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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 19831. Отображено 100.
27-03-2016 дата публикации

Высоковольтный делитель напряжения

Номер: RU0000160683U1
Автор: Алексей Александрович Сердцев, Борис Борисович Малков, Михаил Александрович Власов, Сергей Александрович Перегудов
Принадлежит: Закрытое акционерное общество "Инженерно-технический центр "Континуум"

Высоковольтный делитель напряжения, содержащий заземленный и высоковольтный электроды, закрепленные на торцах изоляционного цилиндра, с расположенными между ними последовательно соединенными R-C-r блоком низковольтного плеча и высоковольтным плечом, помещенным в сыпучий диэлектрик, содержащим в себе, по меньшей мере, один R-C-r блок, характеризующийся тем, что внутреннее пространство изоляционного цилиндра с расположенными внутри R-C-r блоками высоковольтного плеча герметизировано и заполнено изолирующим обезвоженным инертным газом под избыточным давлением, при этом делитель дополнительно снабжен блоком контроля избыточного давления газа во внутреннем пространстве изоляционного цилиндра делителя. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G01R 15/00 (13) 160 683 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015141435/28, 30.09.2015 (24) Дата начала отсчета срока действия патента: 30.09.2015 (73) Патентообладатель(и): Закрытое акционерное общество "Инженерно-технический центр "Континуум" (RU) (45) Опубликовано: 27.03.2016 Бюл. № 9 1 6 0 6 8 3 R U (57) Формула полезной модели Высоковольтный делитель напряжения, содержащий заземленный и высоковольтный электроды, закрепленные на торцах изоляционного цилиндра, с расположенными между ними последовательно соединенными R-C-r блоком низковольтного плеча и высоковольтным плечом, помещенным в сыпучий диэлектрик, содержащим в себе, по меньшей мере, один R-C-r блок, характеризующийся тем, что внутреннее пространство изоляционного цилиндра с расположенными внутри R-C-r блоками высоковольтного плеча герметизировано и заполнено изолирующим обезвоженным инертным газом под избыточным давлением, при этом делитель дополнительно снабжен блоком контроля избыточного давления газа во внутреннем пространстве изоляционного цилиндра делителя. Стр.: 1 U 1 U 1 (54) ВЫСОКОВОЛЬТНЫЙ ДЕЛИТЕЛЬ НАПРЯЖЕНИЯ 1 6 0 6 8 3 Адрес для переписки: 150001, г. Ярославль, ...

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Номер записи: 1
09-02-2012 дата публикации

Voltage source for calibrating a fast transient voltage measurement system and calibration method

Номер: US20120032686A1
Автор: Chengyu Wang, Gongchang Yue, Shaowu Wang, Weidong Liu, Weijiang Chen, Zhibing Li
Принадлежит: China Electric Power Research Institute Co Ltd CEPRI, State Grid Corp of China SGCC, TSINGHUA UNIVERSITY

The present disclosure discloses a voltage source for calibrating a fast transient voltage measurement system, comprising a DC high voltage power supply, a discharging gap, a high voltage conductor and an earthing conductor, wherein the high voltage conductor and the earthing conductor are high voltage insulated from each other and form a traveling wave line with constant wave impedance; the DC high voltage power supply is connected between the ends of the high voltage conductor and the earthing conductor; the discharging gap is connected between ends of the high voltage conductor and the earthing conductor; the discharging gap is broken down when the charging voltage on the high voltage conductor is risen to a certain amplitude. The present disclosure also provides a method for calibrating a fast transient voltage measurement system: the high voltage conductor is insulated from the earthing conductor, and is open circuit at one end and at the other end connected with the earthing conductor via the discharging gap, the high voltage breaks down the discharging gap, applying a high voltage between the high voltage conductor and the earthing conductor, a very fast transient high voltage is produced on the high voltage conductor and its waveform can be determined by theoretical calculation, the very fast transient high voltage with known waveform is used as the calibration voltage for calibrating the measurement system. This reaches the purpose of simplifying the structure of voltage source for calibrating the fast transient voltage measurement system as well as the calibration method.

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Номер записи: 2
08-03-2012 дата публикации

Socket for electrical parts

Номер: US20120058683A1
Автор: Satoru Suzuki, Shin Kobayashi, Yuki Ueyama
Принадлежит: Enplas Corp

A socket for an electrical part to prevent a bad electrical connection with a circuit by preventing a deformation of a tip of a contact pin. The contact pin of the present invention comprises one terminal contacts to a terminal of the electrical part and the other terminal contacts to the circuit. When a tip of the other terminal is pressed to a substrate under a state that first and second holes of first and second holding plates are shifted each other, an upper terminal of the held portion of the other terminal contacts to a lower surface of the second holding plate, and makes the second holding plate to separate from the first holding plate against a spring force of a urging member. At this time, the portion projecting from the lower surface of the first holding plate toward the substrate moves into the first hole.

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Номер записи: 3
19-04-2012 дата публикации

Current Sensor Array for Measuring Currents in a Primary Conductor

Номер: US20120091996A1
Автор: Jen Doeblitz, Juergen Schoettle, Marcus Bremmer, Michael Wolf, Ralf Koch
Принадлежит: ROBERT BOSCH GMBH, Vacuumschmelze GmbH and Co KG

Disclosed are a method and an array for measuring a primary current in a primary conductor that is magnetically coupled to a secondary conductor via a ferromagnetic core. In said method and array, the following is done; a voltage having a specific amplitude is applied to the secondary conductor such that a secondary current flows for reversing the magnetization of the ferromagnetic core; the secondary current is measured while the magnetization of the ferromagnetic core is reversed in order to obtain a first measured value; the polarity of the voltage is reversed such that a secondary current flows for once again reversing the magnetization of the ferromagnetic core; the secondary current is measured while the magnetization of the core is reversed in order to obtain a second measured value; the primary current is calculated in accordance with the first and the second measured value, the polarity of the voltage being regularly reversed at a certain sensor frequency that is continuously varied.

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Номер записи: 4
24-05-2012 дата публикации

Socket

Номер: US20120129379A1
Автор: Hideki Sano, Hideyuki Takahashi
Принадлежит: Individual

A socket ( 100 ) of the present invention includes a base member ( 20 ), a cover member ( 30 ), a plurality of contacts ( 40 ), a latch member ( 60 A) that is rotatably supported by the base member ( 20 ) and rotates in response to movement of the cover member ( 30 ), an adaptor ( 50 ) providing a mounting surface for an IC package and attached with the base member ( 20 ) so as to move in an up and down direction in response to the movement of the cover member ( 30 ), and a latch plate ( 200 ) rotatably attached with the adaptor ( 50 A) and urged by an elastic member. The adaptor ( 50 A) is formed with a latch guide ( 58 ) that moves the latch plate ( 200 ) in the vertical direction when the latch plate ( 200 ) presses the IC package.

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Номер записи: 5
07-06-2012 дата публикации

Mixed mode fluxgate current transducer

Номер: US20120139527A1
Автор: Hiroshi Obata, Wolfram Teppan, Yori Hatakeyama
Принадлежит: Liaisons Electroniques Mecaniques LEM SA

Electrical current transducer comprising a measuring circuit ( 6 ) and an inductor ( 4 ) for measuring a primary current I P flowing in a primary conductor ( 2 ), the inductor comprising a saturable magnetic core ( 10 ) made of a highly permeable magnetic material and a secondary coil ( 12 ) for carrying an alternating excitation i configured to alternatingly saturate the magnetic core, the coil being connected to the measuring circuit. The measuring circuit is configured to measure a mean value of the excitation current in the secondary coil and determine therefrom a value of the primary current for small current amplitudes, the measuring circuit being further configured for evaluating the frequency of the excitation current i and determining therefrom the value of the primary current for large currents.

