkstück einen dielektrischen Abschnitt des Kondensators bildet; einen auf Kapazitätsänderungen ansprechenden Hochfrequenzoszillator, der mit dem Kondensator betriebsfähig gekoppelt ist, wobei der Oszillator einen Ausgang liefert; und ein Bypassfilter hoher Ordnung zum Verarbeiten des Ausgangs von dem Oszillator, um Änderungen der Kapazität des Kondensators zu messen.

VERFAHREN UND GERÄT ZUR MESSUNG VON GRÖSSEN BEZÜGLICH ELEKTRISCH LEITENDER MATERIALIEN.

Proximity detector with exciter for vibrating system - has decoder system responding to amplitudes of oscillation

The exciter device (1, 2, 3; 14) acts on the vibrating system (4, 5; 15) influenced by the object at exciting intervals whose periods are greater than the duration of the dying-out process, given by a lower limiting amplitude value, of the system vibrating solely under the influence of inherent damping. A counting device (6, 9, 10; 17 to 26) detects the number of periods of oscillation of the dying-out process damped by the object within each exciting interval and becomes effective between two given limiting amplitude values. The vibrating system can be an electrical LC resonant circuit.

Sensoranordnung und Verfahren zum Erfassen von Eigenschaften der Oberflächenschicht eines metallischen Targets

Handwerkzeugmaschinenvorrichtung und Verfahren zum Betrieb einer Handwerkzeugmaschinenvorrichtung

Die Erfindung geht aus von einer elektrischen Handwerkzeugmaschinenvorrichtung (10, 10’), insbesondere einer kabelgebundenen Handwerkzeugmaschinenvorrichtung (10, 10’), mit beweglichem Werkzeug (14, 14’), insbesondere einem Schneid- oder Sägewerkzeug. Erfindungsgemäß weist die elektrische Handwerkzeugmaschinenvorrichtung (10, 10’) eine Schutzvorrichtung (48) zur Erkennung eines stromführenden Kabels (38) in einem Gefahrenbereich (34) der Handwerkzeugmaschinenvorrichtung (10, 10’) auf, die zumindest einen Magnetfeldsensor (44) umfasst, der dazu vorgesehen ist, ein elektromagnetisches Wechselfeld in dem Gefahrenbereich (34) zu detektieren.

NAEHERUNGSSONDENSTROMKREIS

KAPAZITIVE ABSTANDSMESSEINRICHTUNG

Induktiver Sensor für thermische Bearbeitungsmaschinen

Die Erfindung betrifft einen induktiven Sensor für thermische Bearbeitungsmaschinen, insbesondere für Brennschneidmaschinen, zur induktiven Messung des Arbeitsabstandes eines Plasma-, Autogen- oder Laser-Werkzeugs von einem Werkstück (5). DOLLAR A Erfindungsgemäß wird dadurch, daß der induktive Sensor (1) aus einem durch mindestens eine Koaxialleitung (3) mit einer elektronischen Schaltung (4) geschalteten Sensorring (2) besteht, ein einfaches und kostengünstiges Meßgerät zur induktiven Werkzeug-Werkstück-Abstgandsmessung für Brennschneidmaschinen mit Plasma-, Autogen- oder Laser-Werkzeug zur Verfügung gestellt.

DIGITALES WIRBELSTROM GRENZTASTSYSTEM;APPARAT UND VERFAHREN

Kapazitiver Abstandssensor

Die Erfindung betrifft einen kapazitiven Abstandssensor (2). Der Abstandssensor (2) umfasst ein Sensorelement (4), mit einer elektrisch leitenden, langgestreckten, flachen Sensorfläche (16), die wiederum eine Anzahl von Löchern (18) enthält. Die Sensorfläche (16) ist von einem elektrisch nichtleitenden Isolierkörper (14) vollständig umschlossen, so dass der Isolierkörper (14) die Randbereiche (22) der Löcher (18) vollständig überdeckt. Das Sensorelement (4) wird insbesondere hergestellt, indem in die Sensorfläche (16) zunächst die Löcher (18) eingebracht werden. In einem darauffolgenden Arbeitsschritt wird die Sensorfläche (16) von dem Isolierkörper (14) vollständig umhüllt, der auch die Löcher (18) der Sensorfläche (16) vollständig ausfüllt.

CONTINUOUSLY MEASURING DISTANCE UTILIZING EDDY CURRENT

Turbomachine having an apparatus to measure the clearance between a rotor blade tip and a stator liner of a stator casing

NON-CONTACT INDUCTIVE DISTANCE MEASURING SYSTEM

High temperature speed or proximity sensor

PROCEDURE AND MECHANISM FOR DETERMINING THE DISTANCE BETWEEN A SENSOR ELECTRODE AND A WORKPIECE

Messen von Positionen, mechanischen Verschiebungen und Rotationen von Körpern

Die Erfindung betrifft eine Vorrichtung und eine Verfahren zum Messen der relativen Position und den Winkeln zwischen zwei zu messenden Körpern (7, 77). Die Erfindung ist dadurch gekennzeichnet, dass sie einem oder mehreren Permanentmagneten (6), aufweist und dass die zu messende Position indirekt über ein Magnetfeld bestimmt wird. Das Magnetfeld wird durch einen oder mehrere Magnetfeldsensoren (3) detektiert, der mit einem Mikrochip ausgelesen wird. Um auf die Position und den Winkel des Permanentmagnetsystems (6) in Relation zu den Magnetfeldsensoren (3) rückzurechnen wird eine mathematische Minimierungsmethode verwendet. Die Energie die für das Auslesen der Sensoren benötigt wird, kann durch das Anregefeld eines Auslesegeräts bezogen werden. Der Sensor kann ohne Energieversorgung auskommen und kann mittels Standardauslesegeräte, wie Beispielsweise eines NFC fähiges mobiltelefon ausgelesen werden.

IN THE FORM FLEXIBLE SURFACE FOR AN AUDIO CONNECTION

DIGITAL EDDY CURRENT BORDERING BRANCH SYSTEM; APPARATUS AND PROCEDURE

INDUCTIVE SENSOR ARRANGEMENT AND MEASURING INSTRUMENT FOR USE THE SAME.

ELECTRONIC CAPACITIVE ONES SENSOR SEAWEED MECHANISM

MEASURING INSTRUMENT WITH A CAPACITIVE TEST ELECTRODE AND WORKING ON TOOL WITH INTEGRATED ELECTRODE.

CAPACITIVE DISTANCE RANGE FINDER, IN PARTICULAR FOR HIGH TEMPERATURES.

ANALYTICAL DEVICE WITH AUTOMATIC ADJUSTMENT OF THE TRANSPORT EQUIPMENT OF THE PIPETTING NEEDLE

LINEAR PROBE FOR AXIAL MOVEMENT

CAPACITIVE GAUGING SYSTEM

A capacitive gauging apparatus in which a single central processing unit is connected to a plurality of gauging heads each gauging head having a further plurality of gauging probes. The system then multiplexes the probes and heads to enable the central processing unit to receive serially the output from each of the heads and produce and analog or digital signal which indicates distance between each of the probes and the work piece. A central microprocessor transforms these signals into an output for visual display or calculates the difference between these signals and ideal master work piece. Further, a highly temperature stable, low capacitance, high impedance amplifier is used in conjuction with each of the probes so that the output signal from each of the probes is stable and accurate over a wide range of conditions.

SYSTEM FOR MEASURING GAP SPACING

EDDY CURRENT JOINT SENSOR

A joint sensing system within an enclosure can include an electrical circuit through which a first current flows, where the first current creates a magnetic field, where the electrical circuit is disposed proximate to a joint of the enclosure. The system can also include a target disposed proximate to the electrical circuit, where the magnetic field induces a plurality of second currents to flow within the target. The system can further include a sensor that measures the plurality of second currents flowing within the target to generate a plurality of measurements. The plurality of measurements can indicate a width of the joint of the enclosure.

HIGH TEMPERATURE SPEED SENSOR

A gas turbine shaft speed sensor including a sensing coil comprised of a central conducting wire, the sensor and conducting wire is surrounded by a layer of mineral insulator and the mineral insulator is surrounded by a metallic, non magnetic, sheath. A sensing coil formed with this construction allows th e high operating temperatures and is robust.

GAP SENSOR AND GAP MEASURING METHOD

A probe (2) is a three-layer substrate having two faces on which paired electrodes (E1, E2) are formed at corresponding positions and guard patterns (Ge) are formed around the electrodes. The guard patterns and all electrodes are driven by a common probe signal (Vp) to an equal potential, thereby commonly guarding the electrodes. Based on a clamp current of each electrode, a capacitance is found to obtain gap data.

DISTANCE MEASUREMENT SYSTEM AND DISTANCE MEASUREMENT METHOD

The distance measurement system according to the present invention is provided with a reference member as a reference for distance measurement provided on a surface of a metal first pipe, an attachment member provided on a surface of a metal second pipe connected to the first pipe via a weld, a distance sensor attached to the attachment member for measuring the distance to the reference member, and a measurement unit for measuring the distance on the basis of an output from the distance sensor.

SYSTEMS AND METHODS FOR SUBSURFACE OIL RECOVERY OPTIMIZATION

Systems and methods for subsurface secondary and/or tertiary oil recovery optimization based on either a short term, medium term or long term optimization analysis of selected zones, wells, patterns/clusters and/or fields.

Verfahren zur kontaktlosen Messung des Abstandes eines Gegenstandes und Vorrichtung zur Durchführung dieses Verfahrens

Jauge fonctionnant par mesure de capacitance

Verfahren zur berührungslosen Messung von Nahtfugenbreite und Nahtfugenmitte sowie zur Steuerung der Schweissparameter und zur Nachführung des Schweisskopfes

Längen-Messeinrichtung, insbesondere zum Abgleich von Werkstücken

Elektronisches, berührungslos arbeitendes Schaltgerät

Elektronisches, berührungslos arbeitendes Schaltgerät

Elektronischer, berührungslos arbeitender Abstandsindikator

Berührungsfreier elektrischer Abstandsmessgeber

Elektrische Maschine mit einer Einrichtung zur Überwachung des Luftspaltes

CAPACITIVE SENSOR FOR MEASURING SMALL OF DISTANCES.

INDUCTIVE PROXIMITY SENSOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL TO THE DISTANCE.

Arrangement for compensating disturbing radiation of electromagnetic radio-frequency oscillations in contactless scanning devices

The invention relates to a compensating arrangement for contactless scanning and control devices, in which a radio-frequency measuring field exists between a sensor electrode (7) and a mating electrode (1). In this case, a second radiating electrode (8) generates a compensation field with a reverse phase angle and the same effective radiation of energy. When compared with the wavelength of the radio frequency, the compensation field is generated in this case near the measurement field between the sensor electrode (7) and mating electrode (1), being so close that the radiation of energy from the compensation field and measuring field approximately compensate one another. ...

Contact spacing regulator - made of permeable magnet and two hall generators

Contact sensor device for measuring and regulating the distance between a sensor body (1) and object (3) consists of moveable probe element (4, 5, 6) fitted to the body (1) which is brought into contact with the object (3). A permanent magnet (10) attached to the probe element and a differential Hall generator (11, 12) fitted to the body (1) interreact to provide a signal which is fed to a regulator having a position drive. USE/ADVANTAGE - Maintaining a fixed distance between a tool such as a lasercutter and a workpiece. The position is regulated until the magnet is midway between the Hall generators and no direct voltage signal is sent to the position regulator. The sensing device is less complicated and less costly than the prior art HF circuit device.

PROCESSING CIRCUIT A SIGNAL PSEUDO OSCILLATORY, ESPECIALLY FOR INDUCTIVE PROXIMITY SENSOR.

Sensor arrangement for rotary devices and system for monitoring operation of such a device

Die Erfindung betrifft eine Sensoranordnung (40) und ein System zum Überwachen eines Betriebs einer Einrichtung, welche die Sensoranordnung (40) verwendet. Die Sensoranordnung (40) weist ein Gehäuse (56), das eine Innenfläche (72) beinhaltet, die einen Hohlraum (74) innerhalb des Gehäuses definiert, und einen Näherungssensor auf, der in dem Hohlraum (74) angeordnet ist. Der Näherungssensor weist einen ersten Anschluss (80), einen zweiten Anschluss (82) und eine im Wesentlichen ebene Erfassungsspule (84) auf, die sich zwischen dem ersten Anschluss (80) und dem zweiten Anschluss (82) erstreckt. Die Erfassungsspule (84) erstreckt sich von dem ersten Anschluss (80) derart nach aussen, dass der zweite Anschluss (82) bezüglich der Ausdehnung der ebenen Erfassungsspule (84) radial ausserhalb von dem ersten Anschluss (80) liegt. Die Erfassungsspule (84) umfasst ein temperaturbeständiges Substratmaterial (104) aus Titan und/oder einer Superlegierung. Das System beinhaltet eine Sensoranordnung wie ...

Sensor arrangement for turning mechanisms and procedure for the production.

Die Erfindung betrifft eine Sensoranordnung (40) und ein System zum Überwachen des Betriebs einer Einrichtung, welche die Sensoranordnung (40) verwendet, wird hier beschrieben. Die Sensoranordnung (40) weist ein Gehäuse (56), das eine Innenfläche (72) beinhaltet, die einen Hohlraum (74) innerhalb des Gehäuses definiert, und einen Näherungssensor auf, der in dem Hohlraum (74) angeordnet ist. Der Näherungssensor weist einen ersten Anschluss (80), einen zweiten Anschluss (82) und eine im Wesentlichen ebene Erfassungsspule (84) auf, die sich zwischen dem ersten Anschluss (80) und dem zweiten Anschluss (82) erstreckt. Die Erfassungsspule (84) erstreckt sich von dem ersten Anschluss (80) derart nach aussen, dass der zweite Anschluss (82) radial ausserhalb von dem ersten Anschluss (80) liegt. Das System beinhaltet eine Sensoranordnung wie oben beschrieben und eine Recheneinrichtung.

Procedure and measuring device for the determination of the length of an electrode.

SWITCHING CONFIGURATION FOR THE PRODUCTION OF DISTANCE OF AN OBJECT OF A SIGNAL DEPENDENT ON A HIGH FREQUENCY EXCITED MEASURING COIL.

Magnetic sensor arrangement

A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component has a first magnetic sensor to sense a signal associated with a periodic changing magnetic field generated by relative movement of the mechanical component and the magnetic sensor arrangement, a second magnetic sensor to sense that signal, wherein the first sensor is arranged a fixed distance from the second sensor, and a determination unit coupled to the first and second sensors to receive output signals of the first and second sensors. The output signal of the first sensor is phase-shifted to the output signal of the second sensor, to compare the output signals for determining the absolute phase of the signal associated with the periodic changing magnetic field, and to determine information indicative of characteristics of the mechanical component based on the determined absolute phase of the signal associated with the periodic changing magnetic field.

Capacitance micrometer

WATER-REJECTION PROXIMITY DETECTOR AND METHOD

Combination sensor

PROCEDE ET DISPOSITIF DE MESURE DE FAIBLES DISTANCES ENTRE DEUX PIECES METALLIQUES

LA PRESENTE INVENTION A POUR OBJET UN PROCEDE ET UN DISPOSITIF POUR MESURER A CHAUD DE TRES FAIBLES DISTANCES ENTRE DEUX PIECES METALLIQUES 1, 2. SUR L'UNE DES DEUX PIECES 1, ON PLACE UN CAPTEUR 3 CONSTITUE PAR UN SUPPORT 4 EN MATERIAU REFRACTAIRE ET ISOLANT, CE SUPPORT PRESENTANT UNE SURFACE PLANE 5 RECOUVERTE D'UN DEPOT METALLIQUE 6 EN REGARD DE L'AUTRE PIECE 2 ET ON MESURE, A L'AIDE D'UN CAPACIMETRE 8, LA CAPACITE DU CONDENSATEUR FORME PAR LE CAPTEUR 3 ET L'AUTRE PIECE 2, CETTE DERNIERE PRESENTANT UNE SURFACE PLANE 7 PARALLELE A LA SURFACE METALLISEE 5 DU CAPTEUR 3 ET EN REGARD DE CELLE-CI, LA HAUTEUR DU SUPPORT 4 DU CAPTEUR 3 ETANT SUFFISAMMENT IMPORTANTE POUR ELIMINER D'EVENTUELLES CAPACITES PARASITES. APPLICATION A LA MESURE DE LA DISTANCE ENTRE LA MATRICE ET LE POINCON D'UNE PRESSE EN COURS DE MATRICAGE.

SENSOR FOR THE MEASUREMENT OF THE VARIATION OF FLOW IN A CONSTANT MAGNETIC FIELD

PROCEDE ET DISPOSITIF POUR LA DETERMINATION DE LA DISTANCE D'UNE SONDE MAGNETIQUE A UN RAIL DE REACTION CONDUCTEUR

L'INVENTION PORTE SUR UN PROCEDE ET UN DISPOSITIF POUR LA DETERMINATION DE LA DISTANCE ENTRE UNE SONDE, EN PARTICULIER POUR PALIER MAGNETIQUE OU DISPOSITIF DE SUSPENSION MAGNETIQUE, ET UN RAIL DE REACTION CONDUCTEUR 25, LA SONDE COMPORTANT AU MOINS UN CAPTEUR COMPORTANT AU MOINS DEUX BOBINES 21, 22 COUPLEES MAGNETIQUEMENT ET PLACEES EN FACE DU RAIL DE REACTION 25 QUI PRODUISENT UN CHAMP MAGNETIQUE ALTERNATIF 27 DONT LES REACTIONS SONT CAPTEES PAR LE CAPTEUR ET UTILISEES POUR LA DETERMINATION DE LA DISTANCE. POUR AVOIR UN HAUT NIVEAU DE TENSION UTILE, UNE INSENSIBILITE AUX CHAMPS ELECTRIQUES EXTERIEURS ET AUX VARIATIONS DE POTENTIEL ET UNE FAIBLE INFLUENCE DES CHAMPS MAGNETIQUES DUS AUX SYSTEME, ON DETECTE LES REACTIONS SUR LE CHAMP MAGNETIQUE ALTERNATIF 27 DES COURANTS DE FOUCAULT INDUITS PAR CE MEME CHAMP 27 DANS LE RAIL DE REACTION 25 ET ON LES UTILISE POUR LA DETERMINATION DE LA DISTANCE.

PROCEDE ET DISPOSITIF POUR MESURER LA DISTANCE ENTRE UNE CIBLE ET UN CAPTEUR

SUIVANT CE PROCEDE, ON DETECTE UNE PERTURBATION DE LA TENSION DANS UN SIGNAL D'ONDE TRIANGULAIRE ALIMENTANT DIRECTEMENT LEDIT CAPTEUR. LE DISPOSITIF COMPREND UN CIRCUIT RESONNANT SERIE ALIMENTE PAR UN OSCILLATEUR, UN COMPARATEUR ET UNE SOURCE D'ALIMENTATION STABILISEE, CARACTERISE EN CE QUE L'OSCILLATEUR O ALIMENTANT LE CAPTEUR 1 EST UN OSCILLATEUR D'ONDES TRIANGULAIRES RELIE A UN AMPLIFICATEUR DE PUISSANCE 10 ALIMENTANT DIRECTEMENT LE CAPTEUR 1 ET ADAPTE POUR PRODUIRE UN SIGNAL DE TENSION DE SORTIE PRESENTANT UNE PERTURBATION LORSQUE L'IMPEDANCE DU CAPTEUR VARIE, ET COMPREND UN CIRCUIT LOGIQUE 9 A TROIS ENTREES ET UN CIRCUIT MONOSTABLE REDECLENCHABLE 12. APPLICATION AUX CAPTEURS DE PROXIMITE.

PROCESS AND DEVICE FOR the DETERMINATION OF the DISTANCE From a MAGNETIC PROBE HAVE a CONDUCTING RAIL OF REACTION

Measurement of narrow gap between two hot metal workpieces - by determn. of capacitance between surface of one piece and metal sensor located on other piece

DIFFERENTIAL NUMERICAL SENSOR OF POSITION

PROXIMITY DETECTOR USING OF MAGNETO-RESISTANCES

CAPACITIVE DIMENSIONAL MEASURING EQUIPMENT LEFT LINEAR

DEVICE OF MEASUREMENT OF the LINEAR CLEARANCE Of a SHOCK ABSORBER OF VEHICULEAUTOMOBILE

IMPEDANCE MEASURING DEVICE

INDUCTIVE SYSTEM OF MEASUREMENT OF DISTANCE WITHOUT CONTACT, IN PARTICULAR FOR the DETECTION OF the LEVEL Of a MOLTEN METAL BATH

Electronic device for aeronautic application, has sensor with small diameter coils, and electronic circuit with integrator circuit measuring phase difference between voltage and current circulating in oscillating circuit

Un dispositif électronique (10) de mesure de distance entre une cible et un capteur inductif (20) distant selon l'invention comprend - une pluralité de bornes de connexion (13) destinées à être reliées électriquement au capteur inductif (20) distant au moyen de câbles électriques (30), - une résistance (12) et un condensateur (11) montés en série avec les bornes de connexion (13) afin de constituer un circuit oscillant lorsque le capteur inductif (20) est relié électriquement aux bornes de connexion (13), - un générateur (14) de signal périodique (V14) de fréquence sensiblement égale à la fréquence de résonance du circuit oscillant, qui excite le circuit oscillant, et - un circuit électronique (15) comprenant des moyens de mesure (17) du déphasage entre le signal (V14) généré par le générateur (14) et le courant circulant dans le circuit oscillant En augmentant la précision système de mesure, le dispositif selon l'invention permet d'utiliser des capteurs inductifs munis de bobines de plus ...

High precision non-contacting dimension measuring capacitive sensor device for industrial environments - uses fixed reference sensor with secondary active sensor supplied with gas flow between electrode and target

Capteur dimensionnel de très haute précision, sans contact, par moyen capacitif, susceptible de fonctionner en milieu sale (poussières, copeaux, liquides..... ). L'invention concerne un procédé et/ou un dispositif de mise en oeuvre du procédé, permettant d'effectuer des mesures dimensionnelles très précises, malgré la présence de poussières ou de liquides qui ordinairement interdisent ce type de mesures capacitives. L'invention consiste à utiliser plusieurs capteurs capacitifs dotés d'orifice(s) situé(s) dans et/ou près de l'électrode active, orifice(s) par lequel(s) est éjecté un même fluide sous pression, de façon à remplir tout l'espace situé entre l'électrode active de chaque capteur et sa cible; l'un de ces capteurs, géométriquement fixé par rapport à sa cible, constitue le moyen de mesure de la constante diélectrique du fluide; la mesure dimensionnelle peut alors être corrigée des fluctuations de composition et/ou de température du fluide utilisé.

MECHANICAL?ELECTRICAL TRANSDUCER GAUGE PROVIDED WITH A CIRCUIT FOR MAKING LINEAR THE RESPONSE OF THE GAUGE

Electric detector of distance, without contact

CAPACITIVE PROBE FOR the MEASUREMENT OF SMALL INTERVALS BETWEEN a SURFACE OF MEASUREMENT AND the EXTERNAL SURFACE Of a CONDUCTING MATERIAL

Processing machine on three dimensions and process of treatment of a part

L'invention concerne une machine de traitement sur trois dimensions. Selon l'invention, une tête de broche (28) est supportée levable sur un organe de transfert qui peut se déplacer suivant des axes X et Y sur une table, une broche (32) est tourillonnée rotative sur la tête (28), un capteur est tourillonné levable sur la tête (28) et il est disposé à l'extrémité inférieure d'un outil à proximité du bout de l'outil qui est fixé détachable à la broche; le mouvement relatif d'élévation du capteur vis-à-vis de la tête (28) est détecté par un détecteur, avant traitement de la pièce, la distance entre l'extrémité inférieure du capteur et le bout de l'outil est mesurée et est stockée dans un contrôleur; la tête (28) descend et quand le capteur vient en aboutement contre la pièce, cela est détecté; la hauteur du bout de l'outil contre la pièce est également détectée; après aboutement de l'extrémité du capteur sur la pièce, si la tête (28) descend de la distance, le bout de l'outil atteint l'extrémité ...

Method for adapting, as a function of temperature, conditions of oscillation of an oscillating (resonant) circuit and proximity detector employing the said method

Proximity detector

PROCESS AND EQUIPMENT TO MEASURE the BALANCING Of a METAL HEART IN a RUBBER COVER OR ANALOGUE

PROCESS AND EQUIPMENT TO MEASURE the BALANCING Of a METAL HEART IN a RUBBER COVER OR ANALOGUE

PROCESS AND EQUIPMENT TO MEASURE the BALANCING Of a METAL HEART IN a RUBBER COVER OR ANALOGUE

PROCESS AND EQUIPMENT TO MEASURE the BALANCING Of a METAL HEART IN a RUBBER COVER OR ANALOGUE

PROCESS AND EQUIPMENT TO MEASURE the BALANCING Of a METAL HEART IN a RUBBER COVER OR ANALOGUE

CAPACITIVE DISTANCE SENSING IN SEMICONDUCTOR PROCESSING TOOLS

A wireless sensor (10, 100, 200) includes at least one capacitive plate (10, 12; 102, 104) for sensing a distance relative to an object (14) of interest within a semiconductor-processing environment. The sensor (10, 100, 200) includes an internal power source (28, 342) and wireless communication (362) such that distance and/or parallelism measurements effected using the capacitive plate (s) (10, 12; 102, 104) can be provided wirelessly to an external device. © KIPO & WIPO 2009 ...

Fingerprint sensing panel and fingerprint sensor thereof

A fingerprint sensing panel and fingerprint sensor are provided. The fingerprint sensor includes first to third switches, a first capacitor, an impedance variation element and a sensing circuit. The first switch receives a system high voltage and is controlled by a pre-charge signal. The first capacitor is coupled between the first switch and a reference voltage. The impedance variation element is coupled between the first switch and the reference voltage and an impedance value of the impedance variation element is changed according to its vertical distance from a skin surface. The second switch receives the system high voltage. The third switch receives a read signal. The sensing circuit is coupled to the third switch and provides a fingerprint determination voltage.

ANORDNING FOER AVKAENNING AV NIVAAN AV EN SLAGGYTA

Device and method for compensating a capacitive sensor measurement for variations caused by environmental conditions in a semiconductor processing environment

DEVICE AND METHOD FOR COMPENSATING A CAPACITIVE SENSOR MEASUREMENT FOR VARIATIONS CAUSED BY ENVIRONMENTAL CONDITIONS IN A SEMICONDUCTOR PROCESSING ENVIRONMENT

A method (400) of sensing proximity to a showerhead (102, 202) in a semiconductor-processing system is provided. The method (400) includes. measuring (402) a capacitance that varies with proximity to the showerhead (102, 202), as well as with at least one external factor. The method also includes measuring (404) a capacitance that does not vary with proximity to the showerhead (102, 202), but does vary with the at least one factor. A compensated proximity output is calculated based upon the measured capacitances and is provided as an output (410).

MICRO-ELECTRICAL DISCHARGED BASED METROLOGY SYSTEM

A micro-electrical discharge machine based metrology system including a control unit with a sensing circuit and a micro -electrical discharge machine with a sensing probe. The micro -electrical discharge machine based metrology system capable of sensing dimensions of a work piece at pico-joule energy levels. The micro-electrical discharge machine based metrology system is a non-contact, non-destructive, and on-board metrology system capable of in-process quality assurance/quality control.

INDUCTIVE DISTANCE SENSOR

An inductive alignment of the coil (16), equipped with core, of an eddy current distance sensor (11) can be avoided if the coil (16) fills an annular space, which is predefined by the design, between the winding carrier (17) of the plastic coil body (15) and the flanges (18-19) thereof and the wall (21) of a crucible (20) made of ferromagnetic material, which is placed over the rear smaller flange (18) and at the end face (21) is seated against an annular area of the front larger flange (19) having the diameter of the crucible (20). The ferromagnetic coil core (31) coaxially engaging with the winding carrier (17) can therefore be arranged at the bottom (24) of the crucible (20) and can thus be mounted simultaneously with the crucible (20).

CAPACITANCE PROBES

A capacitance probe (26) is used on a coordinate measuring machine or machine tool to determine distance between the probe and a workpiece surface (30). To calibrate it, it is moved towards and/or away from the surface. Various methods are disclosed to determine a datum position ds corresponding to the position at which the probe touches the surface.

METHOD AND DEVICE FOR INDUCTIVE MEASUREMENT OF PHYSICAL PARAMETERS OF AN OBJECT OF METALLIC MATERIAL TOGETHER WITH USE OF THE METHOD AND THE DEVICE

A method and a device for inductive measurement of physical parameters of an object (1) of metallic material. In a measurement range, there is generated a time-varying magnetic field from a primary coil (4). The magnetic field induces eddy currents in the object which influence the time-varying magnetic field. The field is detected by a measuring coil (4), from which a signal is obtained which carries information about the desired parameters. A field-measuring coil (5) is introduced outside the measurement range but surrounded by an electric circuit generated at the measurement range. The field-measuring coil senses a current (6) which is induced in the electric circuit by the time-varying magnetic field. The interfering magnetic field generated by the current, and which influences the time-varying magnetic field, adds an error to the measurement. The output signal of the field-measuring coil is thereby used to compensate the output signal of the measuring coil such that the error caused ...

Magnetostrictive wavelet method for measuring pulse propagation time

A magnetostrictive sensor system and a method of measuring a magnetostrictive sensor pulse is provided. The measurement system and method includes providing a digital buffer circuit connected with an analog to digital converter to an analog waveform detector for receiving a magnetostrictive pulse waveform from a magnetostrictive waveguide. A template waveform is provided, and a returned magnetostrictive pulse waveform is recieved into the digital buffer circuit. The received pulse waveform is compared with the template waveform to determine an arrival time of the returned magnetostrictive pulse waveform. Providing the template waveform includes providing a synthesized return waveform generated to simulate a characteristic magnetostrictive return pulse waveform of the magnetostrictive system. The magnetostrictive sensor system includes a magnetostrictive waveguide, an analog waveform detector for receiving a magnetostrictive pulse waveform from the magnetostrictive waveguide, a comparing ...

Eddy current turbomachinery blade timing system

A system combining a transducer and a signal processing circuit measures the clearance distance from the transducer to an electrically conductive moving part of a machine. The transducer contains a magnet and a coil, both coupled magnetically to a region traversed by the machine part. Eddy currents are induced in the part as it passes through the magnetic field of the transducer. These currents produce a field which moves with the part and generates a characteristic signal in the transducer coil. Amplitude and timing attributes of the signal are measured by the signal processing circuit. An experimentally derived mathematical function which relates the amplitude and timing of this signal to the clearance distance between the transducer and the moving part is used to compute the clearance distance. During this calculation useful information is also developed about the speed and transit time of the moving part. The system is adapted to turbomachinery blade condition monitoring.

CAPACITOR ARRAY SENSORS FOR DETERMINING CONFORMITY TO SURFACE SHAPE

Method and apparatus for emulation of a linear variable differential transducer by a capacitive gaging system

A capacitive gaging system comprising a capacitive displacement sensor and an interface circuit is used to replace a Linear Variable Differential Transducer (LVDT). An output of the capacitive displacement sensor is modified by the interface circuit which provides an output signal or signals representative of different types of LVDT outputs. The capacitive displacement sensor and the interface circuit can then be used to replace the LVDT in an LVDT measurement system. Accordingly, the capacitive displacement sensor and the interface circuit replace the LVDT without replacing the rest of the measurement system.

Sensor and inspection system deploying an optical conduit

Embodiments of an inspection system comprise a conduit that can transmit light between a sensor and a processing component. In one embodiment, the sensor comprises an element that generates an electromagnetic field in response to an input from the processing component. The input comprises a light signal that traverses the conduit to the sensor. The sensor converts the light signal to an electrical signal to operate the element. In one example, the sensor generates a plurality of light signals, which also traverse the conduit to the diagnostic component where the lights signals are processed to determine, in one example, proximity of an object to the sensor.

CAPACITIVE DISTANCE SENSOR

A capacitive distance sensor is provided. The distance sensor includes a sensor element having an electrically conductive, elongated, flat sensor area which in turn contains a number of holes. The sensor area is completely surrounded by an electrically non-conductive insulating body, with the result that the insulating body completely covers the edge regions of the holes. The sensor element is produced, in particular, by first of all making the holes in the sensor area. In a subsequent step, the sensor area is completely encased by the insulating body which also completely fills the holes in the sensor area. 1. A capacitive distance sensor comprising:a sensor element that comprises an electrically conductive, elongated, flat sensor surface,a plurality of holes formed in the sensor surface; andan electrically nonconductive insulating body completely enclosing the sensor surface such that the insulating body completely covers edge regions of the holes.2. The capacitive distance sensor as claimed in claim 1 , wherein the holes are configured as elongated holes and wherein comparatively long axes of the elongated holes extend in a longitudinal direction of the sensor surface.3. The capacitive distance sensor as claimed in claim 1 , wherein the sensor element is flexible.4. The capacitive distance sensor as claimed in claim 1 , wherein the sensor surface is composed of copper.5. The capacitive distance sensor as claimed in claim 1 , wherein at least a portion of the insulating body is composed of PVC.6. The capacitive distance sensor as claimed in claim 1 , wherein the insulating body contains a plurality of cutouts corresponding to the plurality holes claim 1 , and wherein each cutout extends within one of the holes.7. The capacitive distance sensor as claimed in claim 6 , wherein a cross-sectional area of each cutout has substantially a same shape as that of the respective corresponding hole through which the cutout extends.8. A method for manufacturing a sensor ...

Proximity Sensor and Method For Determining The Proximity To An Electrically Conductive Body

The invention relates to a proximity sensor and a method for determining the proximity to an electrically conductive body. By means of a transmitting arrangement, to this end an alternating magnetic field is transmitted at a selected frequency an alternating magnetic field registered by a receiving arrangement. Moreover, frequencies of the registered alternating magnetic field, which are outside a predefined frequency band comprising the selected frequency and have an amplitude value above a predefined threshold value, are detected by means of a detection means. In a control logic, by means of a blocking circuit, frequencies of a predefined frequency band comprising the detected frequency or a plurality of predefined frequency bands comprising in each case one of the detected frequencies, are defined as blocked frequencies. Moreover, a frequency following the respective selected frequency and different from the selected frequency and the blocked frequencies, denoted hereinafter as the following frequency of the respectively selected frequency, is defined in a selection controller. By means of a time control of the control logic, the following frequency of a selected frequency is continuously selected as a newly selected frequency for a new time window following immediately after or chronologically spaced apart from the selected time window. 1. A proximity sensor for determining the proximity to an electrically conductive body , said sensor comprising:a transmitting arrangement structured and operable to transmit a transmitted alternating magnetic field at a selected frequency,a receiving arrangement structured and operable to register a registered alternating magnetic field,a detection means structured and operable to detect one or more frequencies of the registered alternating magnetic field, which are outside a predefined frequency band having the selected frequency and have an amplitude value above a predefined threshold; and a blocking circuit structured and ...

Techniques for calibrating a linear position sensor

Techniques are described for sensing a position of an object located within an enclosure over a position range. The techniques include generating an expected output signal of each of a plurality of magnetic field sensors disposed along an outer surface of the enclosure, receiving actual output signals from the sensors, wherein each actual output signal indicates a relative proximity of a magnetic target coupled to the object to the corresponding sensor. The techniques further include superimposing the expected output signal over the actual output signals, and iteratively shifting the expected output signal over position relative to the actual output signals and comparing the shifted expected output signal to the actual output signals, until the expected output signal compared to the actual output signals corresponds to a substantially minimized error parameter. The position of the object may then be determined based at least in part on the shifted expected output signal.

MAGNETIC SENSOR ARRANGEMENT

A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component has a first magnetic sensor to sense a signal associated with a periodic changing magnetic field generated by relative movement of the mechanical component and the magnetic sensor arrangement, a second magnetic sensor to sense that signal, wherein the first sensor is arranged a fixed distance from the second sensor, and a determination unit coupled to the first and second sensors to receive output signals of the first and second sensors. The output signal of the first sensor is phase-shifted to the output signal of the second sensor, to compare the output signals for determining the absolute phase of the signal associated with the periodic changing magnetic field, and to determine information indicative of characteristics of the mechanical component based on the determined absolute phase of the signal associated with the periodic changing magnetic field. 1. A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component ,the magnetic sensor arrangement comprisinga first magnetic sensor configured to sense a signal associated with a periodic changing magnetic field generated due to a relative movement of the mechanical component in relation to the magnetic sensor arrangement,a second magnetic sensor configured to sense the signal associated with the periodic changing magnetic field, wherein the first magnetic sensor is arranged at a fixed distance to the second magnetic sensor, anda determination unit coupled to the first magnetic sensor and the second magnetic sensor and being configuredto receive the output signal of the first magnetic sensor and the output signal of the second magnetic sensor, wherein the output signal of the first magnetic sensor is phase-shifted to the output signal of the second magnetic sensor,to compare the output signals for determining the absolute phase of the signal associated ...

Capacitive sensing system

The invention relates to a lithography system. The lithography system has a projection lens system and a capacitive sensing system. The projection lens system is provided with a final projection lens. The capacitive sensing system is arranged for making a measurement related to a distance between the final projection lens and a target. The capacitive sensing system includes at least one capacitive sensor. Additional, the capacitive sensing system is provided with a flexible printed circuit structure and at least one integrated flex print connector. The at least one sensor is located in the flexible printed circuit structure. The flexible printed circuit structure has a flexible base provided with conductive electrodes for the at least one sensor and conductive tracks. The conductive tracks extend from the electrodes along the at least one integrated flex print connector.

CONTROL SYSTEM

The invention relates to a control system for driving a motorized closure element of a motor vehicle, wherein a control arrangement and at least one distance sensor are provided in order to detect operator control events, wherein a distance from a user can be detected by means of the distance sensor. The invention proposes that the distance sensor has a changing sensitivity along a sensor extent, and in that a longitudinal movement by the user along the sensor extent produces a pattern in the profile of the sensor signal with respect to time, which pattern is detected by the control arrangement at least as part of an operator control event, owing to the sensitivity profile along the sensor extent. 1. A control system for driving a motorized closure element of a motor vehicle , wherein a control arrangement and at least one distance sensor are provided in order to detect operator control events , wherein a distance from a user can be detected by means of the distance sensor ,wherein the distance sensor has a changing sensitivity along a sensor extent, and in that a longitudinal movement by the user along the sensor extent, produces a pattern in the profile of the sensor signal with respect to time, which pattern is detected by the control arrangement at least as part of an operator control event, owing to the sensitivity profile along the sensor extent.2. The control system as claimed in claim 1 , wherein the sensor extent of the distance sensor runs in a straight line at least in sections claim 1 , and/or in that the sensor extent runs with a bend at least in sections.3. The control system as claimed in claim 1 , wherein the distance sensor has a sensor element which is arranged along the sensor extent of the distance sensor.4. The control system as claimed in claim 1 , wherein the sensor element is an elongate measurement electrode which comprises at least one electrical conductor.5. The control system as claimed in claim 1 , wherein the sensitivity profile along ...