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Номер записи: 6
12-07-2012 дата публикации

Voltage Conversion and/or Electrical Measurements from 400 Volts Upwards

Номер: US20120176103A1
Автор: Juan Lizarazo, Ram Rajagopal
Принадлежит: Verivolt LLC

A voltage-converter and a signal processing circuit are disclosed. A voltmeter, a power meter and a three-phase meter each including the voltage-converter and the signal processing circuit are disclosed. Methods of making the voltage-converters, voltmeters, three phase meters and power meters, as well as operating and/or using these apparatus are disclosed. Apparatus including feedback paths with at least one voltage-converters, voltmeters, three-phase meters and/or power meters are disclosed.

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Номер записи: 7
02-08-2012 дата публикации

Active core current sensor

Номер: US20120194171A1
Автор: John Herman Blakely
Принадлежит: Rockwell Automation Technologies Inc

Methods and system for sensing current include detecting current through a sensing coil resulting from a field produced by current through a primary conductor. The sensing coil has a core that may become saturated by the primary current field. If the core is not saturated, a sensing circuit may detect the current through the sensing coil by changing the state of at least one controlled switch. If the core is saturated, the sensing circuit changes the state of the at least one controlled switch to pull the core out of saturation, at which time a current measurement is made. The technique may be used with AC currents, including changing currents, as well as with DC currents, and currents that may be AC at times and become essentially DC at other times.

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Номер записи: 8
02-08-2012 дата публикации

Mechanical Packaging and Method for a Single Current Sensor Integrated into an Electricity Meter

Номер: US20120194174A1
Автор: Garry M. Loy
Принадлежит: Elster Solutions Llc

An electricity meter comprises a single current sensor with a toroidal coil that has an inner bore extending substantially through the sensor. The meter also has two current conductors that form one of a pair of line-side blades of the meter. The electricity meter also has a disconnect switch with a pair of moveable contacts and a pair of fixed contacts. One of the pairs contacts is electrically connected to the current conductors. The other pair forms a respective load-side blade of the meter. One current conductor passes through the inner bore of the current sensor in a first direction relative to its line-side blade and the other current conductor passes through the inner bore of the current sensor in a substantially opposite direction relative to its line-side blade so that current passing through the conductors passes through the inner bore of the current sensor in a same direction.

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Номер записи: 9
09-08-2012 дата публикации

Method for measuring a current, in particular by means of a grounding apparatus

Номер: US20120200960A1
Автор: Burkhard Mueller
Принадлежит: SMA Solar Technology AG

The invention is a method and electric circuitry for measuring a grounding current of a photovoltaic power system incorporating a photovoltaic inverter, a measurement current being led through two shunts disposed at different points. The measurement current is a current that may flow alternatively at two different points at different electric potentials, the current flowing at a potential that differs by at least 50 V from the potential of the point of evaluation. The shunts are inserted in such a manner in a current mirror circuit that the voltage drop caused by the measurement in the shunts generates an asymmetry in the current mirror the magnitude of which is proportional to the measurement current. The measurement current is the grounding current of the photovoltaic power system with optional positive or negative pole grounding.

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Номер записи: 10
30-08-2012 дата публикации

Inductive monitoring of a power transmission line of an electrical network

Номер: US20120217975A1
Автор: Jeffrey M. Drazan
Принадлежит: Individual

A method includes inductively coupling an electrical sensor to a transmission line associated with a node of an electrical network, and capturing power transmission information associated with the node through the electrical sensor. The method also includes communicating, through an electrical sensing device including the electrical sensor, information associated with a location of a power outage and/or a sub-optimal performance in the node to a processing node and/or a central control node associated with the electrical network.

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Номер записи: 11
04-10-2012 дата публикации

Pneumatically actuated IC socket with integrated heat sink

Номер: US20120252243A1
Автор: Glenn Chan
Принадлежит: Incavo Otax Inc

An IC socket is pneumatically actuated and has an integrated heat sink. Thermally conductive elements of the heat sink extend through an opening of a pneumatically actuated element shaped as a closed curve of finite width so that heat radiating from the thermally conductive elements may dissipate through a top opening of the IC socket. Downward force exerted by the pneumatically actuated element is transferred through a gimbaled multi-plate and spring arrangement to provide even pressure on the die and substrate of an IC device being held in place by the IC socket. A spring-loaded ground tab on the bottom of the IC socket simplifies grounding of the IC socket to avoid damaging the held IC device by static discharge.

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Номер записи: 12
11-10-2012 дата публикации

Device and Assembly for Measuring an Electric Current

Номер: US20120256617A1
Автор: Alain Moreux, Pascal Houbre
Принадлежит: Schneider Electric Industries SAS

The device for measuring an electric current is provided to measure currents flowing in a cable. It comprises means for securing a flexible Rogowski coil able to occupy an open position enabling engagement around the cable and a closed position designed to surround the cable. The device comprises actuating means designed to move said coil from one position to the other. The measuring assembly comprises at least one such measuring device and measurement and/or transmission electronics of the result of the measurements receiving data from the coil of the measuring device.

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Номер записи: 13
07-02-2013 дата публикации

Hook portion of clamp meter

Номер: US20130032983A1
Автор: Shao-Lin Liu
Принадлежит: Chung Instrument Electronics Ind Co Ltd

A clamp meter has a main body and a stationary jaw fixed to an end of the main body. A hook portion of the clamp meter includes a movable jaw, a displacing means and a knob. The movable jaw is mounted on the main body corresponding to the position of the stationary jaw. The movable jaw and the stationary jaw together form a closed loop. The displacing means is mounted in the main body and comprises a displaceable rod connected to the movable jaw and a gear set for driving the displaceable rod. The knob is connected to the gear set for driving the displaceable rod and the movable jaw for linear displacement. The movable jaw is activated by the displaceable rod to generate a linear displacement, so that the user can operate the clamp meter more easily for measurement.

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Номер записи: 14
21-02-2013 дата публикации

High Voltage Sensing Capacitor and Indicator Device

Номер: US20130043891A1
Автор: Bill Blankenship, Sam Handshoe
Принадлежит: SMC Electrical Products Inc

A high-voltage sensing capacitor as an interface apparatus that may be used to attach an indicator unit to a high-voltage AC electrical bus and to provide safety to maintenance personnel. The high-impedance nature of the sensing capacitor effectively isolates the indicator unit from the high-voltage source to which it is connected. The sensing capacitor can be directly mounted between a high-voltage busbar and an indicator unit to provide visual and/or audible alerts to maintenance personnel when high voltage conditions are detected on the busbar. The sensing capacitor is comprised of a portable, unitary capacitive structure that includes a molded insulator body encapsulating two electrodes. The electrodes only partially or incompletely overlap within the insulator body. The electrode spacing and configuration is structured to provide a deliberate amount of coupling between the two electrodes in the presence of an AC electric field.

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Номер записи: 15
07-03-2013 дата публикации

Current sensor arrangement

Номер: US20130057272A1
Автор: Friedrich Lenhard, Sebastian Kudimow
Принадлежит: Vacuumschmelze GmbH and Co KG

Current sensor comprising a primary conductor for conducting a current that is to be measured, at least two magnetic field probes for measuring magnetic fields, and a magnetic core, which has a closed ring structure that encloses the primary conductor and at least two recesses that in each case receive one of the magnetic field probes.