DISPLACEMENT DETECTION DEVICE

To provide a displacement detection device that detects a displacement of a measuring object housed in a casing without changing the design of the casing or while suppressing the design change of the casing. 1. A displacement detection device comprising:a magnet which is located outside a casing that houses a measuring object and which forms a magnetic field inside the casing;a soft magnetic material which is connected to the measuring object inside the casing and displaced in accordance with displacement of the measuring object and which is disposed in a flow path of liquid or gas and in the magnetic field formed by the magnet; anda sensor which is disposed outside the casing and in a magnetic field formed by the magnet and which is configured to detect a change in magnetic flux density due to displacement of the soft magnetic material.2. The displacement detection device according to claim 1 , wherein the casing is made of a non-magnetic material.35-. (canceled)6. The displacement detection device according to claim 1 , wherein the soft magnetic material has a disk shape of which a cross-sectional shape in a cross section perpendicular to a displacement direction of the measuring object is circular.7. The displacement detection device according to claim 2 , wherein the soft magnetic material has a disk shape of which a cross-sectional shape in a cross section perpendicular to a displacement direction of the measuring object is circular.8. The displacement detection device according to claim 1 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.9. The displacement detection device according to claim 2 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.10. The displacement detection device according to claim 6 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.11. The displacement detection device according to claim 1 , wherein the soft magnetic material is ...

SYSTEMS AND METHODS FOR DETERMINING ABNORMAL INFORMATION ASSOCIATED WITH A VEHICLE

The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique. 1. A system , comprising:a storage device storing a set of instructions; obtain real-time information associated with a bicycle;', 'obtain reference information associated with the bicycle;', 'determine, based on the real-time information and the reference information, abnormal information associated with the bicycle; and', 'transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique., 'a processor in communication with the storage device, wherein when executing the set of instructions, the processor is configured to cause the system to2. The system of claim 1 , wherein the real-time information and the reference information include at least one of groups:a first voltage that is associated with a wheel of the bicycle and a reference voltage that is associated with the wheel of the bicycle;noise information associated with the bicycle and a relationship between noise frequency ranges and fault types associated with the bicycle;a second voltage that is associated with a solar panel installed on the bicycle and a voltage range that is associated with the solar panel; ora real-time level signal associated with a connection between the solar panel and a lock of the bicycle, and a reference level signal that is ...

PROXIMITY SENSOR FOR SUBSEA ROTATING EQUIPMENT

A proximity sensing system is configured to sense proximity of a rotating component in subsea rotating equipment such as pumps, compressors and separators. A plurality of sensing probe modules are included to sense proximity at various locations of the rotating shaft. The probe modules can include a fixed length stinger that can be gas-filled to maintain atmospheric pressure. The probe modules can also be a stinger-less design were the sensor is fixed to an inner pump housing and flexible cable is run through a channel of an outer pump pressure casing to a high pressure penetrator. 1. A subsea rotating machine having a proximity sensing system comprising:a rotating portion;a non-rotating pressure housing surrounding the rotating portion;a conduit formed through the pressure housing having an inner end opening near a target surface of the rotating portion and a outer end opening to an outer surface of the pressure housing;a proximity sensor probe fixed within the conduit at its inner end, the sensor probe having a sensor tip configured and positioned to sense distance between the sensor tip and the target surface;a high pressure penetrator configured to form a high-pressure seal with the pressure housing; anda cable running from sensor probe, through conduit to the penetrator.2. The machine of further comprising sensor electronics including an analog to digital converter claim 1 , the sensor electronics being in electrical connection with the sensor probe via at least the coaxial cable.3. The machine of wherein the sensor electronics being are in electrical connection with the sensor probe using one or more protected conduits.4. The machine of wherein the one or more protected conduits are configured to be gas-filled.5. The machine of wherein the sensor electronics are in electrical connection with a plurality of proximity sensor probes.6. The machine of wherein the cable is a coaxial cable.7. The machine of wherein the sensor probe includes at least some electronics ...

POSITIONING WITH A MAGNETIC SENSOR FOR A VEHICLE

A method to determine a position of a portable apparatus relative to a vehicle including generating a magnetic field by the vehicle, detecting the magnetic field by a magnetic field sensor of the portable apparatus, and evaluating the magnetic field to determine the position of the portable apparatus relative to the vehicle. 1. A method for determining a position of a portable apparatus relative to a vehicle , the method comprising:generating a magnetic field by the vehicle;detecting the magnetic field by a magnetic field sensor of the portable apparatus; andevaluating the magnetic field to determine a position of the portable apparatus relative to the vehicle.2. The method of claim 1 , wherein the evaluation of the magnetic field comprises taking into consideration a magnetic field of the Earth.3. The method of claim 1 , wherein the portable apparatus is a smartphone.4. The method of claim 1 , wherein the magnetic field sensor detects only a magnetic field component of an electromagnetic field as the magnetic field.5. The method of claim 1 , wherein the magnetic field sensor comprises a Hall sensor or an xMR sensor.6. The method of claim 1 , further comprising transmitting the position of the portable apparatus or measurement results from the magnetic field sensor via a radio link from the portable apparatus to the vehicle claim 1 , wherein the radio link is based on Bluetooth claim 1 , WLAN claim 1 , GSM and/or mobile radiocommunication.7. The method of claim 6 , wherein an authorization of the portable apparatus for the vehicle is checked by a challenge-response method via the radio link depending on the position of the portable apparatus.8. A method for activating a vehicle function claim 6 , the method comprising:determining a position of a portable apparatus relative to the vehicle by generating a magnetic field by the vehicle, detecting the magnetic field by a magnetic field sensor of the portable apparatus, and evaluating the magnetic field to determine a ...

DISPLACEMENT DETECTION DEVICE

Provided is a displacement detection device which reduces the influence of disturbance noise on a magnetic field to be detected and makes a range detectable by a monopole magnet wider than a pitch of a magnetic detection elements. 1. A displacement detection device , comprising:a magnet which is displaced in one direction, is rod-shaped and has a form in which a longitudinal direction and the one direction form a predetermined angle; anda sensor in which magnetic detection element groups, which detect a magnetic flux density of a magnetic field formed by the magnet in directions orthogonal to the one direction, are arranged in pairs with a predetermined interval, and which outputs a difference between outputs of the magnetic detection element groups.2. The displacement detection device according to claim 1 , wherein:the sensor comprises: magnetic detection elements, which are included in the magnetic detection element groups and have a sensitive direction in a first direction orthogonal to the one direction; and magnetic concentrators which convert a magnetic flux in a second direction orthogonal to the one direction and the first direction into a magnetic flux in the first direction.3. The displacement detection device according to claim 2 , wherein:the sensor detects a magnetic flux density in the first direction by adding outputs of the magnetic detection elements included in the magnetic detection element groups and detects a magnetic flux density in the second direction by calculating a difference between the outputs of the magnetic detection elements included in the magnetic detection element groups.4. The displacement detection device according to claim 1 , wherein:the magnet has a magnetization direction in a direction orthogonal to the one direction.5. The displacement detection device according to claim 2 , wherein:the magnet has a magnetization direction in a direction orthogonal to the one direction.6. The displacement detection device according to claim ...

Dynamic collar swage conformance checking based on swage tool parameters

Systems and methods are provided for inspecting fastener installation. One embodiment is a method for inspecting installation of a fastener. The method includes determining an initial distance between a nose of a swage tool and an Inner Mold Line (IML) of a part, operating the swage tool to swage a collar onto a fastener that protrudes through the IML of the part, determining a terminal distance of the nose to the IML during swaging, prior to a pintail of the fastener breaking, and arriving at a conclusion indicating a state of a fastener installation, based on the terminal distance.

SYSTEMS AND METHODS FOR CLOSED LOOP CURRENT SENSING

A current sensor for sensing a direct magnetic field generated by a current through a conductor includes at least one first magnetic field sensing element spaced from at least one second magnetic field sensing element, with the magnetic field sensing elements configured to sense the direct magnetic field at different magnitudes. The direct magnetic field has a first direct coupling factor with respect to the at least one first magnetic field sensing element and a second direct coupling factor with respect to the at least one second magnetic field sensing element. A feedback conductor configured to carry a feedback current generates a feedback magnetic field that has a first feedback coupling factor with respect to the at least one first magnetic field sensing element and a second feedback coupling factor with respect to the at least one second magnetic field sensing element. A circuit generates the feedback current based on the direct and feedback magnetic fields and a sense element senses the feedback current. 1. A current sensor for sensing a direct magnetic field generated by a current through a primary conductor comprising:a plurality of magnetic field sensing elements comprising at least one first magnetic field sensing element spaced from at least one second magnetic field sensing element, wherein the at least one first magnetic field sensing element and the at least one second magnetic field sensing element are configured to sense the direct magnetic field at different magnitudes, the direct magnetic field having a first direct coupling factor with respect to the at least one first magnetic field sensing element and a second direct coupling factor with respect to the at least one second magnetic field sensing element;a feedback conductor configured to carry a feedback current generating a feedback magnetic field, the feedback magnetic field having a first feedback coupling factor with respect to the at least one first magnetic field sensing element and a ...

SMART GLASSES AND METHOD FOR CONTROLLING THE SAME

Smart glasses which is automatically activated by being used includes a display screen, a frame and two legs. A switch is located on a joint between the frame and one of the two legs. The switch turns on when the two legs rotate away and the switch turns off when the two legs rotate together. A state of the switch is acquired when the smart glasses is in a sleep mode and the display screen is activated when the switch turns on, and sensors on the smart glasses can further sense and detect physical characteristics of a user to identify the user and his authority and thus prevent or allow the automatic activation. 1. A pair of smart glasses comprising:a display screen;a frame and two legs, wherein the frame is connected to the two legs, and the two legs are rotatable relatively to the frame;a switch located on a joint between the frame and one of the two legs, wherein the switch turns on when the two legs rotate to away from the frame, and the switch turns off when the two legs rotate toward the frame;a storage device; andat least one processor, wherein the at least one processor is electrically connected to the switch;the storage device storing one or more programs, voice data and fingerprint data of at least one authorized user, which when executed by the at least one processor, cause the at least one processor to:acquire a state of the switch when the smart glasses is in sleep mode; andactivate the display screen when the switch turns on.2. The smart glasses according to claim 1 , wherein the at least one processor is further caused to:control at least one sensor to detect environmental data around the smart glasses when the switch turns on;determine whether a user is going to use the smart glasses according to the detected environmental data; andactivate the display screen when the user is going to use the smart glasses.3. The smart glasses according to claim 2 , wherein the at least one sensor is located on the two legs and electrically connected to the at least ...

METHOD AND APPARATUS FOR MEASURING PROCESS KIT CENTERING

Embodiments disclosed herein include a sensor wafer. In an embodiment, the sensor wafer comprises a substrate, wherein the substrate comprises a first surface, a second surface opposite the first surface, and an edge surface between the first surface and the second surface. In an embodiment, the sensor wafer further comprises a plurality of sensor regions formed along the edge surface, wherein each sensor region comprises a self-referencing capacitive sensor. 1. A sensor wafer , comprising:a substrate, wherein the substrate comprises a first surface, a second surface opposite the first surface, and an edge surface between the first surface and the second surface; anda plurality of sensors positioned along the edge surface, wherein each sensor is a capacitive sensor.2. The sensor wafer of claim 1 , wherein the plurality of sensors comprises at least three sensors.3. The sensor wafer of claim 1 , wherein each sensor is a self-referencing capacitive sensor claim 1 , and wherein each sensors comprises a first probe and a second probe claim 1 , wherein an output phase of the first probe is 180 degrees offset from an output phase of the second probe.4. The sensor wafer of claim 1 , further comprising:a recess into the first surface of the substrate proximate to each sensor.5. The sensor wafer of claim 4 , wherein the recess extends back from the edge surface at least 1.0 mm.6. The sensor wafer of claim 1 , further comprising:a plurality of second sensors on the second surface of the substrate.7. The sensor wafer of claim 6 , wherein the second sensors are recessed from the second surface.8. The sensor wafer of claim 1 , further comprising an electric field guard below each of the plurality of sensors.9. The sensor wafer of claim 1 , further comprising:a computing module, wherein the computing module is communicatively coupled to the plurality of sensors.10. The sensor wafer of claim 9 , wherein the computing module comprises one or more of a power source claim 9 , a ...

LARGE SURFACE MAGNETIC FIELD SENSOR ARRAY

A plurality of magnetic field sensors (), for example arranged in an array (), is operative to measure changes in magnetic field strength proximate the surface(s) () of a test structure (). The test structure () may approximate the geometry of an airplane fuselage, wing, or the like. An electric current is applied to the test structure (), and the magnetic field sensors () sense changes in a magnetic field caused by the current. A corresponding plurality of integrators () convert the sensor () outputs to magnetic field strength values. From the plurality of magnetic field strength values and corresponding sensor locations (), a current density over the target surface () is inferred. 11001824. A method () of analyzing an electrical current over a target surface ( , ) , comprising:{'b': 102', '26', '32, 'providing () a plurality of magnetic field sensors (), each sensor operatively connected to an integrator ();'}{'b': '104', 'positioning () the plurality of magnetic field sensors proximate the target surface;'}{'b': '106', 'applying () an electrical current to the target surface;'}{'b': 108', '27, 'sensing () a change in magnetic field strength at one or more sensor locations ();'}{'b': '110', 'integrating () the changes in magnetic field strength to derive a magnetic field strength value at each sensor location; and'}{'b': '112', 'inferring () a current density over the target surface from the plurality of magnetic field strength values and corresponding sensor locations.'}2114116. The method of wherein inferring a current density over the target surface comprises inferring () a local current value from each magnetic field strength value claim 1 , and mapping () the local current values to the target surface using the corresponding sensor locations.3. The method of further comprising{'b': '118', 'interpolating () magnetic field strength values between sensor locations;'}{'b': '120', 'calculating () virtual sensor locations corresponding to the interpolated magnetic ...

PORTABLE SURFACE CHARACTERISTICS MEASUREMENT DEVICE AND CONTROL METHOD THEREOF

Disclosed are a portable surface characteristics measurement device and a control method thereof. The portable surface characteristics measurement device includes: a roughness sensor configured to convert a signal sensed from a surface of an object during movement of the portable surface characteristics measurement device on the surface of the object into an electric vibration signal; a movement measurement sensor configured to measure a movement physical quantity of the portable surface characteristics measurement device; and a processor configured to change a sampling interval depending on the measured movement physical quantity, and sample the vibration signal in real time, wherein the processor is configured to perform Fourier transform on the sampled vibration signal, and identify a peak frequency band shown in the Fourier-transformed vibration signal as surface roughness information of the object. 1. A portable surface characteristics measurement device comprising:a roughness sensor configured to convert a signal sensed from a surface of an object during movement of the portable surface characteristics measurement device on the surface of the object into an electric vibration signal;a movement measurement sensor configured to measure a movement physical quantity of the portable surface characteristics measurement device; anda processor configured to change a sampling interval depending on the measured movement physical quantity, and sample the vibration signal in real time,wherein the processor is configured to perform Fourier transform on the sampled vibration signal, and identify a peak frequency band shown in the Fourier-transformed vibration signal as surface roughness information of the object.2. The portable surface characteristics measurement device as claimed in claim 1 , wherein the processor is configured to decrease the sampling interval in case that the movement physical quantity is increased claim 1 , and increase the sampling interval in case ...

INDUCTIVE PROXIMITY SENSOR

A method and an inductive proximity sensor for detecting an object having at least one coil, wherein at least one transmission current pulse can be applied to the coil by a control and evaluation unit and having the control and evaluation unit for outputting an object detection signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that is generated by the transmission current pulse at the coil in at least one section from or after the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse and to form scan values, whereby the voltage pulse is digitized. 1. An inductive proximity sensor for detecting an object , the inductive proximity sensor comprising:at least one coil, anda control and evaluation unit for outputting an object detection signal wherein at least one transmission current pulse can be applied to the at least one coil by the control and evaluation unit,wherein the control and evaluation unit is further configured to scan at least one induced voltage pulse that is generated by the transmission current pulse at the at least one coil in at least one section from or after the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values of at least two voltage pulses for a distance determination of a metallic object.2. The inductive proximity sensor in accordance with claim 1 ,wherein the voltage pulse is digitized from the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse.3. The inductive proximity sensor in accordance with claim 1 ,wherein the inductive proximity sensor has a first coil as the transmitter coil and ...

Sensor for detecting an object and method of evaluating a sensor signal

A sensor for detecting an object is provided that has a detection unit for detecting a sensor signal and a control and evaluation unit that is configured to determine an object property by evaluating the sensor signal, to determine a correction value for interference of the sensor environment from the sensor signal using a method of machine learning, and to take the correction value into account in the determination of the object property.

SINGLE-ELEMENT DOOR/WINDOW OPENING DETECTOR

A door/window opening detector including an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, the second resonant frequency being different from the first resonant frequency, the antenna having the first resonant frequency when in proximity to a door/window having a given dielectric constant and the second resonant frequency when not in proximity to a door/window having the given dielectric constant, and an alarm indication generator operable, in response to receiving an indication that a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency, for generating an alarm indication of opening of the door/window. 1. An article proximity indicator comprising:an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, said second resonant frequency being different from said first resonant frequency, said antenna having said first resonant frequency when in proximity to an article having a given dielectric constant and said second resonant frequency when not in proximity to said article having said given dielectric constant;a high-frequency detector operable for generating a direct electrical current corresponding to an intensity of a reflected electromagnetic signal received from said antenna;an analog to digital converter communicating with said high-frequency detector and operable for receiving said direct electrical current corresponding to said intensity of said reflected electromagnetic signal from said high-frequency detector and for converting said direct electrical current into a digital value corresponding to said intensity of said reflected electromagnetic signal; and for receiving said digital value from said analog to digital converter;', 'for ascertaining, based on said digital value corresponding to said intensity of said reflected electromagnetic signal, whether said resonant frequency of said ...

Method and device for discriminatory capacitive detection, and apparatus provided with such a device

A method for capacitive detection of nearby objects that may be located in the environment of an equipment provided with a capacitive detection device including a detection step, called discriminative detection step, including the following operations:polarizing a first nearby object at a first alternating potential (V1), different from a ground potential (M), and from the potential of at least one second nearby object, at a first frequency (F1); anddetermining a first discriminative signal representative of a capacitance, called electrode-object capacitance, seen by the at least one measurement electrode, at said first frequency (F1).

ELECTROSTATIC CAPACITANCE TYPE HEIGHT SENSOR, LASER MACHINING NOZZLE USING SAME, AND LASER MACHINING DEVICE

Electrostatic capacitance type height sensor () includes sensor electrode () attached to a tip of laser machining nozzle (), signal processor () that transmits a voltage signal to sensor electrode () and detects a signal from sensor electrode () to measure a distance between a tip of sensor electrode () and workpiece () electrically connected to a ground, and cable () electrically connecting sensor electrode () to signal processor (). Signal processor () includes a disconnection determinator that determines that cable () is broken if the signal from sensor electrode () is higher or equal to a predetermined level. 1. An electrostatic capacitance type height sensor comprising:a sensor electrode attached to a tip of a laser machining nozzle;a signal processor that transmits a voltage signal to the sensor electrode and detects a signal from the sensor electrode to measure a distance between a tip of the sensor electrode and a workpiece electrically connected to a ground; anda cable electrically connecting the sensor electrode to the signal processor,wherein the signal processor includes a disconnection determinator that determines that the cable is broken on condition that the signal from the sensor electrode is higher or equal to a predetermined level.2. The electrostatic capacitance type height sensor according to claim 1 , wherein the predetermined level is within a range from a value of the signal sent from the sensor electrode when the distance between the tip of the sensor electrode and the workpiece is a predetermined distance that is longer than a maximum distance set for laser processing to a value of the signal sent from the sensor electrode when the cable is not connected to the signal processor claim 1 , inclusive.3. A laser machining nozzle comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a first nozzle electrically connected to the sensor electrode of the electrostatic capacitance type height sensor according to , the first nozzle defining a ...

High pressure magneto-resistive non-contact displacement sensor

A sensor system includes: a sensor insert sub-assembly including a sensor holder, a biasing magnet connected to the sensor holder, and a first sensor connected to the sensor holder, wherein a first end of the sensor housing insert sub-assembly is configured to face a target; and a pressure barrier connected to the sensor insert sub-assembly. A portion of the pressure barrier extends between the first end of the sensor housing insert sub-assembly and the target. There is a gap between the portion of the pressure barrier and the first end of the sensor insert sub-assembly. The first sensor includes a magneto-resistive sensor that is configured to detect a displacement of the target relative to the sensor housing insert sub-assembly.

Omnipolar Schmitt Trigger

A sensor is provided having a magnetic field sensing element to generate a magnetic field signal, a switching circuit coupled to receive the magnetic field signal and generate a switching signal that changes a polarity of the magnetic field signal at a predetermined frequency, and a comparison device configured to receive the switching signal and generate an output signal that changes a level in response to the switching signal crossing a predetermined threshold. The switching circuit is disposed between the magnetic field sensing element and the comparison device and can provide the comparison device an input signal (i.e., the switching signal) that changes polarity at the predetermined frequency. The comparison device can sense characteristics, such as but not limited to crossing operate and release threshold levels, of both north and south polarity magnetic field signals using the switching signal.

Position Measuring Device

A position measuring device includes a measuring standard that has a first magnetization in a first section for generating a first signal level. The first magnetization is oriented in a first direction, has a first clearance between two adjacent unlike poles, and generates a first maximum of the field strength at the working distance. Furthermore, the measuring standard has a second magnetization in a second section situated next to the first section for generating a second signal level. The second magnetization is oriented in a second direction, has a second clearance between two unlike poles, and generates a first maximum of the field strength at the working distance. The first direction is oriented counter to the second direction, the first clearance is greater than the second clearance, and the first maximum is greater than the second maximum. 1. A position measuring device , comprising:a measuring standard including magnetic poles arranged along a measuring direction; anda scanning unit including a sensor and adapted to generate an electrical signal when the measuring standard is scanned at a working distance along the measuring direction;wherein the measuring standard includes a first magnetization in a first section to generate a first signal level of the electrical signal, the first magnetization being oriented in a first direction, having a first clearance between two adjacent, unlike poles, and being adapted to generate a first maximum of magnetic field strength at the working distance;wherein the measuring standard includes a second magnetization, to generate a second signal level of the electrical signal, in a second section located adjacent to the first section, the second magnetization being oriented in a second direction, having a second clearance between two adjacent, unlike poles, and being adapted to generate a second maximum of the magnetic field strength at the working distance; andwherein the first direction is oriented counter to the second ...

COMBINATION SENSOR

An arrangement for automatically contactlessly detecting elongate objects (W), such as cables, wires or profiles, has a quasi-coaxially arranged group of a first optical measuring system (D) for determining the external diameter and a second optical measuring system (C) for determining the color using a different measurement principle. The functional and local separation of the two measuring systems (C, D) is achieved by using different wavelength ranges and by a long-pass filter (C). A third, virtual measuring system (P) may be provided for the purpose of determining the cable location and is used to weight measured values of the color measurement and measured values of an optional eddy current sensor. The optical measuring systems (D, C, P) for determining the diameter, the color and the position have a common optical disc-shaped measuring volume (DCPv) which is preferably arranged centrally in the guide device () for the elongate object (W). 1. An arrangement for automatic contactless detection of elongate objects (W) , comprising at least two optical measuring systems (D , C) based on different measurement methods ,wherein at least a first optical measuring system (D) for determining an outside diameter (Wdo) of the object (W) and at least one second optical measuring system (C) for determining a color of the object (W) from a combination with a common disk-shaped measurement volume (DCPv),{'b': 1', '4, 'the first measuring system (D) comprises at least a first illumination arrangement (DP) and a first sensor array (DP) positioned on the opposite side of the measurement volume (DCPv),'}{'b': 2', '1', '1, 'a lens (DCP) is arranged between the first illumination arrangement (DP) and the measurement volume (DCPv), which lens is designed and positioned as a collimating lens for light of the first illumination arrangement (DP), and'}{'b': 1', '4', '3', '1', '2', '2', '4, 'the second measuring system (C) comprises at least one second illumination arrangement (C), a ...

Systems and methods for determining abnormal information associated with a vehicle

The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information associated with the bicycle.

RANGING SYSTEM

The present disclosure discloses a ranging system comprising a signal transmitter, a signal receiver, a ranging wheel, an electronic counter, an angle sensor and a data processing module integrated within a same device. The present disclosure also discloses a ranging system comprising a ranging device and a terminal device in communication with the ranging device, the ranging device comprises a signal transmitter, a signal receiver, a ranging wheel and an electronic counter, the terminal device comprising a data processing module. The ranging device or the terminal device also includes an angle sensor therein. The data processing module displays the received laser ranging information, or generates, in real-time, the travel trajectory of the ranging wheel based on distance information of the electronic counter and angle information of the angle sensor and draws the travel trajectory. The present disclosure may enable continuous measurement of any regular route, and meanwhile can also generate the corresponding travel trajectory and effectively improve the working efficiency; in addition, it may mark dots or mark lines for an actual construction site according to a pre-designed drawing. 1. A ranging system , characterized in that: the ranging system comprising a signal transmitter , a signal receiver , a ranging wheel , an electronic counter , an angle sensor , a data processing module and a display module , wherein ,each of the signal receiver, the electronic counter and the angle sensor is connected with the data processing module, the signal receiver receives a signal transmitted by the signal transmitter and converts the signal into an electric signal to be transferred to the data processing module, the data processing module processes the electric signal to obtain ranging information; the electronic counter transfers distance information of the ranging wheel to the data processing module, the angle sensor transfers angle information of the ranging wheel to the ...

Measurement system and measurement method

A measurement system for measuring a consumption amount of a focus ring in a plasma etching apparatus including a processing chamber, a lower electrode and the focus ring surrounding a periphery of the lower electrode, comprises a sensor substrate having a distance sensor and a measurement unit configured to measure a consumption amount of the focus ring. The measurement unit includes a transfer instruction unit, an acquisition unit and a measurement unit. The transfer instruction unit is configured to instruct a transfer unit to transfer the sensor substrate into the processing chamber. The acquisition unit is configured to acquire information on a physical amount corresponding to a distance from the distance sensor to the focus ring, which is measured by the distance sensor. The measurement unit is configured to measure a consumption amount of the focus ring based on the acquired information on the physical amount.

Method and Device for Ascertaining a Positional Deviation of a Rotational Body

The invention relates to a method and an apparatus for simultaneously ascertaining surface parallelism, axial perpendicularity and rotational surface runout of a rotational surface capable of rotating about a rotation axis relative to a reference surface. According to the invention, at least three distance sensors are provided which are stationary with respect to the reference surface and which have a measuring direction perpendicular to the reference surface and in the direction of the flat face of the rotational body. The distance sensors transmit distances ascertained during the rotation of the rotational body to an evaluation device, wherein an axial perpendicularity, a rotational surface runout of the rotational body and a surface parallelism can be ascertained from said distances. Prior to measuring the rotational surface runout, the angular deviation of the rotational surface is first ascertained. 1301130202222302022223030403030. A method for ascertaining a positional deviation of a rotational body () capable of rotating about a rotation axis relative to a reference surface () , said rotational body comprising at least one first flat face , characterized by simultaneously ascertaining at least axial perpendicularity and rotational surface runout of the first flat face of the rotational body () , wherein at least two distance sensors ( , , ′) that are stationary with respect to the reference surface perform measurements perpendicular to and in the direction of the first flat face of the rotational body () , wherein the distance sensors ( , , ′) transmit distances from the first flat face of the rotational body () ascertained at different points during rotation of the rotational body () to an evaluation device () , wherein , based on the distances and taking into account the rotation angle of the rotational body () , an axial perpendicularity and a rotational surface runout of the rotational body () can be ascertained in the evaluation device.2243030. The ...

CAPACITIVE MEASUREMENT DEVICE

A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance apart. The device comprises a probe having an elongated conductor, an insulating core, a conducting inner guard, an insulating interlayer, and a conducting sheath. A portion of the conductor, insulating core and conducting inner guard form a probe tip which extends beyond the insulating interlayer and conducting sheath by a predetermined offset. The probe is configured to extend from a first surface by a predetermined distance and to generate a signal when the tip is contacted by a second surface. 1. A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance , said device comprising: an elongated conductor;', 'an insulating core radially encasing at least a portion of said conductor;', 'a conducting inner guard radially encasing at least a portion of said insulating core;', 'an insulating interlayer radially encasing at least a portion of said conducting inner guard; and', 'a conducting sheath radially encasing at least a portion of said insulating interlayer,, 'at least one probe comprisingwherein a portion of said conductor, insulating core and conducting inner guard form a probe tip, said probe tip being carried by a first surface and extending a first predetermined distance from the first surface,wherein said probe is configured to generate a signal when said tip is contacted by a second surface moving relative to said probe tip to thereby indicate that the first and second surfaces are spaced less than the predetermined distance.2. The device of wherein said first surface is stationary relative to a third surface and said second surface is moving relative to said first surface.3. The device of wherein said second surface is stationary relative to a third surface and said first surface is moving relative to said second surface.4. The device of ...

Magnetic Field Sensor and Related Techniques That Provide an Angle Correction Module

A magnetic field sensor can use a variety of different current spinning phase sequences, and/or can provide an angle error value to correct errors of the magnetic field sensor. An associated method is described. 1. A magnetic field sensor , comprising:a plurality of magnetic field sensing elements, wherein each one of the plurality of magnetic field sensing elements is configured to generate a respective x-y output signal responsive to a magnetic field in an x-y plane;an angle processing circuit coupled to receive the x-y output signals and configured to generate an uncorrected x-y angle value representative of an angle of the magnetic field in an x-y plane, wherein the uncorrected x-y angle value comprises a first angle error component; andan angle error correction module coupled to the angle processing circuit and configured to generate an x-y angle value indicative of an error in the uncorrected x-y angle value; anda combining module configured to combine the uncorrected x-y angle value with the x-y angle error value to generate a corrected x-y angle value having a second angle error component smaller than the first angle error component.2. The magnetic field sensor of claim 1 , further comprising:a coefficient table memory configured to store a plurality of correction coefficients, associated with respective boundaries of a plurality of temperature segments, each temperature segment bounded by a pair of temperatures; and a segment identification module coupled to receive a temperature value representative of the temperature signal and configured to identify a temperature segment in which the temperature value falls;', 'an interpolation module coupled to receive a plurality of the correction coefficients associated with the identified temperature segment, coupled to receive the temperature value, and configured to interpolate between pairs of the correction coefficients in accordance with the temperature value to generate a plurality of interpolated correction ...

Magnetic Field Sensor and Related Techniques That Provide Varying Current Spinning Phase Sequences of a Magnetic Field Sensing Element

A magnetic field sensor can use a variety of different current spinning phase sequences, and/or can provide an angle error value to correct errors of the magnetic field sensor. An associated method is described. 1. A method of reducing an error in a magnetic field sensor , comprising:providing a plurality of magnetic field sensing elements, wherein each one of the plurality of magnetic field sensing elements is configured to generate a respective x-y output signal responsive to a magnetic field in an x-y plane;sequentially selecting, at an element selection rate with art element selection period, from among the plurality of magnetic field sensing elements, resulting in a plurality of repeating cycles of selected magnetic field sensing elements, each repeating cycle sequentially selecting all of the plurality of magnetic field sensing elements, wherein the repeating cycles repeat at a cycle repetition rate with a cycle repetition period; andcurrent spinning, within respective element selection periods, each selected one of the plurality of magnetic field sensing elements, wherein the current spinning comprises generating a respective plurality of current spinning phases within the respective element selection periods, each plurality of current spinning phases within an element selection period having a respective phase sequence with a plurality of phases, each phase having a phase period, each phase period less than an element selection period, wherein the sequentially selecting and the current spinning together result in a sequenced-chopped signal representative of an angle of the magnetic field, wherein a first set of the plurality of magnetic field sensing elements has a first current spinning phase sequence within one of the cycle repetition periods, and a second different set of the plurality of magnetic field sensing elements has a second different current spinning phase sequence within the same one of the cycle repetition periods.2. The method of claim 1 , ...

COMBINATION SENSOR

An assembly for automatically detecting contactlessly elongate objects (W). The assembly comprises an inductive measuring system (E) and a first optical measuring system (D) for the object (W) within a housing (). The inductive measuring system (E) is an eddy current sensor for determining an electromagnetic characteristic of the object (W) and has half coils (E, E) which wind around the object (W) and forms an inductive cylindrical measurement volume (Ev). The half coils (E, E), together with a capacitor (E), form a parallel oscillating circuit (E), which is connected to an electronic evaluating circuit (E). The first optical measuring system (D) determines the outside diameter (Wdo) of the object (W) and an optical disk-shaped measurement volume (DCPv) is formed between the two half coils (E, E). Optionally, the assembly, by a second optical measuring system (C), determines the color and the position by a third virtual measuring system (P). 12. An arrangement for automatic contactless detection of elongate objects (W) , comprising at least one inductive measuring system (E) and at least one first optical measuring system (D) for the object (W) in a common housing () ,{'b': 1', '1, 'i': a', 'b, 'wherein the inductive measuring system (E) is designed as an eddy current sensor for determining an electromagnetic characteristic of the object (W) and comprises two series-connected, coaxial half-coils (E, E) which are oriented in a same direction, which have a distance from one another in an axial direction, which wind around the object (W) coaxially to a longitudinal axis (x), so that an interior thereof defines an inductive cylindrical measurement volume (Ev),'}{'b': 1', '1', '2', '6', '5, 'i': a', 'b, 'the half-coils (E, E) together with an electrically parallel connected capacitor (E) form a parallel resonant circuit (E) used as inductive sensor of the inductive measuring system (E), which is connected to an electronic evaluation circuit (E), and at least one first ...

Low cost precision displacement sensor

This invention describes a small sized precision displacement sensor at sub-micron accuracy level with a cost of a fraction of those of existing commercial devices. The basic concept of the new sensor system is to apply a mechanical mechanism to magnify a sub-micron displacement to be measured by about 100 times so that the magnified displacement becomes within the measurement range of a low cost sensor such as a Hall sensor.

PRECISION-POSITIONING DRIVE PRE-TIGHTENING DEVICE

Disclosed is a precision-positioning drive end pre-tightening device, which comprises a positioning platform (), an actuator (), a capacitive sensor (), a capacitive sensor bracket (), a pre-tightening block () and a film force sensor (), wherein a sliding groove is provided in the middle of the positioning platform (), and said pre-tightening block (), said film force sensor () and said actuator () are provided in the sliding groove in sequence; the capacitive sensor bracket () is fixed on the positioning platform (), and three connecting rods (-) which are connected in sequence via compliant hinges are axially provided at one end of the bracket body of the capacitive sensor bracket (); an end surface of the capacitive sensor () and an upper side surface of the pre-tightening block () are parallel to each other, and a gap exists therebetween; and a two-stage pre-tightening device for pre-tightening the pre-tightening block () are also provided on the positioning platform (). The technical means of the device is simple and easy, and the device can satisfy the requirements in related fields of precision positioning, precision and ultra-precision machining, precision operating, precision measurement, micro-electro-mechanical system, etc. for the precision-locating drive end pre-tightening device. 1. A precision-positioning drive end pre-tightening device , characterized in that the device comprises a positioning platform , an actuator , a capacitive sensor , a capacitive sensor bracket , a pre-tightening block , a film force sensor;a sliding groove is provided in the middle of said positioning platform, and said pre-tightening block, said film force sensor and said actuator are provided in the sliding groove in sequence;said capacitive sensor bracket is fixed on the positioning platform, a middle part of the capacitive sensor bracket is opposite to the pre-tightening block; an axis of the capacitive sensor bracket and the axial direction of the sliding groove are ...

Distance measurement sensor based on magnetic signal triangulation

The subject invention reveals a distance measuring device comprising: a sensing module, a target module, and an evaluating module, wherein the sensing module and the target module are mountable so as to execute a movement with respect to each other along a movement trajectory, wherein the target module comprises a magnetic field generating element having a magnetic pole axis, wherein the sensing module comprises a first magnetic field sensing array being arranged distant to the movement trajectory. The sensing module and the target module can advantageously be situated within the pressurizable chamber of an air spring which is defined by (contained within) a first mounting plate, a second mounting plate, and a flexible member of the air spring.

FULLY INTEGRAL EPOXY CAP PROBE

A fully integral epoxy cap probe may comprise a body having a cavity disposed radially outward of a fan blade and comprising a first material, a frame disposed within the cavity and comprising a second material, a first sensor element and a ground plane disposed within the frame, the first sensor element and the ground plane comprising a third material, and a first soft lead in electronic communication with the first sensor element and the ground plane. 1. A fully integral epoxy cap probe , comprising:a body having a cavity disposed radially outward of a fan blade and comprising a first material;a frame disposed within the cavity and comprising a second material;a first sensor element and a ground plane disposed within the frame, the first sensor element and the ground plane comprising a third material; anda first soft lead in electronic communication with the first sensor element and the ground plane,wherein the second material and the third material are at least one of a resin, epoxy, and/or thermoset material.2. The fully integral epoxy cap probe of claim 1 , wherein the first material comprises at least one of a composite claim 1 , a resin claim 1 , epoxy claim 1 , and/or thermoset material.3. The fully integral epoxy cap probe of claim 2 , wherein the second material comprises at least one of a hydrophobic dielectric resin claim 2 , epoxy claim 2 , and/or thermoset material comprising bisphenol AF diglycidyl ether having fluorinated methyl groups.4. The fully integral epoxy cap probe of claim 3 , wherein the third material comprises at least one of a hydrophobic conductive resin claim 3 , epoxy claim 3 , and/or thermoset material comprising bisphenol AF diglycidyl ether having fluorinated methyl groups.5. The fully integral epoxy cap probe of claim 4 , wherein the body comprises a first passage wherein the first soft lead is disposed within the first passage.6. The fully integral epoxy cap probe of claim 5 , wherein the frame comprises a first channel aligned ...

APPARATUSES AND METHODS FOR MEASURING A CLEARANCE

The present disclosure provides an apparatus and method for measuring a clearance. The apparatus comprises: a first measurement component configured to be mounted on a first object in a mounted state thereof, so that a first measurement surface of the first measurement component is aligned with a first surface to be measured of the first object; and a second measurement component configured to be mounted on a second object in a mounted state thereof, so that a second measurement surface of the second measurement component is aligned with a second surface to be measured of the second object, wherein the first measurement component comprises a measurement instrument configured to measure a first distance between the measurement instrument and the first measurement surface and a second distance between the measurement instrument and the second measurement surface, wherein the clearance is calculated based on the first distance and the second distance. 1. An apparatus for measuring a clearance defined by a first surface to be measured of a first object and a second surface to be measured of a second object , the apparatus comprising:a first measurement component configured to be mounted on the first object in a mounted state thereof, so that a first measurement surface of the first measurement component is aligned with the first surface to be measured of the first object; anda second measurement component configured to be mounted on the second object in a mounted state thereof, so that a second measurement surface of the second measurement component is aligned with the second surface to be measured of the second object,wherein the first measurement component comprises a measurement instrument configured to measure a first distance between the measurement instrument itself and the first measurement surface of the first measurement component and a second distance between the measurement instrument itself and the second measurement surface of the second measurement ...