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Номер записи: 16
14-03-2013 дата публикации

A system and method for measuring phase attributes of electrical grid system and equipment using a smart probe

Номер: US20130066576A1
Автор: Adishesha Cs, Arun Vijayakumari Mahasenan, Bhanumurthy Veeragandham
Принадлежит: Honeywell International Inc

A system for measuring phase attributes of high voltage electrical lines comprises a single high voltage probe. The probe comprises a sensing element for selectively measuring voltage of a high voltage electrical line. A processing circuit detects zero crossings of the measured voltage, applies a time tag to the zero crossings, and stores samples of the amplitude and time tagged zero crossings. A memory stores samples of the amplitude and time tagged zero crossings for a plurality of high voltage electrical lines. A processor is operatively associated with the memory for determining phase relationships between the plurality of high voltage electrical lines.

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Номер записи: 17
21-03-2013 дата публикации

Indirect non-contact high voltage measurement on electrical power line

Номер: US20130069664A1
Автор: Vasu MOGAVEERA
Принадлежит: Honeywell International Inc

A non-contact electrical power line voltage measurement device comprises a probe including an insulated shield supporting an electrode to sense electrostatically induced voltage from the power line. The shield houses a high voltage resistor connected in series with the electrode. A meter comprises a housing operatively associated with the shield and enclosing a measurement circuit electrically connected to the high voltage resistor for measuring induced electrode voltage. A calibration circuit correlates measured electrode voltage to power line voltage. A display is driven by the measurement circuit for displaying actual power line voltage responsive to the electrode being a select distance from the power line.

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Номер записи: 18
09-05-2013 дата публикации

VEHICLE DOOR HANDLE APPARATUS

Номер: US20130113504A1
Автор: Tsurumaki Koichi
Принадлежит: ALPHA CORPORATION

A vehicle door handle apparatus is provided with a handle main body formed by coupling a first cover and a second cover and a capacitance sensor accommodated in a hollow space in the handle main body. One of the first cover and the second cover is formed with an accommodation recess defined by partition walls. The capacitance sensor is accommodated in the accommodation recess and fixed by a potting agent. 17-. (canceled)8. A vehicle door handle apparatus comprising:a handle main body formed by coupling a first cover and a second cover; anda capacitance sensor accommodated in a hollow space in the handle main body,wherein the capacitance sensor is configured as a unit by covering a detection circuit and an electrode with an outer shell member made of synthetic resin,wherein one of the first cover and the second cover is formed with an accommodation recess defined by partition walls, andwherein the capacitance sensor is accommodated in the accommodation recess and fixed by a potting agent which prevents a water from entering a bottom wall of the accommodation recess.9. The vehicle door handle apparatus according to claim 8 , further comprising:a handle base fixed to a door panel of a vehicle,wherein the handle main body is connected to the handle base so as to be rotatable around a rotation center relative to the handle base.10. The vehicle door handle apparatus according to claim 9 , wherein the partition walls include an inner wall surface which intersects a bottom surface of the bottom wall claim 9 , andwherein the potting agent is positioned at a gap between the inner wall surface and the capacitance sensor.11. The vehicle door handle apparatus according to claim 8 , wherein an inner wall surface of the accommodation recess is placed close to an outer peripheral wall of the capacitance sensor claim 8 , andwherein the potting agent is supplied in a fillet form to a gap between the outer peripheral wall of the capacitance sensor and the partition walls.12. The ...

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Номер записи: 19
20-06-2013 дата публикации

Rogowski Coil Assembly

Номер: US20130154616A1
Автор: Gerber Dominic, Hobelsberger Max
Принадлежит: ALSTOM TECHNOLOGY LTD.

A Rogowski coil assembly () for measurement of high frequency electrical currents includes coil segments () disposed in series with retrospective impedance influence reduction coupling. 1. A Rogowski coil assembly useful for measurement of high frequency electrical currents comprising:at least two coil segments disposed in series; andretrospective impedance influence reduction coupling of said at least two coil segments.2. A Rogowski coil assembly according to claim 1 , wherein each coil segment includes an input and an output claim 1 , and further comprising:a signal decoupling circuit having an input and an output;wherein the at least two coil segments are connected to each other in series through the signal decoupling circuit, with the output of one coil segment connected to the input of the signal decoupling circuit and the input of a subsequent coil segment connected to the output of the signal decoupling circuit.3. A Rogowski coil assembly according to claim 2 , wherein the signal decoupling circuit comprises an impedance converting electrical component with high input impedance and low output impedance.4. A Rogowski coil assembly according to claim 3 , wherein the impedance converting electrical component comprises an operational amplifier mounted as a voltage follower.5. A Rogowski coil assembly according to claim 3 , wherein:the impedance converting electrical component comprises an operational amplifier and two resistances in series configured as a voltage divider, the operational amplifier having a non-inverting input and the voltage divider having an input;the operational amplifier and the voltage divider are configured as a non-inverting amplifier; andthe output of said one coil segment is connected to the non-inverting input of the operational amplifier and the input of said one coil segment is connected to the input of the voltage divider.6. A Rogowski coil assembly according to claim 2 , wherein the signal decoupling circuit comprises a signal ...

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Номер записи: 20
20-06-2013 дата публикации

Digital multimeter having remote display with automatic communication binding

Номер: US20130156438A1
Автор: Glen Howard Vetter, Jeffrey C. Hudson, Nathaniel J. Wetzel
Принадлежит: Fluke Corp

A method of automatically binding first and second devices for RF communication is disclosed. One step of the method involves establishing a secure, non-RF communication mode between the first and second devices. According to another step, first and second communication addresses respectively identifying the first and second devices are exchanged in the secure, non-RF communication mode such that the first and second devices will recognize each other as communication partners. The secure, non-RF communication mode is then terminated and an RF communication mode is established between the first and second devices as a first bound pair.

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Номер записи: 21
27-06-2013 дата публикации

DC & AC CURRENT DETECTION CIRCUIT

Номер: US20130162242A1
Автор: Goinga Ydo
Принадлежит: SHAKIRA LIMITED

A circuit for detecting a DC current in a conductor (L) includes a current transformer (CT) having a ferromagnetic core (), a primary winding comprising the conductor (L) and at least one secondary winding (W). The circuit further includes an oscillator () for supplying an oscillating signal across the secondary winding and means for detecting a dc offset in the current flowing in the oscillator circuit. The circuit includes a capacitor (C) in series with the secondary winding, and the detecting means is arranged to detect a non-zero voltage across the capacitor above a certain level. 1. A circuit for detecting a DC current in at least one conductor , the circuit including:a current transformer having a ferromagnetic core, a primary winding comprising the conductor and at least one secondary winding,an impedance in series with the secondary winding,an oscillator for supplying an oscillating signal across the impedance and the secondary winding andmeans for detecting a dc offset in the current flowing in the impedance and the secondary winding,wherein:the impedance comprises a first capacitor,the current transformer has two secondary windings and the first capacitor is connected in series between the secondary windings, andthe detecting means is arranged to detect a non-zero voltage across the first capacitor above a certain level, the non-zero voltage corresponding to a dc offset greater than a predetermined magnitude, andwherein the detecting means comprises:a pair of transistors each of which is turned on in response to a detected non-zero voltage in a respective one of the two opposite directions across the first capacitor,a resistance and a second capacitor mutually connected in parallel, the parallel combination of the resistance and second capacitor being connected in series with each transistor so that the second capacitor is charged up when either transistor is turned on, andmeans for monitoring the voltage on the second capacitor.210-. (canceled)11. A ...

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Номер записи: 22
27-06-2013 дата публикации

Modular Test Plug For Voltage, Current And Current Transformer Saturation Testing

Номер: US20130162264A1
Автор: Don Elliott, Keith Lessard, Kyly Belhumeur
Принадлежит: Hemicycle Controls Inc

A modular test plug for voltage, current and saturation testing has a housing having a handle portion, a plurality of jaw connections for injecting upstream toward the equipment to be tested, a plurality of blade connections for injecting downstream toward a transformer, a first plurality of binding posts on a top of the housing connected to the jaw connections, and a second plurality of binding posts also on a top of the housing connected to the blade connections. Also provided is a short-defeating insert for defeating a shorting mechanism in an FT switch. This insert has a thin flat extension member extending from the body to prevent a bottom cam on a shorting blade from making contact with a shorting spring that would otherwise short the circuit when the switch handle is moved from the open position to the closed position.

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Номер записи: 23
04-07-2013 дата публикации

CURRENT SENSOR

Номер: US20130169267A1
Автор: FUKUOKA Seiji, Hirano Hiroyuki, KASHIWAGI Takao, MIYAKOSHI Takaaki
Принадлежит: TDK Corporation

A current sensor has first and second magnetic bodies for magnetic shielding opposed to each other, and a bus bar and a Hall IC disposed between the magnetic bodies. The magnetic bodies are magnetized in directions opposite to each other when a current flows through the bus bar. The Hall IC is disposed at a position at which a magnetic field applied to the Hall IC is weakened by magnetization of the first magnetic body and by magnetization of the second magnetic body. 1. A current sensor comprising:first and second magnetic bodies opposed to each other for magnetic shielding; and the first and second magnetic bodies are magnetized in directions opposite to each other when a current flows through the bus bar, and', 'the magnetically sensitive element is disposed at a position at which a magnetic field applied to the magnetically sensitive element is weakened by a magnetic field generated by magnetization of the first magnetic body and by a magnetic field generated by magnetization of the second magnetic body., 'a bus bar and a magnetically sensitive element disposed between the first and second magnetic bodies, wherein'}2. The current sensor according to claim 1 , wherein coercive forces of the first and second magnetic bodies are the same or nearly the same.3. The current sensor according to claim 1 , wherein cross sections of the first and second magnetic bodies have the same or similar shapes.4. The current sensor according to claim 1 , wherein cross sections of the first and second magnetic bodies have asymmetrical shapes.5. The current sensor according to claim 1 , whereinrespective end edges of the first and second magnetic bodies are opposed to each other across respective gaps,the first and second magnetic bodies surround the bus bar and the magnetically sensitive element, as a whole, andthe magnetically sensitive element is located (i) between a first straight line connecting the respective end edges of the first magnetic body and a second straight line ...

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Номер записи: 24
25-07-2013 дата публикации

Electrical sensor for a two-wire power cable

Номер: US20130187635A1
Автор: Lien-Yi Cho, Ming-Jhe Du, Shih-Hsien Cheng, Yu-Ting Cheng, Yung-Chang Chen
Принадлежит: Industrial Technology Research Institute ITRI

The invention discloses an electrical sensor for a two-wire power cable. The sensor includes: a flexible substrate joined onto the power cable or the protective jacket thereon; an inductive coil formed on the flexible substrate; a pair of metal electrodes formed on the flexible substrate and at the opposite sides of the power cable, respectively; and a readout circuit formed on the flexible substrate, electrically connected to the inductive coil so as to measure the current in the power cable, and electrically connected to the metal electrodes so as to measure the voltage in the power cable.

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Номер записи: 25
01-08-2013 дата публикации

JIG FOR MEASURING EMC OF SEMICONDUCTOR CHIP AND METHOD FOR MEASURING EMC OF SEMICONDUCTOR CHIP USING THE SAME

Номер: US20130193983A1
Автор: YEO Soon ll
Принадлежит: Electronics and Telecommunications Reseach Institute

Disclosed are a jig for measuring EMC of a semiconductor chip and a method for measuring EMC that can accurately measure the EMC at a semiconductor chip level. The jig for measuring EMC of a semiconductor chip according to the exemplary embodiment of the present disclosure includes: a chip mount unit on which the semiconductor chip for which the EMC is to be measured is mounted; a memory unit configured to store EMC information of components in a system in which the semiconductor chip is used; and a measurement control unit configured to extract the EMC information stored in the memory unit and provide the extracted EMC information to the chip mount unit at the time of measuring the EMC of the semiconductor chip. 1. A jig for measuring EMC at a semiconductor chip level , comprising:a chip mount unit on which the semiconductor chip for which the EMC is to be measured is mounted,wherein various operation environments of a system in which the semiconductor chip is used are implemented in the chip mount unit at the time of measuring the EMC of the semiconductor chip.2. A jig for measuring EMC at a semiconductor chip level , comprising:a chip mount unit on which the semiconductor chip for which the EMC is to be measured is mounted;a memory unit configured to store EMC information of components in a system in which the semiconductor chip is used; anda measurement control unit configured to extract the EMC information stored in the memory unit and provide the extracted EMC information to the chip mount unit at the time of measuring the EMC of the semiconductor chip.3. The jig of claim 2 , wherein the chip mount unit implements various operation environments of the system in which the semiconductor chip is used by using the EMC information provided from the memory unit at the time of measuring the EMC of the semiconductor chip.4. The jig of claim 2 , wherein:the memory unit includesa general database configured to store information required for a general function test of ...

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Номер записи: 26
08-08-2013 дата публикации

Capacitor Assembly For A Mass Spectrometer

Номер: US20130200260A1
Автор: Eliot Powell, Kenneth R. Worthington, Richard Moulds
Принадлежит: Micromass UK Ltd

A capacitor assembly ( 1 ) for measuring the level of radio frequency voltage in a mass spectrometer. The assembly ( 1 ) includes an RF sensing capacitor ( 2 ) with first and second capacitor plates ( 3, 4 ), a rectifying circuit ( 5 ) and a vacuum housing feedthrough ( 6 ), all of which are mounted within a vacuum enclosure of the mass spectrometer. The first capacitor plate ( 3 ) is adapted for connection to a voltage source and mounted within the enclosure by first insulating spacers ( 31 ). The second capacitor plate ( 4 ) is nested within the first insulating spacers ( 31 ) and mounted within the enclosure by second insulating spacers ( 41 ). The rectifying circuit ( 5 ) is electrically connected to the second capacitor plate ( 4 ) and to the vacuum housing feedthrough ( 6 ).

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Номер записи: 27
15-08-2013 дата публикации

Instrument with Non-contact Infrared Temperature Measurement and Current Clamp

Номер: US20130208761A1
Автор: Roger Mavrides
Принадлежит: General Tools and Instruments Co LLC

A multi-meter performs multiple measurement functions and includes a housing with a longitudinal axis and a measurement display. The multi-meter further includes a clamp arm type current measuring instrument. The clamp arms are generally aligned with the longitudinal axis of the multi-meter housing. The multi-meter also includes a non-contact infrared temperature measurement device contained in a module attached to the stationary clamp arm of the current measuring instrument. The module is arranged so that the non-contact infrared temperature measurement instrument receives a cone of infrared energy along the longitudinal axis and the cone of infrared energy is not obstructed by the housing or clamp arms.