METHOD FOR OBTAINING A HEIGHT OF A MATERIAL STACKED IN A COKE OVEN

A method for obtaining a parameter representative of a height (H) of an upper surface of a material stacked in a coke oven with respect to a reference plane (P) is provided. The method includes the following steps: 114-. (canceled)15. A method for obtaining a parameter representative of a height of an upper surface of a material stacked in a coke oven with respect to a reference plane , comprising the following steps:providing a sensor located above the upper surface at an operation distance from the reference plane, the sensor and the material forming a capacitor having a capacitance,obtaining at least one capacitance signal representative of said capacitance,obtaining at least one distance signal using the capacitance signal, the distance signal being representative of a distance between the sensor and the upper surface along a vertical direction, andobtaining said parameter representative of the height using the distance signal and the operation distance.16. The method according to claim 15 , further comprising:measuring a parameter representative of a temperature of the sensor, andcorrecting the capacitance signal provided by the sensor in function of said parameter in order to produce the distance signal.17. The method according to claim 15 , wherein obtaining the capacitance signal includes selecting the operation distance so that the distance between the sensor and the upper surface ranges between 0 cm and 60 cm.18. The method according to claim 15 , further comprising:moving the sensor within the coke oven in a plurality of successive locations with respect to the upper surface,obtaining a plurality of distance signals, each of the distance signals being obtained in one of the successive locations, andobtaining a profile of the upper surface using the plurality of distance signals.19. The method according to claim 18 , further comprising a step of calculating a filling rate of the coke oven using the obtained profile claim 18 , wherein the filling rate is ...

Size Detection

A capacitance sensor may be positioned to detect size changes in objects. The sensor may be constructed with to use mutual capacitance or self-capacitance to detect the size changes.

Flexible Three-Dimensional Sensing Input Device

A device may include a flexible material defining an exterior of a cavity, an interior electrode located within the cavity, a first peripheral electrode peripherally located with respect to the interior electrode on a first side of the interior electrode, a second peripheral electrode peripherally located with respect to the interior electrode on a second side of the interior electrode where the interior electrode is between the first peripheral electrode and the second peripheral electrode, a controller electrically connected to the interior electrode, the first peripheral electrode, and the second peripheral electrode, and programmed instructions written into memory of the controller where the programmed instructions cause the controller, when executed to measure a first capacitance between the first peripheral electrode and the interior electrode and measure a second capacitance between the second peripheral electrode and the interior electrode.

WINDING AND SCALE CONFIGURATION FOR INDUCTIVE POSITION ENCODER

A pitch compensated inductive position encoder includes a scale comprising first and second tracks including periodic patterns having a wavelength W, a detector, and signal processing. The second track pattern may be shifted along the measuring direction by a pattern offset STO relative to the first track pattern. In the detector, first-track and second-track field generating coil portions generate fields in first and second interior areas aligned with the first and second pattern tracks, respectively. First and second sensing coil configurations that are aligned with the first and second tracks, respectively, are offset relative to one another by STO+/−0.5*W along the measuring direction. In various embodiments, the first and second sensing coil configurations may have the same sequence of individual coil polarities if the generated field polarities are different, and may have inverted or opposite sequences if the generated field polarities are the same. 1. An electronic position encoder usable to measure a relative position between two elements along a measuring axis direction that coincides with an x-axis direction , the electronic position encoder comprising:a scale extending along the measuring axis direction and including a signal modulating scale pattern comprising first and second pattern tracks arranged parallel to one another, each pattern track comprising field attenuating elements that locally attenuate a changing magnetic flux to a relatively larger degree, and field sustaining elements that locally attenuate a changing magnetic flux to a relatively smaller degree or locally enhance the changing magnetic flux, and wherein the field attenuating elements and the field sustaining elements are interleaved along the x-axis direction in a periodic pattern that has a spatial wavelength W; and a field generating coil configuration comprising at least one field generating loop fixed on a substrate, the field generating coil configuration configured to provide a ...

Series redundant capacitive sensing device

A device for capacitive detection of an object with respect to a detection surface, including:at least one capacitive detection electrode, anddetection electronics including at least one item of measurement electronic equipment, for:polarizing the at least one detection electrode at an alternating excitation potential (VG), different from a ground potential;measuring a measurement signal relative to an electrode-object capacitance; and the detection electronics also includes, for the measurement electronics, at least two separate calculation modules, operating in parallel, and supplying two independent detection signals for one and the same measurement signal originating from the measurement electronics.

Eddy Current Sensor

The present invention provides an eddy current sensor, comprising: a housing; a plurality of probes which are all disposed inside the housing, probing ends of the probes being all disposed at inner side of an exterior surface of the housing to avoid the probing ends of the probes from protruding out of the exterior surface of the housing. Because the probing ends of the plurality of probes are all located at the inner side of the exterior surface of the housing, the housing will protect the probes when the eddy current sensor is hit by an external force, thereby avoiding damage of the probes due to the impact, which reduces fault rate of the probes, enhances use reliability of the eddy current sensor, and prolongs service life of the eddy current sensor. 1. An eddy current sensor , comprising:a housing having an inner side and an exterior surface; anda plurality of probes disposed inside the housing, wherein each of the plurality of probes comprises a probing end, and wherein each of the probing ends of the plurality of probes is disposed within the inner side of the housing to avoid the probing ends of the plurality of probes from protruding out of the exterior surface of the housing.2. The eddy current sensor according to claim 1 , wherein the plurality of probes include a plurality of radial probes and the housing has an inner annular face having radial probing holes claim 1 , wherein the probing ends of the radial probes are disposed within the corresponding radial probing holes claim 1 , the probing ends of the radial probes being tangent with the inner annular face.3. The eddy current sensor according to claim 1 , wherein the housing is of an annular structure; and an annular groove is provided inside the housing claim 1 , wherein an inner wall of the housing is formed between an inner groove wall of the annular groove and an inner annular face of the housing claim 1 , the inner wall having a radial probing hole disposed therethrough along a radial direction ...

Housings for Inductive Proximity Sensors

Inductive Proximity Sensors are non-contact sensing devices used in manufacturing processes to sense metal targets. In practice, it is common for objects to contact the sensor causing the sensor to malfunction. An inductive sensor with improved durability is required. An inductive proximity sensor includes an exterior housing, an interior sensing coil and electronic circuit, and a connector. The Exterior housing is produced from one piece of metal bar, bored from one end to the tip of the other end, leaving the cylindrical tube open only on one end. The Exterior Housing is produced with an Inside Dimension that is smaller than previous proximity sensors and places the coil and electronic circuit further away from the Outside Dimension of the Exterior Housing. The interior sensing coil and electronic circuit are protected by the thick casing of the Exterior housing to improve structural rigidity and the longevity of operation in manufacturing processes. The design of the Exterior Housing has the ability to withstand extreme shear forces from contact abuse. 1. An inductive proximity sensor comprising an elongated cylindrical Exterior Housing with spaced apart ends. On one end is the sensing face , and on the other end is the connector to electrical power and output connections. The Exterior Housing is made of one piece of metal bar , bored out from one end to produce a hollow cylinder with a thick inside dimension that is meant to provide protection from contact to the Exterior Housing from damaging the inside electronic components or sensing coil. Within the hollow cylinder of the Exterior Housing is the inductive proximity sensor circuit , on one end connected to the Connector , and on the other end connected to the sensor coil. The sensor coil is placed at the end of the hollow cylinder opposite the open connector end , with no air gaps or any other annulus or material between the coil and the sensor housing. The Exterior Housing has an inside dimension that is ...

PROXIMITY SENSOR

The proximity sensor () includes a core () configured to hold a coil (), a board () on which a proximity detection circuit is mounted, and an intermediate component which is a fixing member () formed of a resin to fix the board to the core and has a conductive pattern configured to electrically connect the coil and a wiring provided on the board. 1. A proximity sensor comprising:a core configured to hold a coil;a board on which a proximity detection circuit is mounted; anda fixing member formed of a resin to fix the board with respect to the core and having a conductive pattern which electrically connects the coil and a wiring provided on the board.2. The proximity sensor according to claim 1 , wherein a connection between the fixing member and the core and a connection between the fixing member and the board are performed by press-fitting.3. The proximity sensor according to claim 2 , wherein a shape of a portion of the core which is press-fitted to the fixing member is symmetrical with respect to a central axis of the core.4. The proximity sensor according to claim 1 , wherein a hole centered on the central axis of the core is formed on a surface of the core which is in contact with the fixing member claim 1 ,the board has an end in which a cut-out portion is formed, andthe fixing member has a protruding portion which is fitted into the hole and a recessed portion which is fitted to the cut-out portion.5. The proximity sensor according to claim 1 , wherein the conductive pattern further includes a wiring which connects a ground wiring provided on the board and the core.6. The proximity sensor according to claim 1 , wherein the conductive pattern further includes a wiring which connects a shield wiring disposed on a peripheral of the board and the core. This application claims the priority benefits of Japan Patent Application No. 2017-016901, filed on Feb. 1, 2017. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and ...

DISTANCE SENSOR AND MEASUREMENT METHOD

The present invention provides a capacitive distance sensor. The sensor includes a first guard electrode, a conductor, a second guard electrode, and insulators. The conductor includes a sensor electrode and a lead portion and is arranged on a side of a measurement target with respect to the first guard electrode. The second guard electrode is arranged on the side of the measurement target with respect to the conductor. The first guard electrode includes portions overlapping the sensor electrode and the lead portion. The second guard electrode includes a portion overlapping the lead portion and does not overlap the sensor electrode. 1. A capacitive distance sensor comprising:a first guard electrode;a conductor including a sensor electrode and a lead portion extending from said sensor electrode and arranged on a side of a measurement target with respect to said first guard electrode;a second guard electrode arranged on the side of the measurement target with respect to said conductor;an insulator arranged between said first guard electrode and said conductor;an insulator arranged between said conductor and said second guard electrode,wherein said first guard electrode comprises a portion overlapping said sensor electrode and a portion overlapping said lead portion,said second guard electrode comprises a portion overlapping said lead portion, andsaid second guard electrode does not overlap said sensor electrode.2. The sensor according to claim 1 , further comprising a third guard electrode arranged so as to surround said sensor electrode.3. The sensor according to claim 1 , further comprising:an insulator arranged on an opposite side of the measurement target with respect to said first guard electrode; andan insulator arranged on the side of the measurement target with respect to said second guard electrode,wherein each insulator, said first guard electrode, said second guard electrode, and said conductor form a sheet-shaped stacked body in which said insulator, said ...

Capacitive distance sensor

A capacitive distance sensor includes a sensor element having an electrically conductive, elongated, flat sensor area which in turn contains a number of holes. The sensor area is completely surrounded by an electrically non-conductive insulating body, with the result that the insulating body completely covers the edge regions of the holes. The sensor element is produced, in particular, by first of all making the holes in the sensor area. In a subsequent step, the sensor area is completely encased by the insulating body which also completely fills the holes in the sensor area.

DEVICE AND SENSOR FOR CONTACTLESS DISTANCE AND/OR POSITION DETERMINATION OF A MEASUREMENT

. A device for the contactless distance and/or position determination of a measurement object (), with an electrically conductive measurement object () and with a sensor () operating in particular according to the inductive, capacitive or the eddy current principle, wherein the sensor () comprises a measurement device (), characterized in that the measurement device () is formed by at least two measurement elements (″) which are spatially separated from each other. Moreover, a corresponding sensor () is indicated. 111334. A device for the contactless distance and/or position determination of a measurement object () , with an electrically conductive measurement object () and with a sensor () operating in particular according to the inductive , capacitive or the eddy current principle , wherein the sensor () comprises a measurement device () ,{'b': 4', '5', '5', '5, 'characterized in that the measurement device () is formed by at least two measurement elements (, ′, ″) which are spatially separated from each other.'}25556. The device according to claim 1 , characterized in that the measurement elements ( claim 1 , ′ claim 1 , ″) are arranged on a common substrate ().36. The device according to claim 2 , characterized in that the substrate () is designed as a printed circuit board or as a preferably multilayer claim 2 , ceramic substrate.46922. The device according to claim 1 , characterized in that the substrate () comprises a passage () claim 1 , preferably for a movable object () claim 1 , in particular for an actor or a positioning element ().55559. The device according to claim 1 , characterized in that the measurement elements ( claim 1 , ′ claim 1 , ″) are arranged concentrically to each other claim 1 , in particular around the passage ().65551211. The device according to claim 1 , characterized in that the measurement elements ( claim 1 , ′ claim 1 , ″) are constructed as electrodes () or as coils ().71211. The device according to claim 6 , characterized in ...

COMBINED CAPACITIVE SENSING

A processing system comprises a sensor module and a determination module. The sensor module comprises sensing circuitry coupled to sensor electrodes of a sensor electrode pattern. The sensor module is configured to: drive a modulated signal onto a first sensor electrode of the sensor electrode pattern; receive first resulting signals from the first sensor electrode; and receive second resulting signals from a second sensor electrode of the sensor electrode pattern. The second resulting signals comprise effects corresponding to the modulated signal, and the first resulting signals and the second resulting signals are simultaneously received. The determination module configured to determine a change in capacitive coupling between an input object and the first sensor electrode based on the first resulting signals and a change in capacitive coupling between the first and second sensor electrodes based on the second resulting signals. 1. A processing system comprising: drive a modulated signal onto a first sensor electrode of said sensor electrode pattern;', 'receive first resulting signals from said first sensor electrode; and', 'receive second resulting signals from a second sensor electrode of said sensor electrode pattern, said second resulting signals comprising effects corresponding to said modulated signal, and wherein said first resulting signals and said second resulting signals are simultaneously received; and, 'a sensor module comprising sensing circuitry coupled to sensor electrodes of a sensor electrode pattern, said sensor module configured toa determination module configured to determine a capacitive coupling between an input object and said first sensor electrode based on said first resulting signals and a change in capacitive coupling between said first and second sensor electrodes based on said second resulting signals.2. The processing system of claim 1 , wherein said sensor module is further configured to drive a guarding signal on a third sensor ...

COMBINATION TOOL FOR TENSIONED FASTENERS

An apparatus for tensioning a fastener while measuring displacement of the fastener relative to a female threaded member may include a driver extension having an interior channel aligned along the extension's central cylindrical axis, open to a socket driver at an output end of the driver. The apparatus may further include a measurement probe in the interior channel, coupled to a measurement indicator on an exterior of the extension by a coupling that moves the measurement indicator in proportion to movement of the measurement probe and a measurement gauge coupled to an exterior of the driver extension that gauges displacement of the measurement indicator. A method for using the apparatus includes driving a female threaded member along a threaded rod by the driver extension while holding the measurement probe against an end of a bolt, screw, or other threaded fastener of which the threaded rod forms a part and while reading the measurement gauge. 1. An apparatus for tensioning a fastener while measuring displacement of the fastener relative to a female threaded member , the apparatus comprising:a driver extension having an interior channel aligned along the driver extension's central cylindrical axis, open to a socket driver at an output end of the driver extension;a measurement probe in the interior channel, coupled to a measurement indicator on an exterior of the driver extension by a coupling that moves the measurement indicator in proportion to movement of the measurement probe; anda measurement gauge coupled to an exterior of the driver extension that gauges displacement of the measurement indicator.2. The apparatus of claim 1 , further comprising a pair of bearings fitted to the shaft and holding the measurement gauge there between.3. The apparatus of claim 1 , wherein the measurement indicator comprises one of a linear gauge or a dial indicator.4. The apparatus of claim 1 , wherein the coupling comprises a positioning bracket for holding the measurement ...

ABSOLUTE POSITION DETECTION SYSTEM HAVING A SINGLE-TRACK MAGNETIC CODE TAPE

A sensor arrangement for an absolute measuring position detection system based on a magnetic code object has a substantially linear arrangement of magnetic field sensors, wherein a bit pattern encoded on a single-track magnetic code object having a uniform bit length is readable by the magnetic field sensors. In the case of a position detection system having the sensor arrangement, the values of magnetic bits are detected in the range of a detected bit sequence and the position of each 0→1 and 1→0 bit transition along a longitudinal axis of a code object is determined from the detected bit values. 1100105110107108. A sensor arrangement () for an absolute measuring position detection system based on a magnetic code object () , comprising a substantially linear arrangement of a plurality of magnetic field sensors () , wherein a bit pattern ( , ) encoded on a single-track magnetic code object having a uniform bit length is readable by means of the magnetic field sensors.2110. The sensor arrangement according to claim 1 , wherein the magnetic field sensors () form a high spatial resolution sensor arrangement of sensor elements magnetically detecting in at least two spatial directions.3110125. The sensor arrangement according to claim 1 , wherein the magnetic field sensors () are arranged with varying distances from each other () in a substantially linear manner.4110115120. The sensor arrangement according to claim 1 , wherein the magnetic field sensors () are arranged on a sensor head comprising a measuring unit and digital signal processing unit and a digital communication interface .5100105. The position detection system having a sensor arrangement () according to claim 1 , wherein the values of magnetic bits are detected in the range of a detected bit sequence and the position of each 0→1 and 1→0 bit transition along a longitudinal axis of a code object () is determined from the detected bit values.6105130100. The position detection system according to claim 5 , ...

Magnetic detection method

A computing device includes a first component comprising a magnetic field sensor with a sensing region and a second component comprising a magnetic portion. The computing device also includes a controller communicatively coupled to the magnetic field sensor. In the computing device, the second component is movable between a first position relative to the first component, and one or more second positions relative to the first component, whereby the magnetic portion is positioned in the sensing region when the sensing portion is in the first position. The magnetic field sensor is configured for generating one or more first signals in response to detecting the magnetic portion within the sensing region. The controller is configured for generating a second signal in response to the first signals indicating the second component is in the first position.

Control system for an agricultural implement

An orientation control system for an agricultural implement includes a first sensor configured to emit a first output signal toward a soil surface and to receive a first return signal indicative of a first height of a first portion of a frame. The orientation control system also includes a second sensor configured to emit a second output signal toward the soil surface and to receive a second return signal indicative of a second height of a second portion of the frame. In addition, the orientation control system includes a first actuator, a second actuator, and a controller configured to control the first and second actuators such that a difference between the first height and a first target height is less than a first threshold value and a difference between the second height and a second target height is less than a second threshold value.

PROXIMITY SENSOR

A proximity sensor includes: a substrate; a first shield electrode disposed on a front surface of the substrate; a first detection electrode disposed on the front surface of the substrate, in a region surrounding the first shield electrode, the first detection electrode being electrically insulated from the first shield electrode and having an outer perimeter that is polygonal; a drive unit supplied with power, connected to the first shield electrode and the first detection electrode, and configured to apply voltage that equalizes an electric potential of the first shield electrode and an electric potential of the first detection electrode; and a detection unit configured to detect a change in capacitance in the first detection electrode. 1. A proximity sensor , comprising:a substrate;a first shield electrode disposed on a front surface of the substrate;a first detection electrode disposed on the front surface of the substrate, in a region surrounding the first shield electrode, the first detection electrode being electrically insulated from the first shield electrode and having an outer perimeter that is polygonal;a drive unit supplied with power, connected to the first shield electrode and the first detection electrode, and configured to apply voltage that equalizes an electric potential of the first shield electrode and an electric potential of the first detection electrode; anda detection unit configured to detect a change in capacitance in the first detection electrode.2. The proximity sensor according to claim 1 , further comprising a second shield electrode disposed on a rear surface of the substrate opposite the front surface of the substrate.3. The proximity sensor according to claim 2 , wherein in a plan view of the front surface of the substrate claim 2 , the second shield electrode does not extend beyond the outer perimeter of the first detection electrode.4. The proximity sensor according to claim 1 , wherein the outer perimeter of the first detection ...