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Номер записи: 28
22-08-2013 дата публикации

Digital Multimeters Including A Remote Display

Номер: US20130214764A1
Автор: Eng Edmond, Marzynski Matthew
Принадлежит: FLUKE CORPORATION

A digital multimeter includes a body having a function selector and a first coupler and includes a head having a display and a second coupler. The function selector selects a parameter to be measured, and the display displays a measurement corresponding to the parameter to be measured. The first and second couplers are engaged in a first arrangement joining the body and the head, and the first and second couplers are disengaged in a second arrangement separating the body and the head. 1. A digital multimeter , comprising:a body including a first coupler, the body being configured to measure an electrical parameter; anda head including a display and a second coupler, the display being configured to display a measurement corresponding to the parameter to be measured;wherein the first and second couplers are engaged in a first rail/slot arrangement joining the body and the head, and the first and second couplers are disengaged in a second rail/slot arrangement separating the body and the head,and wherein the digital multimeter is operational in the first arrangement and in the second arrangement.2. The digital multimeter of claim 1 , further comprising a wireless link electrically coupling the function selector and the display.3. The digital multimeter of wherein the body comprises a hazardous voltage indicator and the display is configured to display a hazardous voltage warning.4. The digital multimeter of wherein the body includes a first power source and the head includes a second power source.5. The digital multimeter of wherein the first and second couplers comprise a lap joint in the first arrangement.6. The digital multimeter of wherein the head comprises a first support configured to support the remote in the second arrangement.7. The digital multimeter of wherein the first support comprises a permanent magnet.8. The digital multimeter of wherein the body comprises a second support configured to support the body in the second arrangement.9. The digital ...

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Номер записи: 29
05-09-2013 дата публикации

COMPACT, TWO STAGE, ZERO FLUX ELECTRONICALLY COMPENSATED CURRENT OR VOLTAGE TRANSDUCER EMPLOYING DUAL MAGNETIC CORES HAVING SUBSTANTIALLY DISSIMILAR MAGNETIC CHARACTERISTICS

Номер: US20130229171A1
Автор: Gunn Colin N.
Принадлежит: Schneider Electric USA, Inc.

A device for sensing electrical current or voltage in an electrical distribution system using an actively compensated current ratio transformer that includes a first magnetic core having a first permeability and a second magnetic core having a second permeability higher than the first permeability. A primary winding having P turns is coupled with the first and second magnetic cores, a measurement winding having M turns is coupled with the first and second magnetic cores so that current in the primary winding induces current in the measurement winding, and a sense winding having S turns is coupled with the second magnetic core. An amplifier coupled to the sense winding receives a voltage developed across the sense winding and produces a compensation current in response to the received voltage. The amplifier has an output coupled to the sense winding to feed the compensation current through the sense winding to reduce the voltage developed across the sense winding voltage to substantially zero. A burden resistor is coupled to the measurement winding and the sense winding for receiving the sum of the current induced in the measurement winding and the compensation current. 114-. (canceled)15. A device for sensing electrical voltage in an electrical distribution system , said device comprising:an actively compensated voltage ratio transformer comprising:a first magnetic core having a first permeability and a second magnetic core having a second permeability higher than said first permeability,a primary winding comprising P turns coupled with said first and second magnetic cores and connected to a source of voltage to be measured,a measurement winding comprising M turns coupled with said first and second magnetic cores so that currents produced in said primary winding by said connection to said voltage source induces current in said measurement winding,a sense winding comprising S turns coupled with said second magnetic core,an amplifier coupled to said sense winding for ...

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Номер записи: 30
19-09-2013 дата публикации

WAFER STAGE

Номер: US20130241587A1
Автор: Chua Choon Meng, Chua Wah Pheng, Koh Lian Ser, Phang Chee Hong Jacob, Tan Soon Huat
Принадлежит: SEMICAPS PTE LTD

A wafer stage and a method of supporting a wafer for inspection. the wafer stage comprises a platform for supporting a wafer such that a backside of the wafer is suspended above a cavity of the platform; and a support structure disposed substantially within the cavity for supporting a portion of the wafer; wherein the wafer stage is adapted for relative movement of the platform with respect to the support structure for alignment of the wafer with respect to a probe. 1. A wafer analysis apparatus , comprising:a support element having an opening formed therein, the support element for supporting a portion of a wafer such that a back side of the wafer lies across the opening within the support element; anda microscope comprising a solid immersion lens having a diameter of around 2.5 mm or more, wherein either the support element, the microscope or both are adapted for relative movement with each other to align the solid immersion lens to predetermined locations on the back side of the wafer within the opening of the support element, so as to allow the solid immersion lens to press against the back side of the wafer.2. The wafer analysis apparatus of claim 1 , further comprisinga support structure within which the opening of the support element is formed and wherein the support element is provided on the platform, wherein the support element is in the form of a support ring; anda vacuum suction means incorporated in the support element, wherein the top surface of the support element has one or more cavities and wherein the vacuum suction means enables at least partial air evacuation of the one or more cavities of the support substrate that are in contact with the portion of the wafer.3. The wafer analysis apparatus of claim 1 , further comprisinga microscope; andan actuating mechanism coupled to the microscope for tilting the microscope within one or more of first and second planes that are all perpendicular to the support element, wherein the first plane is ...

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Номер записи: 31
26-09-2013 дата публикации

TOUCH PANEL SENSOR

Номер: US20130249571A1
Автор: Kugimiya Toshihiro, Miki Aya, OKUNO Hiroyuki
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Provided is a touch panel sensor which has excellent durability particularly in a longitudinal direction as in the case in which an indentation load is imposed, rarely undergoes the increase in electrical resistivity which may be caused by the disconnection of a wire or as elapse of time, has high reliability and high glossiness, and also has an excellent color-displaying capability. This touch panel sensor comprises a transparent conductive film and a wiring that is connected to the transparent conductive film, wherein the wiring comprises a refractory metal film, an Al alloy film and a high-melting-point metal film in this order when observed from the side of a substrate, and wherein the Al alloy film contains a rare earth element in an amount of 0.05-5 atomic %. It is preferred for the touch panel sensor that the hardness is 2-3.5 GPa and the density of grain boundary triple junctions in the Al alloy structure is 2×10/mmor more. It is also preferred for the touch panel sensor that the Young's modulus is 80-200 GPa and the maximum value of the unidirectional tangential diameter (Feret diameter) of grain boundary is 100-350 nm. It is also preferred for the touch panel sensor that the glossiness is 800% or higher. 1. A touch panel sensor , comprising:a substrate;a transparent conductive film comprising indium tin oxide ITO or indium zinc oxide IZO; anda wiring connected with the transparent conductive film and comprising, in an order from the substrate;a first refractory metal film,an aluminum alloy film comprising at least one rare earth element selected from the group consisting of Nd, Gd, La, Y, Ce, Pr, and Dy in an amount of 0.05 to 5 atomic % anda second refractory metal film,wherein the first and the second refractory metal film comprises at least one metal selected from the group consisting of Mo, Ti, Cr, and W.23-. (canceled)4. The touch panel sensor according to claim 1 , wherein the aluminum alloy film comprises the at least one rare-earth element in an ...

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Номер записи: 32
03-10-2013 дата публикации

System and method to provide talking feature and interactive voice menu in phasing meters

Номер: US20130257414A1
Автор: Adishesha Cs, Edukondalu Yarlagadda, Michael D. Berg
Принадлежит: Honeywell International Inc

A high voltage detection device comprises a probe comprising an electrode for sensing a high voltage electrical line. The electrode is connected in series with a resistor. A meter comprises a housing enclosing a control for measuring parameters of line voltage. The control comprises an input module for connection to the probe to develop a voltage signal. A signal processing module receives the voltage signal and determines parameters of line voltage and drives an audio module. The audio module provides an audio output representing the determined parameters of line voltage.

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Номер записи: 33
10-10-2013 дата публикации

STRUCTURE AND METHOD OF MOUNTING CURRENT SENSOR TO BATTERY CABLE

Номер: US20130265057A1
Автор: HARADA Kunihiro, Shimizu Yasuo, SUGIMORI Yasuhiro
Принадлежит: Yazaki Corporation

A structure of mounting a current sensor to a battery cable includes a battery cable, a thermal fusion bonding tape wound around an outer circumference of the battery cable, and a current sensor. The current sensor includes a housing including a current detecting part configured to detect a current flowing through the battery cable, and a holder configured to hold and compress a thermal fusion bonding tape mounting portion in cooperation with the housing to deform a cross-sectional shape of the thermal fusion bonding tape mounting portion into an elliptical shape. The thermal fusion bonding tape mounting portion is a portion where the thermal fusion bonding tape is wound around the battery cable. Upon a compression between the housing and the holder being released, the elliptical shape of the cross-sectional shape of the thermal fusion bonding tape mounting portion is maintained. 1. A structure of mounting a current sensor to a battery cable , the structure comprising:a battery cable;a thermal fusion bonding tape wound around an outer circumference of the battery cable; and a housing including a current detecting part configured to detect a current flowing through the battery cable, and', 'a holder configured to hold and compress a thermal fusion bonding tape mounting portion in cooperation with the housing to deform a cross-sectional shape of the thermal fusion bonding tape mounting portion into an elliptical shape, the thermal fusion bonding tape mounting portion being a portion where the thermal fusion bonding tape is wound around the battery cable,, 'a current sensor comprising'}wherein upon a compression between the housing and the holder being released, the elliptical shape of the cross-sectional shape of the thermal fusion bonding tape mounting portion, is maintained.2. The structure of mounting a current sensor to a battery cable according to claim 1 , a housing body including the current detecting part, and', 'a cover disposed separated from the current ...

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Номер записи: 34
17-10-2013 дата публикации

Isolated Voltage Transducer

Номер: US20130271125A1
Автор: Insik Jin, James G. Deak, Songsheng Xue, Weifeng Shen, Xiaofeng Lei
Принадлежит: JIANG SU MULTI DIMENSION Tech CO Ltd

A transducer is disclosed for detecting the AC and DC voltage difference between two nodes in an electrical circuit and electronically transmitting the measured voltage difference to an electrical system that is electrically isolated from the common mode potential of the two nodes. The voltage drop between two points in a circuit under test is determined by detecting the current flowing through a resistive shunt coil connected in parallel to the test points. Current through the resistive shunt coil is linearly proportional to the voltage difference between the test points, and it is detected by using a magnetic sensor that is separated from the shunt coil by an insulating dielectric barrier. The transducer can be packaged in a standard integrated circuit package in order to provide a small and low cost voltage transducer for test, measurement, control, and signal-isolation applications.

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Номер записи: 35
31-10-2013 дата публикации

Current detection printed board, voltage detection printed board, current/voltage detection printed board, current/voltage detector, current detector and voltage detector

Номер: US20130285644A1
Автор: Hideo Ito, Shuji Omae, Yoshifumi Ibuki
Принадлежит: Daihen Corp

A current and voltage detection printed board includes a board formed with a penetration hole; a first pattern wire formed at a periphery of the penetration hole; a second pattern wire formed at the periphery of the penetration hole; a plurality of first through holes that penetrate the board between the first and second pattern wires; a third pattern wire formed at the periphery of the penetration hole; a fourth pattern wire formed at the periphery of the penetration hole; and a plurality of second through holes that penetrate the board between the third and fourth pattern wires.

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Номер записи: 36
05-12-2013 дата публикации

CURRENT SENSING DEVICES AND METHODS

Номер: US20130320961A1
Автор: Aldaco Victor, Jin Fuxue, Lint James Douglas, Machado Russell L.
Принадлежит:

A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments are asymmetric in shape and/or composition (e.g., bobbin shape, size, and/or winding configuration) so as to account for asymmetries in the magnetic field distribution around a bus bar, or to accommodate its shape in a more compact form factor, and/or to improve the immunity to the effects of an external magnetic field. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. 1. A current sensing inductive device , comprising:a plurality of coil-like sensing elements, at least one of said sensing elements having a configuration different than that of each of the remainder of the plurality of elements; andwherein the at least one sensing element having the different configuration is configured to be disposed relative to a sensed structure such that one or more electrical attributes of the current sensing inductive device are enhanced.2. The device of claim 1 , wherein the different configuration comprises a different number of winding turns.3. The device of claim 1 , wherein the structure comprises a bus conductor associated with one phase of a multiple-phase electrical system.4. The device of claim 1 , wherein the one or more attributes comprises enhanced current sensing sensitivity.5. The device of claim 1 , wherein the one or more attributes comprises reduced cross-phase interference. This application claims priority to co-pending and co-owned U.S. Provisional Patent Application Ser. No. 61/653,655 filed May 31, 2012 of the same title, which is incorporated herein by reference in its entirety.This application is also related to U.S. patent application Ser. No. 12/954,546 filed Nov. 24, 2010 of the same title ...

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Номер записи: 37
05-12-2013 дата публикации

Measuring Instrument for Testing Voltage

Номер: US20130320962A1
Автор: Ehlers Herbert, Giese Andreas, Herzog Armin, KUEHNE Lars, Rother Grit, Topp Lars
Принадлежит:

A measuring instrument, in particular a voltage tester, is provided having two probes which are arranged in separate housings through which connecting cables extend. The housings are magnetically attractive, because of either a first magnet arranged on a first one of the housings for cooperation with the magnetic material of the other housing, or a corresponding pair of opposed magnets provided in magnetically attractive relation on the two housings, respectively. Recesses are provided in the second housing opposite the corresponding magnets of the first housing. Corresponding pivot ribs extend circumferentially around the housings in the space between the first one magnet and the adjacent probe end, thereby to permit accurate spacing of the probes during the taking of a test measurement. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. A measuring instrument for testing voltages , comprising:{'b': 21', '22, '(a) a pair of hollow probe housings (; ) each having first and second ends;'}{'b': 11', '12, '(b) a pair of probes (; ) mounted in corresponding first ends of said housings, respectively;'}{'b': '3', '(c) a pair of cables () extending from corresponding second ends of said housings, respectively, said cables extending internally of said housings and being connected with said probes, respectively; and'}{'b': '4', '(d) magnetic means () normally biasing said housings together toward a parallel transport condition relative to each other.'}11. A measuring instrument as defined in claim 10 , and further including:{'b': 211', '221', '7, '(e) pivot rib means (; ) arranged in corresponding relation on said probe housings adjacent said first housing ends, thereby to afford pivotal relative movement of said housings to vary the spacing distance () between said probes.'}12. A measuring instrument as defined in claim 11 , wherein each of said pivot rib means extends circumferentially around the ...