SENSOR ASSEMBLY FOR ROTATING DEVICES AND METHODS FOR FABRICATING

A sensor assembly is described herein. The sensor assembly includes a housing that includes an inner surface that defines a cavity within the housing, and a proximity sensor positioned within the cavity. The proximity sensor includes a first connector, a second connector, and a substantially planar sensing coil that extends between the first connector and the second connector. The sensing coil extends outwardly from the first connector such that the second connector is radially outwardly from the first connector. 116-. (canceled)17. A method of fabricating a sensor assembly for use with a device , said method comprising:depositing a photoresist material across an outer surface of a sensing coil substrate material;developing a photoresist pattern on the sensing coil substrate material with a shape that is substantially similar to a shape of a proximity sensor that includes a first connector, a second connector, and a substantially planar sensing coil that extends between the first connector and the second connector; andetching the sensor substrate material to form a proximity sensor.18. The method of claim 17 , further comprising forming the sensing coil substrate material including one of a titanium and a superalloy.19. The method of claim 17 , further comprising:forming a housing including a cavity sized to receive the sensing coil therein; andinserting the sensing coil into the housing cavity to form the proximity sensor.20. The method of claim 17 , further comprising forming the sensing coil including a substantially spiral shape extending between the first connector and the second connector such that the second connector is oriented radially outwardly from the first connector.21. The method of claim 17 , wherein the planar sensing coil is configured to operate in environments that include operating temperatures within a temperature range of −200° C. to 1000° C. This application is a Continuation of U.S. application Ser. No. 13/205,371 (now U.S. Pat. No. 9,932, ...

Position measuring device and method for determining positions of a measurement object

In a position measuring device () and a method for ascertaining positions of an object () to be measured, at least one capacitive position measuring sensor () provides a position measurement signal (P) relating to the object () to be measured and at least one capacitive reference measurement sensor () provides a reference measurement signal (R). The measuring sensors () are connected to a computing unit () which is embodied to calculate a position signal (P) to ascertain the positions from the position measurement signal (P) and the reference measurement signal (R). As a result of interfering influences being contained substantially equally in the position measurement signal (P) and the reference measurement signal (R) as an interference signal (S), it is possible to determine and eliminate the interference signal (S) during the calculation. 1. A position measuring device , comprising:{'sub': 'M', 'at least one capacitive position measuring sensor configured to provide a position measurement signal (P) relating to an object being measured,'}{'sub': 'M', 'at least one capacitive reference measuring sensor configured to provide a reference measurement signal (R),'} said computing unit being connected to the at least one position measuring sensor and the at least one reference measuring sensor and', {'sub': M', 'M, 'said computing unit being embodied such that a position signal (P) is calculated for ascertaining the position from the position measurement signal (P) and from the reference measurement signal (R),'}], 'a computing unit programmed to ascertain a position of the object being measured,'}wherein the at least one reference measuring sensor comprises a first reference electrode and a second reference electrode, said reference electrodes being arranged at a carrier body,{'sup': '−8', 'wherein the carrier body consists of a material which has a coefficient of thermal expansion α at a temperature of 20° C., for which: |α|≦10.10/K, and'}wherein the computing unit ...

Systems And Methods For Detecting Battery System Swelling In Information Handling Systems

Systems and methods may be implemented separately from (and external to) a battery system to detect swollen battery system components within a chassis enclosure of the information handling system, without any physical contact with the battery cells or battery system, and without requiring premature opening of the information handling system chassis enclosure to inspect for battery system swelling. A system user may be automatically warned of detected battery system swelling and/or battery system charging may be automatically terminated upon detected battery system swelling so that information handling system failure and/or system service costs that would otherwise be expended to repair damage caused by swollen battery system components may be prevented. 1. A method , comprising detecting swelling of a battery system contained within a chassis enclosure of an information handling system without physically contacting the battery , the method further comprising:sensing a proximity of the battery system to a first location within the chassis enclosure, the first location being separate from and external to the battery system;detecting swelling of the battery system by determining if the sensed proximity of the battery system indicates existence of battery system swelling; andtaking at least one first action only upon determining swelling of the battery system exists, and not taking the at least one first action if no swelling of the battery system is determined to exist.2. The method of claim 1 , where the first action comprises at least one of automatically providing an alarm to a system user or automatically terminating charging of the battery system.3. The method of claim 1 , where the first location is spaced apart from the battery system within the chassis enclosure; and where the sensing comprises using at least one capacitive proximity sensor at the first location to sense physical proximity of the battery system to the capacitive proximity sensor.4. The method ...

DISTANCE MEASUREMENT SENSOR BASED ON MAGNETIC SIGNAL TRIANGULATION

The subject invention reveals a distance measuring device comprising: a sensing module, a target module, and an evaluating module, wherein the sensing module and the target module are mountable so as to execute a movement with respect to each other along a movement trajectory, wherein the target module comprises a magnetic field generating element having a magnetic pole axis, wherein the sensing module comprises a first magnetic field sensing array being arranged distant to the movement trajectory. The sensing module and the target module can advantageously be situated within the pressurizable chamber of an air spring which is defined by (contained within) a first mounting plate, a second mounting plate, and a flexible member of the air spring. 1. A distance measuring device comprising:a target module;an evaluating module;a first directional magnetic field sensing array; anda second directional magnetic field sensing array,wherein the first directional magnetic field sensing array and the second directional magnetic field sensing array are separated by a predetermined horizontal distance forming a horizontal axis,wherein the second directional magnetic field sensing array and the first directional magnetic field sensing array do not move relative to each other and wherein the target module move along a movement trajectory that is along a vertical axis that is perpendicular to the horizontal axis between first directional magnetic field sensing array and the second directional magnetic field sensing array,wherein an angle between the movement trajectory and the horizontal axis is substantially orthogonal,wherein the first directional magnetic field sensing array and the second directional magnetic field sensing array sense signals from the target module, the signals being transferred to the evaluating module, andwherein the evaluating module is adapted to determine the distance the target module is from the horizontal axis by determining a directional angle of the ...

APPARATUS AND METHOD FOR SURFACE TRAVERSING WITH CAPACITIVE SENSING OF SURFACE

Apparatuses, methods and storage media associated with surface traversing by robotic apparatuses using capacitive sensing are described herein. In some instances, the apparatus comprises a body having at least one edge that faces a direction of traverse of a surface by the apparatus, and at least one capacitive probe disposed on or in proximity to the edge, to detect, during the traverse of the surface, a change in a dielectric property of a portion of the surface proximate to the edge. The dielectric property change indicates an obstacle associated with the surface portion. The apparatus further comprises circuitry configured to process the readings provided by the probe, such as to identify the obstacle, and generate instructions to adjust the traversing of the surface by the apparatus, based at least in part on a result of the probe readings processing. Other embodiments may be described and claimed. 1. An apparatus for surface traversing , comprising:a body having at least one edge that faces a direction of traverse of a surface by the apparatus, andat least one capacitive probe disposed on or in proximity to the at least one edge, to detect, during the traverse of the surface, a change in a dielectric property of a portion of the surface proximate to the at least one edge, wherein the dielectric property change indicates an obstacle associated with the surface portion.2. The apparatus of claim 1 , further comprising a stabilizer attached to the body on or in proximity to the at least one edge claim 1 , wherein the probe is coupled to the stabilizer claim 1 , wherein the stabilizer is to keep the probe at a substantially constant distance from the surface during the surface traverse.3. The apparatus of claim 1 , wherein the body includes an area underneath the body proximate to the edge claim 1 , wherein the at least one capacitive probe is disposed in the area underneath the body.4. The apparatus of claim 1 , wherein the capacitive probe is disposed ...

CONTROL SYSTEM

The invention relates to a control system for driving a motorized closure element of a motor vehicle, wherein, in order to detect operator control events, at least one sensor control means and at least one elongate distance sensor which extends along a sensor extent are provided, wherein the sensor control means drives the associated distance sensor and/or evaluates the sensor signals from said distance sensor, and wherein the distance sensor detects a distance from a user. It is proposed that, with the control system installed, a vehicle component is arranged or can be arranged in or along the sensor extent, and that the distance sensor is designed such that it has a blind section in the region of the vehicle component, said blind section having no sensitivity or a lower level of sensitivity compared to that region of the distance sensor which adjoins the blind section. 1. A control system for driving a motorized closure element of a motor vehicle , wherein , in order to detect operator control events , at least one sensor control means and at least one elongate distance sensor which extends along a sensor extent are provided , wherein the sensor control means drives the associated distance sensor and/or evaluates the sensor signals from said distance sensor , and wherein the distance sensor detects a distance from a user , wherein , with the control system installed , a vehicle component is arranged or can be arranged in or along the sensor extent , and in that the distance sensor is designed such that it has a blind section in the region of the vehicle component , said blind section having no sensitivity or a lower level of sensitivity compared to that region of the distance sensor which adjoins the blind section and in that , owing to the blind section the vehicle component cannot be detected by the distance sensor and does not cause any interference in the detection of the distance from a user by sensor.2. (canceled)3. The control system as claimed in claim 1 , ...

METHOD, DEVICES AND SYSTEMS FOR DETECTING AN ATTACHMENT OF AN ELECTRONIC PATCH

An electronic sensor patch includes a capacitive sensor configured to detect when the electronic sensor patch is applied to a patient. A processor may be powered down for a predetermined time interval in response to determining that the electronic patch is not in close proximity to a body. The electronic sensor patch may be activated in response to determining that the electronic patch is in close proximity to the body. The capacitance sensor may be used to determine whether the electronic sensor patch is in close proximity to a body by measuring capacitance of the capacitance sensor, comparing the measured capacitance to a threshold, and determining that the electronic sensor patch is in close proximity to a body in response to the measured capacitance of the capacitance sensor being more than the threshold. 1. A method of activating an electronic sensor patch configured to be applied to a patient , comprising:using a capacitance sensor to determine whether the electronic sensor patch is in close proximity to a body;powering down a processor of the electronic sensor patch to a low-power mode for a predetermined time interval in response to determining that the electronic sensor patch is not in close proximity to a body; andactivating the electronic sensor patch in response to determining that the electronic sensor patch is in close proximity to the body.2. The method of claim 1 , wherein using a capacitance sensor to determine whether the electronic sensor patch is in close proximity to a body comprises:measuring a capacitance of the capacitance sensor;comparing the measured capacitance of the capacitance sensor to a threshold; anddetermining that the electronic sensor patch is in close proximity to a body in response to the measured capacitance of the capacitance sensor being more than the threshold.3. The method of claim 1 , wherein using a capacitance sensor to determine whether the electronic sensor patch is in close proximity to a body comprises:energizing the ...

WATER REJECTION ON CAPACITIVE DOOR HANDLE

A system and method that provides a proximity sensor disposed within a door handle of a vehicle to enable one or more commands to be transmitted to the vehicle by a user's hand, wherein the door handle is in a harsh outdoor environment such that the door handle may be wet when the proximity sensor is used to detect the touch or presence of a user's hand, and wherein the proximity sensor is able to compensate for the presence of the water and enable reliable operation of the proximity sensor and thereby enable commands to be sent to the vehicle. 1. A system for providing a door handle proximity sensor that includes water protection , said system comprised of: a proximity sensor substrate having an electrode side;', 'a first layer comprised of two different electrodes, the first electrode being at least one bottom layer electrode for providing a drive signal, and the second electrode being at least one carbon electrode and not in contact with the at least one bottom layer electrode;', 'a non-conductive coating over the first layer;', 'a second layer comprised of a third electrode being at least one top layer electrode disposed on the non-conductive coating, wherein the first layer and the second layer are parallel and coplanar on the proximity sensor substrate;', 'a proximity controller for generating drive signals that are transmitted to the first electrode and for receiving signals from the second electrode, and for generating a ground or a positive signal on the third electrode; and, 'a door handle proximity sensor comprised ofa door handle that functions as a housing for the door handle proximity sensor.2. The system as defined in wherein the system is further comprised of a rigid proximity sensor substrate.3. The system as defined in wherein the system is further comprised of a flexible proximity sensor substrate.4. The system as defined in wherein the system is further comprised of:the first electrode functioning as a drive electrode;the second electrode ...

HEART RATE DETECTION METHOD AND WEARABLE DEVICE

Provided are a heart rate detection method and a wearable device. The wearable device includes a casing, a processor installed in the casing, and an optical heart rate sensing module and a distance sensing module connected to the processor and installed on a side of the casing facing a wearing part of a user. The method includes: detecting, by the distance sensing module, a positional relationship between the optical heart rate sensing module and the wearing part of the user to obtain relative position data of the optical heart rate sensing module relative to the wearing part of the user; and adjusting a signal transmission power of the optical heart rate sensing module according to the relative position data, and detecting, by the optical heart rate sensing module, a heart rate of the user. 1. A heart rate detection method , which is applied to a wearable device , wherein the wearable device comprises a casing , a processor installed in the casing , and an optical heart rate sensing module and a distance sensing module connected to the processor and installed on a side of the casing facing a wearing part of a user;the method comprising:detecting, by the distance sensing module, a positional relationship between the optical heart rate sensing module and the wearing part of the user to obtain relative position data of the optical heart rate sensing module relative to the wearing part of the user; andadjusting a signal transmission power of the optical heart rate sensing module according to the relative position data, and detecting, by the optical heart rate sensing module, a heart rate of the user.2. The method according to claim 1 , wherein the distance sensing module comprises a plurality of capacitive sensors claim 1 , the optical heart rate sensing module is installed at a central position on the side of the casing facing the wearing part of the user claim 1 , and the plurality of capacitive sensors surround a periphery of the optical heart rate sensing module at ...

CAPACITIVE IMAGING DEVICE WITH ACTIVE PIXELS AND METHOD

A capacitive image sensor includes a sensor array having capacitive image pixels. Each pixel has a two-transistor configuration including a pixel selection transistor and a source follower transistor. The pixel selection transistor activates the source follower transistor. The source follower is coupled to a variable capacitance that affects an input impedance of the source follower. An AC current is source is used to interrogate the activated source follower to determine an output impedance of the source follower. The output impedance is a function of the input impedance and the output impedance is representative of the nearness of an object. 1. A capacitive image pixel , comprising:a two-transistor configuration having a pixel selection transistor that activates a source follower transistor, wherein the source follower transistor is coupled to a variable capacitance affecting an input impedance of the source follower transistor and wherein an AC current source is used to interrogate the activated source follower transistor to determine an output impedance of the source follower transistor, wherein the output impedance is a function of the input impedance, and wherein the output impedance is representative of the nearness of an object.2. The capacitive image pixel of claim 1 , wherein the variable capacitance varies in accordance with the nearness of the object claim 1 , wherein the object is affective in altering capacitance.3. The capacitive image pixel of claim 1 , further comprising a DC current source.4. The capacitive image pixel of claim 3 , wherein the DC current source sets a working bias point.5. The capacitive image pixel of claim 1 , wherein the AC current source provides a known amplitude and frequency.6. The capacitive image pixel of claim 1 , wherein the capacitive image pixel is implemented with thin film technology.7. The capacitive image pixel of claim 1 , wherein the AC current source provides a sinusoidal signal or a square-wave signal.8. A ...

INDUCTIVE POSITION DETECTOR

An inductive position detector with a first and second body, at least one of said bodies being displaceable relative to the other along a measurement path wherein said first body comprises one or more antenna windings forming a first arrangement of windings and said second body comprises a passive resonant circuit incorporating one or more target windings in series with a capacitor; said circuit covering at least in part said first arrangement; characterized in that said first body comprises an additional winding arrangement disposed along at least part of said measurement path; said additional winding arrangement being spaced from said first arrangement of windings; and said second body comprises an additional winding arrangement covering at least in part said additional winding arrangement of said first body. 122-. (canceled)23. An inductive position detector with a first and a second body which are displaceable relative to one another along a measurement pathwherein said first body comprises:at least first and second antenna winding arrangements, each of said antenna winding arrangements defining a plurality of adjacent receive winding loops extending in the direction of the measurement path,and wherein said second body comprises:a passive resonant circuit incorporating at least first and second target winding arrangements in series with a capacitor, said second target winding arrangement defining a plurality of adjacent winding loops extending in the direction of the measurement path; said first and second antenna winding arrangements and said first and second target winding arrangements both being spaced apart orthogonally of said measurement path so as to be separate, and said first and second bodies being disposed so that first and second target winding arrangements cover at least a part of first and second antenna winding arrangements respectively;wherein said first antenna winding arrangement further includes a transmit winding,the receive winding loops of ...

SYSTEM AND METHODS FOR DETERMINING BLADE CLEARANCE FOR ASYMMERTIC ROTORS

A system and methods are provided for determining blade clearance for asymmetrical rotors. In one embodiment, a method includes detecting displacement data of a rotor blade coupled to a shaft, receiving tachometer data determined for rotation speed of the shaft, and resampling the displacement data of the rotor blade based on the tachometer data. Resampling may include sampling the displacement data at constant increments of shaft rotation. The method may also include determining blade clearance based on the resampled displacement data. 1. A method for determining blade clearance for asymmetrical rotors , the method comprising the acts of:detecting displacement data of a rotor blade coupled to a shaft;receiving tachometer data determined for rotation speed of the shaft;resampling the displacement data of the rotor blade based on the tachometer data, wherein resampling includes sampling the displacement data at constant increments of shaft rotation; anddetermining blade clearance based on the resampled displacement data.2. The method of claim 1 , wherein the displacement data for the rotor blade includes blade length measurement data.3. The method of claim 1 , wherein displacement data for the rotor blade is instantaneous displacement data of the rotor blade determined by a capacitive sensor.4. The method of claim 1 , wherein the tachometer data is determined by a tachometer producing pulses at regular intervals.5. The method of claim 1 , wherein angular resampling generates a resampled waveform for each revolution of the rotor blade based ondetermining zero up-crossings for the tachometer data,determining an angle of shaft of interest at each up-crossing,interpolating up-crossing angles to find shaft angle at all original sample times, andinterpolating the signal at equal angular increments.6. The method of claim 1 , further comprising computing a moving synchronous average to produce a time domain representation of the displacement signal over one shaft rotation ...

High sensitivity inductive sensor for measuring blade tip clearance

A high sensitivity inductive sensor for measuring clearance of a rotating blade tip includes a one or more of sensing coils. The sensing coils are formed of magnet wire, which is wound to form planar spiral coils. Each of the coils are coupled in series with a function generator, which applies an excitation signal thereto. Accordingly, based on the change in impedance of the coils, a clearance measurement, which identifies the distance between the coil and the tip of the rotating blade can be obtained using predetermined calibration curve values.

WINDING AND SCALE CONFIGURATION FOR INDUCTIVE POSITION ENCODER

A pitch compensated inductive position encoder includes a scale comprising first and second tracks including periodic patterns having a wavelength W, a detector, and signal processing. The second track pattern may be shifted along the measuring direction by a pattern offset STO relative to the first track pattern. In the detector, first-track and second-track field generating coil portions generate fields in first and second interior areas aligned with the first and second pattern tracks, respectively. First and second sensing coil configurations that are aligned with the first and second tracks, respectively, are offset relative to one another by STO+/−0.5*W along the measuring direction. In various embodiments, the first and second sensing coil configurations may have the same sequence of individual coil polarities if the generated field polarities are different, and may have inverted or opposite sequences if the generated field polarities are the same. 1. An electronic position encoder usable to measure a relative position between two elements along a measuring axis direction that coincides with an x-axis direction , the electronic position encoder comprising:a scale extending along the measuring axis direction and including a signal modulating scale pattern comprising first and second pattern tracks arranged parallel to one another, each pattern track comprising field attenuating elements that locally attenuate a changing magnetic flux to a relatively larger degree, and field sustaining elements that locally attenuate a changing magnetic flux to a relatively smaller degree or locally enhance the changing magnetic flux, and wherein the field attenuating elements and the field sustaining elements are interleaved along the x-axis direction in a periodic pattern that has a spatial wavelength W; and a field generating coil configuration comprising at least one field generating loop fixed on a substrate, the field generating coil configuration configured to provide a ...

SINGLE-ELEMENT DOOR/WINDOW OPENING DETECTOR

A door/window opening detector including an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, the second resonant frequency being different from the first resonant frequency, the antenna having the first resonant frequency when in proximity to a door/window having a given dielectric constant and the second resonant frequency when not in proximity to a door/window having the given dielectric constant, and an alarm indication generator operable, in response to receiving an indication that a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency, for generating an alarm indication of opening of the door/window. 1. An article proximity indicator , comprising:an antenna having a first resonant frequency when in a proximity to an article with a given dielectric constant and having a second resonant frequency when not in the proximity to the article;a high-frequency detector operable for generating a direct electrical current corresponding to an intensity of a reflected electromagnetic signal received from the antenna;an analog to digital converter operable for converting the direct electrical current received from the high-frequency detector into a digital value corresponding to the intensity of the reflected electromagnetic signal; and ascertaining, based on the digital value received from the analog to digital converter, whether a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency; and', 'generating, in response to the resonant frequency having changed from the first resonant frequency to the second resonant frequency, an indication indicating that the antenna is not in the proximity to the article., 'a proximity indication generator operable for2. The article proximity indicator of claim 1 , further comprising:a high-frequency oscillator operable for generating a high-frequency oscillating ...

METHOD OF OPERATING A CAPACITIVE PROXIMITY SENSOR AND CAPACITIVE PROXIMITY SENSOR

During operation of a capacitive proximity sensor that is provided with at least two measuring electrodes, a first capacitance measurement variable and a second capacitance measurement variable are detected. The first capacitance measurement variable is correlated with the capacitance of at least one of the measuring electrodes to earth, while the second capacitance measurement variable is correlated with the capacitance between at least one of the measuring electrodes and at least one further measuring electrode. A change in the first capacitance measurement variable is evaluated together with a synchronous signal profile of the second capacitance measurement variable in order to distinguish a proximity of a conductor coupled electrically to earth from the proximity of dielectric matter. In this manner, a body part passing into the detection space of the proximity sensor can be distinguished effectively from other substances and objects, particularly water.

Fingerprint sensing panel and fingerprint sensor thereof

A fingerprint sensing panel and a fingerprint sensor thereof are provided. The fingerprint sensor includes first to third switches, a first capacitor, an impedance variation element and a sensing circuit. The first switch receives a system high voltage and is controlled by a pre-charge signal. The first capacitor is coupled between the first switch and a reference voltage. The impedance variation element is coupled between the first switch and the reference voltage, and an impedance value of the impedance variation element is changed according to a vertical distance between the impedance variation element and a skin surface. The second switch receives the system high voltage. The third switch receives a read signal. The sensing circuit is coupled to the third switch and provides a fingerprint determination voltage.

Tilt-Tolerant Linear Displacement Sensor

A linear displacement sensor includes an induction element, measuring sensor element, and correction sensor element. The induction element has a first side with an electrically conductive measuring track running along a measurement path. The measuring sensor element is positioned over the first side, is movable relative to the induction element along the path, and includes a measuring coil positioned over the measuring track such that an overlap between the measuring coil and the measuring track changes along the path so that an induction of the measuring coil is dependent on a position of the measuring coil on the path. A second side of the induction element has an electrically conductive correction track running along the path. The correction sensor element is rigidly connected to the measuring sensor element, is positioned over the second side, and has a correction coil with a constant overlap with the correction track along the path. 1. A linear displacement sensor , comprising: a first side having an electrically conductive measuring track that runs along a measurement path; and', 'a second side having at least one electrically conductive correction track that runs along the measurement path;, 'an induction element, includinga measuring sensor element that is positioned over the first side of the induction element, that is movable relative to the induction element along the measurement path, and that includes a measuring coil positioned over the measuring track such that an overlap between the measuring coil and the measuring track changes along the measurement path so that an induction of the measuring coil is dependent on a position of the measuring coil on the measurement path; anda correction sensor element that is connected rigidly to the measuring sensor element, that is positioned over the second side of the induction element, and that includes at least one correction coil having an overlap with the at least one correction track that is constant along ...

An Interdigitated Capacitive Proximity Sensor with Varied Space Electrode Structure

Embodiments related to a capacitive proximity sensor with a variable spacing electrode structure, which is suited to a non-destructive testing operation, such as the detection of dielectric properties of the polymer materials with a thickness decreases gradually structure. The designed sensor includes a driving electrode, a sensing electrode, a substrate, a guarding electrode and a lead connector. The driving and sensing electrodes include several interdigitated fingers, which are arranged alternately in sequence, based on the characteristic of the thickness decreases gradually structure of the MUT, the width of the electrodes and spacing between two adjacent electrodes in each unit are optimized individually. Namely, under the condition of ensuring penetration depth, the electrode width is made as large as possible to achieve maximum signal strength and detection sensitivity. Compared with the traditional ES-IDE structure capacitive proximity sensor, the newly designed VS-IDE capacitive sensor increases the effective electrode area, which increases the signal strength and measurement sensitivity directly. Besides, the electric field lines of the designed sensor are confined within the thickness gradually changed materials under test mostly as expected simultaneously. 2. The sensor of claim 1 , further comprising:a VS-IDE structure, wherein the substrate is a kind of insulation material with a certain strength and stiffness to support the electrode and guarding layer, a hole is drilled on substrate for the purpose to lead the driving electrode and sensing electrode to the reverse side of the substrate.3. (canceled) This application is a national stage application of International application number PCT/CN2016/082195, filed May 16, 2016, titled “An Interdigitated Capacitive Proximity Sensor with Varied Space Electrode Structure,” which claims the priority benefit of Chinese Patent Application No. 201510639121.5, filed on Sep. 29, 2015, which is hereby incorporated by ...

CURRENT SUBTRACTION CIRCUITRY

An electronic device may include a sensing circuit and a current subtraction circuit. The sensing circuit may output first and second current signals. The current subtraction circuit may mirror the first and second current signals onto first and second current branches. The second current branch may be split into a first sub-path and a second sub-path. An amplifier may control the amount of current flowing through the second sub-path by forcing the current flowing through the first current branch and the current flowing through the first sub-path to be identical. Configured in this way, the current flowing through the second sub-path will be equal to the difference between the first and second current signals. The current flowing through the second sub-path may be optionally amplified using another current mirror. 1. Circuitry , comprising:a first current branch configured to convey a first current amount;a second current branch configured to convey a second current amount, wherein the second current branch splits into first and second sub-branches; andan amplifier circuit configured to force the first current amount through the first sub-branch such that the second sub-branch conveys an amount of current that is equal to the difference between the first and second current amounts.2. The circuitry of claim 1 , wherein the first current branch comprises a first transistor of a first channel type claim 1 , wherein the first sub-branch comprises a second transistor of the first channel type claim 1 , wherein the second sub-branch comprises a third transistor of the first channel type claim 1 , wherein the second and third transistors are connected in parallel claim 1 , and wherein the sum of the current flowing through the second and third transistors is equal to the second current amount.3. The circuitry of claim 2 , wherein the third transistor has a gate terminal claim 2 , and wherein the amplifier circuit has an output that is connected to the gate terminal of the ...

SENSOR COMBINATION

A sensor system includes a housing having a front surface and a rear surface. The housing defines a bore that extends from the front surface toward the rear surface and that includes one or more lenses. The housing includes an image sensor adjacent at least a first lens and that is aligned with the bore. The system includes a proximity-sensing device mounted on the front surface of the housing. The system further includes a conductor element shared by the proximity-sensing device and the image sensor. The conductor element provides an electrical connection between (i) at least one circuit board of an electronic device and (ii) the proximity-sensing device and the image sensor. 1. A sensor system , comprising:a housing having a front surface and a rear surface, the housing defining a bore that extends from the front surface toward the rear surface;one or more lenses located within the bore;an image sensor adjacent at least a first lens, the image sensor being aligned with the bore;a proximity-sensing device mounted on the front surface of the housing; anda conductor element that provides an electrical connection between (i) at least one circuit board of an electronic device and (ii) the proximity-sensing device and the image sensor.2. The sensor system of claim 1 , wherein the proximity-sensing device comprises at least one transceiver that:(i) transmits a first wireless signal; and(ii) receives a second wireless signal to detect presence of an object relative to the sensor system, the second wireless signal being received in response to transmission of the first wireless signal and being associated with the first wireless signal.3. The sensor system of claim 2 , wherein the at least one transceiver of the proximity-sensing device is:disposed at least partially in a first depression of the housing; andlaterally offset from an axis that is traverse at least a second lens of the one or more lenses located in the bore.4. The sensor system of claim 1 , wherein the ...

WIRELESS COMMUNICATION MODULE AND WIRELESS COMMUNICATION DEVICE

To provide a wireless communication module that implements the function to detect a human body in a conserved space and is capable of detecting a proximity to human bodies with high accuracy. A wireless communication module includes an antenna unit and a proximity detector which detects that a human body has approached the module. The antenna unit includes an antenna and a first filter which is comprised of distributed constant elements. The proximity detector for human bodies uses the antenna and the first filter as an electrode to detect capacitance. 1. A wireless communication module comprising:an antenna unit; anda proximity detector which detects that a human body has approached the module,the antenna unit comprising:an antenna; anda first filter which is comprised of distributed constant elements,wherein the proximity detector uses the antenna and the first filter as an electrode to detect capacitance.2. The wireless communication module according to claim 1 , further comprising a radio control unit claim 1 ,the radio control unit comprising:an arithmetic processor;a transceiver which performs wireless communication through the antenna under control of the arithmetic processor; anda halt controller,wherein the halt controller controls an active state of at least one of the arithmetic processor and the transceiver, based on a result of detection by the proximity detector for human bodies.3. The wireless communication module according to claim 2 , further comprising:a first oscillator which oscillates a first clock signal with a first frequency; anda second oscillator which oscillates a second clock signal with a second frequency which is higher than the first frequency,wherein the arithmetic processor and the transceiver operate on the second clock signal, andwherein the halt controller operates on the first clock signal.4. The wireless communication module according to claim 3 , wherein the proximity detector for human bodies detects a change in capacitance of ...

MULTI-MODE SENSOR

A multi-mode sensor includes an inductive sensor module configured to measure a first physical quantity based on magnetic induction. The inductive sensor module includes a coil wound around a coil axis. A non-inductive sensor module is provided to measure a second physical quantity using a non-inductive sensing mode. A portion of the non-inductive sensor module is radially inward of a portion of the coil relative to the coil axis. 1. A multi-mode sensor , comprising:an inductive sensor module configured to measure a first physical quantity based on magnetic induction, the inductive sensor module comprising a coil wound around a coil axis; anda non-inductive sensor module configured to measure a second physical quantity using a non-inductive sensing mode, wherein:a portion of the non-inductive sensor module is radially inward of a portion of the coil relative to the coil axis.2. The sensor of claim 1 , wherein the portion of the non-inductive sensor that is radially inward of the portion of the coil overlaps when viewed in a radial direction with the portion of the coil.3. The sensor of claim 1 , wherein all of the portion of the non-inductive sensor module that is radially inward of the portion of the coil is non-metallic.4. The sensor of claim 1 , wherein:the portion of the non-inductive sensor that is radially inward of the portion of the coil overlaps when viewed in a radial direction with the portion of the coil; andall of the overlapping region of the portion of the non-inductive sensor is non-metallic.5. The sensor of claim 1 , wherein the non-inductive sensor module is configured to perform an optical measurement.6. The sensor of claim 5 , wherein the non-inductive sensor module comprises a probe unit and an optical interrogation system configured to exchange electromagnetic radiation with the probe unit in order to interrogate a state of the probe unit that is dependent on the second physical quantity.7. The sensor of claim 6 , wherein the portion of the non ...

Sensor mounting structure and sensor adaptor

The sensor adaptor includes a case body of which a front end is closed and a rear end is open, a cap body being engageable with the rear end of the case body, a seal member interposed between the case body and the cap body, and a fixing portion configured to fix the case body to the mounting portion. A part of the sensor is inserted into an accommodation space of the case body, and the remaining portion of the sensor is drawn out to the outside via an opening of the cap body. The seal member is disposed on a rear end side of the case body to surround the sensor. The seal member is brought into close contact with the case body and the sensor. Accordingly, a gap between the part of the sensor and the case body is sealed from an external space by the seal member.

SENSOR

A sensor assembly for indicating the location of a leadscrew relative to a probe tube, the leadscrew forming part of a nuclear control rod and the probe tube being moveably connected to the leadscrew. The sensor assembly including a primary electromagnetic coil arranged to generate a time varying magnetic field; and a secondary electromagnetic coil arranged to detect the time varying magnetic field as affected, directly or indirectly, by the leadscrew moving relative to the probe tube and to output, on the basis of the detected time varying magnetic field, a signal indicative of the location of the leadscrew relative to the probe tube. The primary electromagnetic coil and the secondary electromagnetic coil comprising copper and nickel. 120120. A sensor assembly for indicating the location of a leadscrew ( , ) relative to a probe tube , the leadscrew forming part of a nuclear control rod and the probe tube being moveably connected to the leadscrew , the sensor assembly including:a primary electromagnetic coil arranged to generate a time varying magnetic field; anda secondary electromagnetic coil arranged to detect the time varying magnetic field as affected, directly or indirectly, by the leadscrew moving relative to the probe tube and to output, on the basis of the detected time varying magnetic field, a signal indicative of the location of the leadscrew relative to the probe tube;wherein the primary electromagnetic coil and/or the secondary electromagnetic coil comprises copper and nickel.2. A sensor assembly according to claim 1 , wherein the primary electromagnetic coil and the secondary electromagnetic coil are formed from a copper-manganese-nickel alloy.3. A sensor assembly according to claim 2 , wherein the copper-manganese-nickel alloy comprises by weight equal to or between 77 and 89% Copper claim 2 , 10 and 18% Manganese claim 2 , 1 and 5% Nickel.4. A sensor assembly according to claim 3 , wherein the copper-manganese-nickel alloy comprises by weight 86% ...

VEHICULAR INPUT DEVICE

The present disclosure provides a vehicular input device including: a capacitance sensor mounted to a vehicle providing a plurality of first conductors lined up in a vehicular front-back direction; and a control unit for estimating the separation distance between the capacitance sensor and a driver's finger based on the amount of an electrical charge in a part of the plurality of first conductors arranged at the back side of a vehicle and also estimating the front-back position of the driver's finger on the capacitance sensor based on the difference of an electrical charge respectively stored in each of the plurality of first conductors. 1. A vehicular input device mounted to a vehicle , comprising:a capacitance sensor that includes a plurality of first conductors lined up in a vehicular front-back direction; anda control unit that estimates a separation distance between the capacitance sensor and a driver's finger based on an amount of an electrical charge stored in a part of the plurality of first conductors arranged at a back side of the vehicle, and estimates a front-back position of the driver's finger on the capacitance sensor based on a difference of the amount of an electrical charge respectively stored in each of the plurality of first conductors.2. The vehicular input device according to claim 1 ,wherein the capacitance sensor includes a plurality of second conductors intersecting the plurality of first conductors, andwherein the control unit estimates a position of the driver's finger in a direction perpendicular to the vehicular front-back direction based on a difference of an amount of an electrical charge respectively stored in each of the plurality of second conductors.3. The vehicular input device according to claim 2 ,wherein the position of the driver's finger in the direction perpendicular to the vehicular front-back direction corresponds to a vehicular horizontal position or a vehicular vertical position.4. The vehicular input device according to ...

Method for measuring the heights of wire interconnections

A height of a vertical wire interconnection bonded onto a substrate is measured by first capturing a top view of the vertical wire interconnection and identifying a position of a tip end of the vertical wire interconnection from the top view. A conductive probe is located over the tip end of the vertical wire interconnection, and is lowered towards the vertical wire interconnection until an electrical connection is made between the conductive probe and the tip end of the vertical wire interconnection. A contact height at which the electrical connection is made may thus be determined, wherein the contact height corresponds to the height of the vertical wire interconnection.

WATER-REJECTION PROXIMITY DETECTOR AND METHOD

A proximity sensor, and a portable device equipped therewith, with at least two superposed sense electrodes, one partially screening the other. By reading the capacity first of one electrode, then of the other, while setting the potential of the counter-electrode either to ground or to guard, the sensor of the invention discriminates between a body part, or another electrically equivalent object, and water drops at closer distance. 1. A proximity sensor for a portable device , the sensor being arranged for detecting proximity of a body portion to the portable device , and for rejecting water or contaminants , comprising: one main electrode facing the outside of the portable device; one reference electrode behind the main electrode , whereby the main electrode screens partially the reference electrode from the outside of the portable device; a readout circuit operatively arranged for acquiring a first capacity of the main electrode by applying a same potential to the main electrode and to the reference electrode , and for acquiring a second capacity of the reference electrode while keeping the main electrode at a fixed potential , and a decision unit arranged to generate a proximity signal based on said first capacity and second capacity.2. The proximity sensor of claim 1 , wherein said reference electrode is a conductive pad claim 1 , and said main electrode is a conductive grid or an array of stripes superposed to the reference electrode.3. The proximity sensor of claim 2 , wherein a pitch of said grid or of said array of stripes is comprised between 0.1 mm and 5 mm.4. The proximity sensor of claim 1 , comprising a screen electrode below the reference electrode claim 1 , the readout circuit being arranged to keep the screen electrode at the electric potential of the reference electrode.5. The proximity sensor of claim 1 , wherein the decision unit is operatively arranged to generate a proximity signal when the first capacity and the second capacity claim 1 , taken ...

CAPACITIVE MEASUREMENT DEVICE

A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance apart. The device comprises a probe having an elongated conductor, an insulating core, a conducting inner guard, an insulating interlayer, and a conducting sheath. A portion of the conductor, insulating core and conducting inner guard form a probe tip which extends beyond the insulating interlayer and conducting sheath by a predetermined offset. The probe is configured to extend from a first surface by a predetermined distance and to generate a signal when the tip is contacted by a second surface. 1. A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance , said device comprising: an elongated conductor;', 'an insulating core radially encasing at least a portion of said conductor;', 'a conducting inner guard radially encasing at least a portion of said insulating core;', 'an insulating interlayer radially encasing at least a portion of said conducting inner guard; and', 'a conducting sheath radially encasing at least a portion of said insulating interlayer,, 'at least one probe comprisingwherein a portion of said conductor, insulating core and conducting inner guard form a probe tip, said probe tip being carried by a first surface and extending a first predetermined distance from the first surface,wherein said probe is configured to generate a signal when said tip is contacted by a second surface moving relative to said probe tip to thereby indicate that the first and second surfaces are spaced less than the predetermined distance.2. The device of wherein said first surface is stationary relative to a third surface and said second surface is moving relative to said first surface.3. The device of wherein said second surface is stationary relative to a third surface and said first surface is moving relative to said second surface.4. The device of ...