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Номер записи: 38
12-12-2013 дата публикации

Current Shunt

Номер: US20130328547A1
Автор: Marten Victor
Принадлежит: SENDYNE CORPORATION

Methods and circuits for reduction of errors in a current shunt are disclosed, for example sensing lines for Kelvin sensing in which the sensing lines are of identical material to the high-resistance portions of the shunt, and welded thereto. This allows application of a current shunt with lower output voltage and thus lower power losses than the contemporary art implementations, while maintaining high accuracy with regard to temperature changes. 1. A method for measurement of a current , the method comprising the steps of:passing the current through a shunt, the passage of the first current through the shunt defining a flow path from a first point to a second point to a third point to a fourth point;the shunt composed between the first point and the second point of a first material;the shunt composed between the third point and the fourth point of a third material;communicating a potential from the second point through an electrical conductor to a fifth point, the conductor composed between the second point and the fifth point of a fourth material;communicating a potential from the third point through an electrical conductor to a sixth point, the conductor composed between the sixth point and the third point of a fifth material;the first and fourth materials being of respective identical composition and being electrically and mechanically bonded, said bond substantially free of anything other than said respective identical composition;the third and fifth materials being of respective identical composition and being electrically and mechanically bonded, said bond substantially free of anything other than said respective identical composition;the first and third materials being electrically conductive;wherein the respective identical composition of the third and fifth materials and the respective identical composition of the first and fourth materials are identical;and wherein the shunt between the second point and the third point is composed of a second material ...

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Номер записи: 39
19-12-2013 дата публикации

Device and method for testing electronic component devices on a carrier or a substrate

Номер: US20130335108A1
Автор: Andreas Nagy, Charles Seguna, Jochen Minwegen, Michael KÖHLER, Peter Killermann, Thomas Kerschl
Принадлежит: Multitest Elektronische Systeme GmbH

A device for testing electronic component devices on a carrier or a substrate, having a positioning and holding device for the earner or the substrate, a test head and a test socket connected thereto, with which multiple simultaneous electronic component devices on the carrier or the substrate are contactable. At least one additional test socket is connected to the test head.

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Номер записи: 40
02-01-2014 дата публикации

ELECTRONIC DEVICE

Номер: US20140002054A1
Автор: HIGASHIKAWA Naoki, Kontani Kazuyoshi
Принадлежит:

An electronic device includes a support that is coupled to a coupled subject and includes a support portion, a substrate supported by the support portion, a current sensor including a signal terminal, wherein the current sensor is connected to the substrate in a manner allowing for a signal to be sent to the substrate through the signal terminal, and a fastener fastening the current sensor to the support portion and the substrate. The current sensor is suspended from the substrate. The support portion is arranged between the substrate and the current sensor. 1. An electronic device comprising:a support that is coupled to a coupled subject and includes a support portion;a substrate supported by the support portion;a current sensor including a signal terminal, wherein the current sensor is connected to the substrate in a manner allowing for a signal to be sent to the substrate through the signal terminal; anda fastener fastening the current sensor to the support portion and the substrate, whereinthe current sensor is suspended from the substrate, andthe support portion is arranged between the substrate and the current sensor.2. The electronic device according to claim 1 , whereinthe support portion includes a support boss projecting toward the substrate,the current sensor includes a coupling boss that is inserted into the support boss, andthe fastener extends through the substrate and the support boss and is fastened to the coupling boss.3. The electronic device according to claim 2 , wherein the support boss is formed integrally with the support portion.4. The electronic device according to claim 2 , whereinthe current sensor includes a plurality of insertion holes through which a detection subject extends, andthe coupling boss and the signal terminal are arranged between adjacent ones of the insertion holes.5. The electronic device according to claim 1 , further comprising a semiconductor element claim 1 , wherein the substrate is a control circuit board that ...

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Номер записи: 41
16-01-2014 дата публикации

An ac current or voltage sensor

Номер: US20140015516A1
Автор: Connor Valentine O'reilly, Thomas Sorensen
Принадлежит: National Microelectronics Applications Centre Ltd

A current sensing device ( 1 ) for producing a voltage indicative of an alternating current flowing in a conductor ( 2 ) comprises a support element ( 5 ) within which a carrier element ( 11 ) is located. The carrier element ( 11 ) comprises a primary substrate ( 12 ) which is formed into a multi-channel arcuate configuration defining a plurality of longitudinally extending channels ( 13 ) with side walls ( 16 ) on which planar coils ( 17 ) are formed on respective opposite first and second major surfaces ( 14,15 ) of the primary substrate ( 12 ). The carrier element ( 11 ) is located and retained in the multi-channel arcuate configuration in a primary retaining recess ( 38 ) in the support element ( 5 ) with the planar coils ( 17 ) defining planes which extend radially from a main central axis ( 6 ) defined by the support element ( 5 ). The planar coils ( 17 ) are connected in series so that the voltages produced in the coils by the alternating current flowing in the conductor ( 2 ) are summed in phase and the sum of the respective voltages is produced across terminals ( 20,21 ) of a first output port ( 19 ). Capacitive plates of a capacitor may also be formed on the first and second major surfaces ( 14,15 ) of the primary substrate ( 12 ) or on a separate substrate in order to produce a signal indicative of the alternating voltage in the conductor ( 2 ).

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Номер записи: 42
23-01-2014 дата публикации

Automatic Aligning Apparatus

Номер: US20140021975A1
Автор: Guo Jan Hong
Принадлежит: WISTRON CORPORATION

An automatic aligning apparatus for aligning aligning components of a first object with aligning components of a second object includes first and second aligning mechanisms. The first aligning mechanism carries the first object and has a guiding groove. The second aligning mechanism has a carrying component that carries the second object, two rear holding plates, and two connecting components, each extending through a through hole in a corresponding rear holding plate and having two clamping parts that clamp a corresponding rear holding plate. The carrying component is movable between an initial position and an aligning position where a guiding stud of the carrying component extends into the guiding groove. 1. An automatic aligning apparatus adapted to align a plurality of first aligning components of a first object with a plurality of second aligning components of a second object , said automatic aligning apparatus comprising:a first aligning mechanism having a rear surface that is formed with at least one guiding groove terminating at a cone-shaped groove end, said first aligning mechanism being adapted for carrying the first object; and a base,', 'a holding frame that is connected slidably to said base and that is slidable in a front-rear direction relative to said base,', a front carrying plate abutting movably against top of said holding frame, said front carrying plate being adapted for carrying the second object and having a front face that confronts said first aligning mechanism and a rear face that is opposite to said front face in the front-rear direction, and', 'at least one guiding stud projecting from said front face and having a cone-shaped distal portion,, 'a carrying component that has'}, 'a pair of rear holding plates that are mounted on said holding frame, that are spaced apart from each other in a left-right direction transverse to the front-rear direction, and that are disposed behind and spaced apart from said rear face of said front carrying ...

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Номер записи: 43
13-02-2014 дата публикации

System including a magnetoelectric device for powering a load or visually indicating an energized power bus

Номер: US20140043016A1
Автор: John A. Kovacich, Sarin Kumar Anakkat Koyilothu
Принадлежит: Eaton Corp

A system includes a power bus, a capacitive divider and a magnetoelectric device. The capacitive divider includes a first capacitance element electrically connected in series with a second capacitance element. The first capacitance element is electrically interconnected with the power bus. The second capacitance element is electrically connected between the first capacitance element and ground. The capacitive divider causes a current to flow between the power bus and the ground when the power bus is energized. The current generates a magnetic field. The magnetoelectric device includes an input inputting the magnetic field and an output outputting a voltage. An indicator or a load is driven by the voltage of the output of the magnetoelectric device.

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Номер записи: 44
13-02-2014 дата публикации

Docking device, docking method

Номер: US20140043053A1
Автор: Cheng Khoon Clement Sng, Werner Huber, Yusman Sugianto
Принадлежит: ESMO AG

A docking device for connecting a semiconductor probe to a semiconductor handler has in each case one probe-side and one handler-side connecting device, a handling device for handling a contact-making device and a coupling device for coupling the connecting devices. The coupling device has a first shifting device, which allows the translational and guided shifting of the probe-side connecting device relative to the handler-side connecting device towards and away from one another.