A Drug Delivery Device

A drug delivery device including: a body and a movable component arranged inside the body, a dosage selection and injection mechanism setting the position of the movable component inside the body depending on a selected dosage, a non-contact sensor configured to output signals indicative of the position of the movable component inside the body, and a processor. The processor is configured to receive the signals output from the non-contact sensor and to determine based on the signals whether the movable component is either in an initial position inside the body corresponding to no selected dosage or in a selected dosage position. Upon determining that the movable component has changed its position back from the selected dosage position to the initial position, the processor is configured to cause an indication to be output which informs a user regarding a dwell time of the drug delivery device. 115-. (canceled)16. A drug delivery device comprising:a body;a movable component arranged inside the body;a dosage selection and injection mechanism setting a position of the movable component inside the body depending on a selected dosage;a non-contact sensor configured to output signals indicative of the position of the movable component inside the body; anda processor configured to receive the signals output from the non-contact sensor and to determine based on the signals whether the movable component is either in an initial position inside the body corresponding to no selected dosage or is in a selected dosage position, wherein upon determining that the movable component has changed its position from the selected dosage position to the initial position, the processor is configured to cause an indication to be output to inform a user regarding a dwell time of the drug delivery device;wherein the non-contact sensor is a capacitive sensor, and wherein the body, the movable component and the dosage selection and injection mechanism form at least a part of a dielectric layer ...

ADVANCED CAPACITIVE PROXIMITY SENSOR

A proximity sensor, and a portable device equipped therewith, with at least two sense electrodes, one influencing the other. By reading twice the capacity of one electrode, while either setting the potential of the counter-electrode to guard or letting it float, the sensor of the invention discriminates between a body part, or another electrically equivalent object, and low-permittivity objects. 1. A proximity sensor for a portable device , the sensor being arranged for detecting proximity of a body portion to the portable device , and for rejecting inanimate objects , comprising: one main electrode facing the outside of the portable device; one auxiliary reference electrode; a readout circuit operatively arranged for acquiring a first capacity of the main electrode by applying a same potential to the main electrode and to the auxiliary reference electrode , and for acquiring a second capacity of the main electrode while keeping the auxiliary reference electrode floating , and a decision unit arranged to generate a proximity signal based on said first capacity and second capacity.2. The proximity sensor of claim 1 , wherein said inanimate objects have a dielectric permittivity substantially lower than a dielectric permittivity of the human body.3. The proximity sensor of claim 1 , wherein said main electrode is a conductive pad claim 1 , and said auxiliary reference electrode is a conductive element placed aside the main electrode.4. The proximity sensor of claim 1 , comprising a screen electrode below the main electrode claim 1 , the readout circuit being arranged to keep the screen electrode at the electric potential of the auxiliary reference electrode.5. The proximity sensor of claim 1 , wherein the decision unit is operatively arranged to generate a proximity signal when the first capacity and the second capacity claim 1 , taken as coordinates in a two-dimensional plane claim 1 , locate a point inside a predefined acceptance region.6. The proximity sensor of ...

SENSOR DEVICE FOR RECOGNIZING CONSECUTIVE OBJECTS

A method of recognizing consecutive objects on a conveying path in a detection zone arranged on the conveying path comprises the following steps: 1. A method of recognizing consecutive objects on a conveying path in a detection zone arranged on the conveying path , wherein the method comprises the following steps:generating an electromagnetic radio frequency field radiating into the detection zone by means of a radio frequency sensor;measuring a time curve of a dielectric conductivity in the detection zone by means of the radio frequency field of the radio frequency sensor; anddetermining contour information of the consecutive objects from the time curve of the dielectric conductivity.2. The method in accordance with claim 1 , comprising:a determination of an object distance of two consecutive objects as contour information determined from the time curve of the dielectric conductivity.3. The method in accordance with claim 1 , comprising:a determination of an overlap of a plurality of consecutive objects as contour information determined from the time curve of the dielectric conductivity.4. The method in accordance with claim 1 , comprisinga determination of support angles of the objects passing through the detection zone as contour information determined from the time curve of the dielectric conductivity.5. The method in accordance with claim 1 , wherein the detection zone is completely arranged in a near field zone of the radio frequency field of the radio frequency sensor.6. The method in accordance with claim 5 , wherein a distance of the detection zone from the radio frequency sensor amounts to less than one wavelength of the radio frequency field.7. The method in accordance with claim 1 , wherein the radio frequency sensor is configured as a radio frequency resonator and the time curve of the dielectric conductivity is determined from a time change of a resonant frequency of the radio frequency resonator.8. The method in accordance with claim 1 , wherein the ...

MAGNETIC POSITION SENSOR SYSTEM, DEVICE, MAGNET AND METHOD

A position sensor system for determining a position of a sensor device relative to a magnetic structure, the system comprising: said magnetic structure comprising a plurality of non-equidistant poles; said sensor device comprising at least three magnetic sensors spaced apart over predefined distances; and the sensor device being adapted for: a) measuring at least three in-plane magnetic field components, and for calculating two in-plane field gradients therefrom; b) measuring at least three out-of-plane magnetic field components, and for calculating two out-of-plane field gradients therefrom; c) calculating a coarse signal based on these gradients; d) calculating a fine signal based on these gradients; e) determining said position based on the coarse signal and the fine signal. 1. A position sensor device for use in a position sensing system wherein the position sensor device is movable relative to a magnetic structure having a plurality of poles , the position sensor device comprising:a semiconductor substrate;at least three sensors for measuring at least three first magnetic field components oriented in a first direction substantially parallel to the substrate on at least three different locations spaced apart over predefined distances along the first direction, and for measuring at least three second magnetic field components oriented in a second direction oriented substantially perpendicular to the substrate on said at least three different locations;a processing unit adapted for:a) calculating two first gradients of the first magnetic field components along the first direction;b) calculating two second gradients of the second magnetic field components along the first direction;c) calculating a coarse signal based on at least some of the first and second gradients;d) calculating a fine signal based on at least some of the first and second gradients;e) determining a position based on the coarse signal and the fine signal.5. The position sensor device according to ...

SENSING DISTANCE TO TERMINAL

The disclosure relates to a method of sensing a distance applicable to a terminal including capacitive touch sensors. The method includes, when the terminal enters a non-hands-free call state, increasing an electric field strength of the touch sensors and/or decreasing a preset threshold, wherein the touch sensors generate raw data based on sensed signals when the sensed signals are greater than the preset threshold; and determining a distance between an object and the terminal based on the raw data generated by the touch sensors. 1. A method of sensing a distance , applicable to a terminal comprising capacitive touch sensors , the method comprising:when the terminal enters a non-hands-free call state, increasing an electric field strength of the touch sensors and/or decreasing a preset threshold, wherein the touch sensors generate raw data based on sensed signals when the sensed signals are greater than the preset threshold; anddetermining a distance between an object and the terminal based on the raw data generated by the touch sensors.2. The method of claim 1 , wherein the terminal further comprises a receiver claim 1 , and distances between the touch sensors and the receiver are less than a preset distance.3. The method of claim 1 , wherein the touch sensors are located in a preset region of the terminal.4. The method of claim 1 , wherein determining the distance between the object and the terminal based on the raw data generated by the touch sensors comprises:determining a number and/or an area of the touch sensors from each of which a sensed signal is greater than the preset threshold; andwhen the number is greater than a preset number and/or the area is greater than a preset area, determining the distance between the object and the terminal based on the raw data generated by the touch sensors.5. The method of claim 4 , further comprising:when, during a preset time period, the number is not greater than the preset number and/or the area is not greater than the ...

THIN PROXIMITY SENSING DEVICE

A thin proximity sensing device includes a transparent plate and a light sensor. The transparent plate includes a first surface and a second surface. The first surface is provided with a light source and a light entering area. The light source is arranged on the first surface. The second surface is provided with a reflector. The light sensor includes a light receiving area. The light sensor is arranged on the transparent plate. The reflector is capable of correspondingly reflecting specific incident light. The specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to the reflector. After reflected by the reflector, the specific incident light is reflected one or more times within the thickness of the transparent plate and is transmitted to the light sensor. 1. A thin proximity sensing device , comprising:a transparent plate, comprising a thickness and comprising a first surface and an opposite second surface, the first surface being provided with a light source and a light entering area, the light source being arranged on the first surface along a direction of emitting light towards outside of the transparent plate, the light source and the light entering area being located at different positions on the first surface, and the second surface being provided with a reflector corresponding to the light entering area; anda light sensor, comprising a light receiving area, the light sensor being arranged on the transparent plate, with the light receiving area facing to a thickness direction of the transparent plate;wherein the reflector is capable of correspondingly reflecting specific incident light, the specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to ...

Position feedback for self bearing motor

A sensing mechanism includes a magnetic source, a magnetic flux sensor, a sensor backing on which the magnetic source and flux sensor are mounted, and a ferromagnetic target, where the magnetic source, magnetic flux sensor, and ferromagnetic target are positioned to form a magnetic circuit from the magnetic source to the target, from the target to the sensor, and returning to the magnetic source through the sensor backing.

Method and device for actuating a door or flap of a vehicle

Ein Verfahren und eine Vorrichtung (12) zur Betätigung einer Tür oder einer Klappe (1) eines Fahrzeugs (10) werden beschrieben. Dabei wird die Tür oder Klappe (1), wenn sie geschlossen ist, automatisch geöffnet oder, wenn sie geöffnet ist, automatisch geschlossen, wenn eine Bewegung eines Gegenstands mit mindestens einem Richtungswechsel außerhalb des Fahrzeugs (10) erfasst und gleichzeitig ein dem Fahrzeug (10) zugeordneter Schlüssel (6) erfasst wird. A method and apparatus (12) for operating a door or flap (1) of a vehicle (10) will be described. The door or flap (1), when closed, is automatically opened or, when opened, automatically closed when a movement of an object with at least one change of direction outside the vehicle (10) is detected and at the same time a vehicle (10 ) associated key (6) is detected.

Driver assistance system of a forage harvester

Die Erfindung betrifft ein Fahrerassistenzsystem (80) einer als Feldhäcksler (2) ausgeführten landwirtschaftlichen Arbeitsmaschine (1), wobei die landwirtschaftliche Arbeitsmaschine (1) einen Erntevorsatz (3) zur Aufnahme von Erntegut (5), eine Häckseleinrichtung (6) zumindest bestehend aus einer Häckseltrommel (7) und dieser zugeordneten Häckselmessern (8) zum Zerkleinern des Erntegutes (5), und eine Überwachungseinrichtung (92) umfasst, wobei die Überwachungseinrichtung (92) betreibbar ist, ein Signal zu erzeugen, das zumindest eine Information (I) über den Verschleißzustand (39) des jeweiligen Häckselmessers (8) und/oder dem Abstand (88) der Schneidkante (24) eines Häckselmessers (8) zu einer Gegenschneide (11) enthält, wobei weiter die Information (I) zum Verschleißzustand (39) der Häckselmesser (8) und/oder der Abstand (88) der Schneidkante (24) eines Häckselmessers (8) zur Gegenschneide (11) mit jeweils einem Sollwert (66,94) verglichen wird und wobei die landwirtschaftliche Arbeitsmaschine (1) weiter Aktivierungseinrichtungen zur Aktivierung und Deaktivierung eines Messerschleifvorganges (70) und Mittel zur Positionsänderung (97) der Gegenschneide (11) umfasst und die Überwachungseinrichtung (92) in der Weise in das Fahrerassistenzsystem (80) integriert ist, dass das Fahrerassistenzsystem (80) selbsttätig erkennt wann ein Messerschleifvorgang (96) aktiviert oder deaktiviert werden muss und/oder eine Positionsänderung (97) der Gegenschneide (11) zu aktivieren oder deaktivieren ist. The invention relates to a driver assistance system (80) of an agricultural work machine (1) designed as a forage harvester (2), the agricultural work machine (1) having a header (3) for picking up crops (5), a chopping device (6) consisting of at least one Chopping drum (7) and chopping knives (8) assigned to it for chopping the crop (5), and a monitoring device (92), the monitoring device (92) being operable to generate a signal that contains at least information (I) about the ...

Cutting sharpening detection device

Die Erfindung betrifft eine Erfassungsanordnung (28) zur Erfassung eines Verschleißzustands (39) einer Häckselmesseranordnung (9a..b) einer zur Verarbeitung eines Gutstroms (5) vorgesehenen Häckseleinrichtung (6), wobei die Häckseleinrichtung (6) eine umlaufende, die Häckselmesseranordnung (9a..b) aufnehmende Häckseltrommel (7) sowie mindestens eine Gegenschneide (11), die mit den Häckselmessern (8) zusammenwirkt, aufweist, mit einer Sensoranordnung (23a..b) aufweist, die eine magnetische Erregeranordnung (26) und eine damit magnetisch gekoppelte Flussleiteinrichtung (29) aufweist, wobei die Sensoranordnung (23a..b) eine Polanordnung (27) bereitstellt, die mindestens einen magnetischen Pol (30) mit einer Polfläche (31) zum Ausleiten von Magnetfluss ausbildet wobei bei einer Drehung der Häckseltrommel (7) zumindest ein Teil der Häckselmesser (8) die Polanordnung (27) passiert, wobei eine beim Überstreichen der Sensoranordnung (23a..b) durch eine Häckselmesseranordnung (9a..b) induzierte Spannung (38a..e) die magnetische Messgröße (37) bildet und die Erfassungsanordnung (28) die induzierte Spannung (38a..e) ermittelt und als Spannungssignal (49a..e) aufzeichnet, das Spannungssignal (49a..e) in der Auswerteinheit (36) mittels Frequenzanalyse (41) in seine Frequenzanteile (42) zerlegt wird die Frequenzanteile (42) in Frequenzanteile (42) einer Grundschwingung (45) und in Signalverzerrungen bewirkende Frequenzanteile (42) einer überlagernden Schwingung (46) separiert werden, wobei die separierten, eine Signalverzerrung bewirkenden Frequenzanteile (42) der überlagernden Schwingung (46) in den Zeitbereich (48) rücktransformiert werden und aus den rücktransformierten Frequenzanteilen (42) der überlagernden Schwingung (46) ein Maß für den Verschleißzustand (39) und/oder die Schneidschärfe (65) eines Häckselmessers (8) abgeleitet wird. The invention relates to a detection arrangement (28) for detecting the state of wear (39) of a chopping knife arrangement (9a..b) of a ...

Method for processing a workpiece by means of a laser beam

The invention relates to a method for processing a workpiece (2) by means of a laser beam by using a sensor electrode (3) which can be positioned relative to the workpiece (2) and to which an electric AC signal is applied in order to determine a measuring capacitance (CMess) present between the sensor electrode (3) and workpiece (2), by evaluating a change in the AC signal as a consequence of the measuring capacitance. The first step in this process is to generate from the AC signal an electric DC signal which corresponds to the distance between the sensor electrode (3) and workpiece (2). By frequency filtering and subsequent rectification, an interference measurement signal is generated from this DC signal and compared with a predetermined threshold value, with the result that whenever the interference measurement signal passes the threshold value a state signal can be generated for further control of the processing operation. <IMAGE>

Driver assistance system of a forage harvester

Die Erfindung betrifft ein Fahrerassistenzsystem (80) einer als Feldhäcksler (2) ausgeführten landwirtschaftlichen Arbeitsmaschine (1), wobei die landwirtschaftliche Arbeitsmaschine (1) einen Erntevorsatz (3) zur Aufnahme von Erntegut (5), eine Häckseleinrichtung (6) zumindest bestehend aus einer Häckseltrommel (7) und dieser zugeordneten Häckselmessern (8) zum Zerkleinern des Erntegutes (5), und eine Überwachungseinrichtung (92) umfasst, wobei die Überwachungseinrichtung (92) betreibbar ist, ein Signal zu erzeugen, das zumindest eine Information (I) über den Verschleißzustand (39) des jeweiligen Häckselmessers (8) und/oder den Abstand (88) der Schneidkante (24) eines Häckselmessers (8) zu einer Gegenschneide (11) enthält, wobei weiter die Information (I) zum Verschleißzustand (39) der Häckselmesser (8) und/oder der Abstand (88) der Schneidkante (24) eines Häckselmessers (8) zur Gegenschneide (11) mit jeweils einem Sollwert (66,94) verglichen wird und wobei die landwirtschaftliche Arbeitsmaschine (1) weiter Aktivierungseinrichtungen zur Aktivierung und Deaktivierung eines Messerschleifvorganges (70) und Mittel zur Positionsänderung (97) der Gegenschneide (11) umfasst und das Fahrerassistenzsystem (80) aus den von der Überwachungseinrichtung (92) generierten Information (I) zum Verschleißzustand (39) des jeweiligen Häckselmessers (8) und/oder dem Abstand (88, 89) der Schneidkante (24) des jeweiligen Häckselmessers (8) zu einer Gegenschneide (11) Prognosen (103) zum Verschleißzustand (39) des Häckselmessers (8) und/oder Prognosen (104) zum Zustand der Gegenschneide (11) generiert. The invention relates to a driver assistance system (80) of an agricultural work machine (1) designed as a forage harvester (2), the agricultural work machine (1) having a harvesting header (3) for picking up crops (5), a chopping device (6) consisting of at least one Chopping drum (7) and chopping knives (8) assigned to it for chopping the crop (5), and a monitoring device (92), the ...

INDUCTIVE PROXIMITY SENSOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL TO THE DISTANCE

Détecteur de proximité comportant un circuit oscillant parallèle 1, 3 dont l'inductance 1 est influencée par la piece métallique dont on veut repérer la distance, ce circuit oscillant faisant partie d'un oscillateur (transistor 5, circuit de réaction 4, Le montage est caractérisé en ce que l'oscillateur est alimenté à courant constant (générateur 6), que la résistance 4 d'injection du courant dans le circuit oscillant est pratiquement nulle et que le signal de sortie Vosc est prélevé aux bornes de l'oscillateur. Application à la réalisation d'un dispositif utilisant un signal analogique linéaire en fonction de la distance, pour classer des objets ou mesurer leur vitesse d'approche. Proximity detector comprising a parallel oscillating circuit 1, 3 whose inductance 1 is influenced by the metal part whose distance we want to identify, this oscillating circuit forming part of an oscillator (transistor 5, feedback circuit 4, The assembly is characterized in that the oscillator is supplied at constant current (generator 6), that the resistance 4 for injecting the current into the oscillating circuit is practically zero and that the output signal Vosc is taken at the terminals of the oscillator. to the production of a device using a linear analog signal as a function of distance, to classify objects or measure their approach speed.

Eddy current clearance transducing system

A system combining a transducer and a signal processing circuit measures the clearance distance from the transducer to an electrically conductive moving part of a machine. The transducer contains a magnet and a coil, both coupled magnetically to a region traversed by the machine part. Eddy currents are induced in the part as it passes through the magnetic field of the transducer. These currents produce a field which moves with the part and generates a characteristic signal in the transducer coil. Amplitude and timing attributes of the signal are measured by the signal processing circuit. An experimentally derived mathematical function which relates the amplitude and timing of this signal to the clearance distance between the transducer and the moving part is used to compute the clearance distance. During this calculation useful information is also developed about the speed and transit time of the moving part. The system is adapted to turbomachinery blade condition monitoring.