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Номер записи: 45
27-02-2014 дата публикации

Testing Systems with Automated Loading Equipment and Positioners

Номер: US20140055147A1
Автор: Haylock Jonathan M., Hill Robert J., Panagas Peter G.
Принадлежит:

A test system may be provided in which devices under test are tested using radio-frequency test stations. A test station may include a test host, a test unit coupled to the test host, and a shielded enclosure. The shielded enclosure may contain a test antenna coupled to the test unit via a radio-frequency cable. A computer-controlled loading arm may be used to place a device under test on a positioner within the test enclosure. The test enclosure may have an enclosure door that is opened and closed using a computer-controlled pneumatic cylinder. When the enclosure door is closed, a portion of the enclosure door may actuate one or more levers on the positioner, which may in turn actuate one or more positioning arms to press the device under test against one or more guide surfaces on the positioner, thereby precisely positioning the device under test within the test enclosure. 1. Test apparatus for testing a device under test , comprising:a test enclosure having an enclosure door; anda positioner in the test enclosure that is configured to receive the device under test, wherein the positioner includes at least one positioning arm configured to automatically position the device under test in response to closing the enclosure door.2. The test apparatus defined in claim 1 , further comprising:a computer-controlled door actuator coupled to the enclosure door, wherein the computer-controlled door actuator is configured to control movement of the enclosure door.3. The test apparatus of claim 2 , wherein the computer-controlled door actuator comprises a pneumatic cylinder.4. The test apparatus of claim 1 , further comprising:a computer-controlled loading arm configured to place the device under test on the positioner.5. The test apparatus of claim 4 , wherein the computer-controlled loading arm comprises at least one pneumatic port configured to temporarily adhere the device under test to the computer-controlled loading arm.6. The test apparatus of claim 1 , wherein the ...

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Номер записи: 46
27-02-2014 дата публикации

Using fluid to position a device in a socket for testing

Номер: US20140055156A1
Автор: Charles Fulton, John C. Johnson, Kent M. CARRIE, Philip R. Martin
Принадлежит: Intel Corp

Provided are a method and system for using fluid to position a device in a socket for testing. The device is positioned within a socket and a body is coupled to the socket. Fluid is delivered to a chamber defined in part by the body, a first surface of the device to provide pressure onto the device to move the device within the socket.

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Номер записи: 47
27-03-2014 дата публикации

DETECTION APPARATUS FOR LIGHT-EMITTING DIODE CHIPS

Номер: US20140084931A1
Автор: Hsu Shou-Wen, Li Yun-Li, Sheu Gwo-Jiun, Tsai Tai-Cheng, WU TAI-WEI
Принадлежит: GENESIS PHOTONICS INC

A detection apparatus for light-emitting diode chips comprises a transparent chuck with the light-concentration capability, a probing device and a light-sensing device. The transparent chuck comprises a light-incident plane and a light-emitting plane. The light-incident plane is used to bear a plurality of light-emitting diode chips under detection. The probing device comprises two probe pins and a power supply. The two ends of each probe pin is electrically connected to one of the light-emitting diode chips and the power supply, respectively, to make the light-emitting diode chip emit a plurality of light beams. The light beams penetrate through the transparent chuck by emitting into the incident plane of the transparent chuck. The light-sensing device is disposed on one side of the light-emitting plane of the transparent chuck to receive the light beams which penetrate through the transparent chuck. 1. A detection apparatus for light-emitting diode chips , the detection apparatus at least comprising:a transparent chuck with the light-concentration capability, the transparent chuck comprising a light-incident plane and a light-emitting plane, where the light-incident plane is used to bear a plurality of light-emitting diode chips under detection;a probing device, comprising two probe pins and a power supply, the two ends of each probe pin being electrically connected respectively to one of the light-emitting diode chips and the power supply to enable the light-emitting diode chip to emit a plurality of light beams which are emitted into the light-incident plane; anda light-sensing device, disposed on one side of the light-emitting plane of the transparent chuck to receive the light beams which penetrate through the transparent chuck.2. The detection apparatus for light-emitting diode chips of claim 1 , wherein the area of the light-emitting plane of the transparent chuck is smaller than that of the light-incident plane.3. The detection apparatus for light-emitting ...

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Номер записи: 48
05-01-2017 дата публикации

MEASURING ARRANGEMENT AND METHOD FOR CONTACTLESS ELECTRIC CURRENT MEASUREMENT

Номер: US20170003324A1
Автор: Gopfert Dirk, Nesovic Nebojsa, Volger Jorg
Принадлежит: TESTO AG

In a measuring arrangement () for contactless electric current measurement, it is provided to detect a common signal of a measuring coil arrangement () and a compensating coil arrangement () by a first detection device () and to detect a signal from at least one measuring coil () of the measuring coil arrangement () separately therefrom by a second detection device () (cf. FIG. ). 11234235672. A measuring arrangement () for contactless electric current measurement , comprising a measuring coil arrangement () and a compensating coil arrangement () , a first detection device () that detects a common signal of the measuring coil arrangement () and the compensating coil arrangement () , and a second detection device () that detects a signal of at least one measuring coil ( , ) of the measuring coil arrangement ().2186726735368672111213143. The measuring arrangement () as claimed in claim 1 , further comprising an electric conductor receptacle () claim 1 , wherein the at least one measuring coil ( claim 1 , ) of the measuring coil arrangement () comprises a first measuring coil () and a second measuring coil () located on both sides or on mutually opposite sides ( claim 1 , ) of the electric conductor receptacle () claim 1 , and one claim 1 , or each claim 1 , of the measuring coils ( claim 1 , ) of the measuring coil arrangement () has electrically assigned thereto at least one compensating coil ( claim 1 , claim 1 , claim 1 , ) of the compensating coil arrangement ().3111121314671516171867. The measuring arrangement () as claimed in claim 2 , wherein the compensating coils ( claim 2 , claim 2 , claim 2 , ) assigned to each of the measuring coils ( claim 2 , ) are each arranged at one end ( claim 2 , claim 2 , claim 2 , ) of the measuring coils ( claim 2 , ).41111213146767. The measuring arrangement () as claimed in claim 2 , wherein the compensating coils ( claim 2 , claim 2 , claim 2 , ) assigned to each of the measuring coils ( claim 2 , ) are aligned at an angle of ...

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Номер записи: 49
07-01-2016 дата публикации

Method and Apparatus for Detecting and Compensating Measurement Errors Due to Transformer Saturation in a Meter

Номер: US20160003873A1
Автор: BOUDREAU, JR. Frank J., Kraus Matt E.
Принадлежит:

A current measurement circuit includes an integrator, first and second transformers, and a current measurement unit. The first transformer includes a first winding about a magnetic core. The magnetic core has an opening through which a current to be measured passes. The first winding is configured to generate a first current based on a first flux in the magnetic core. The second transformer includes second and third windings. The second winding is coupled to receive the first current from the first winding. The second winding has a terminal coupled to the third winding. The third winding is coupled to a first input of the integrator circuit. The output of the integrator circuit is operably coupled to provide an error current to the second transformer. The current measurement unit measures the current through the second winding of the second transformer. 1. A current measurement circuit comprising:an integrator circuit having a first input, a second input, and an output;a first transformer including a first winding about a magnetic core, the magnetic core including an opening through which a conductor carrying measurement current passes, the first winding having a first terminal and a second terminal, the first winding configured to generate a first current based on a first flux in the magnetic core;{'b': '106', 'a second transformer including second and third windings, each of the second and third windings having a first terminal and a second terminal, the first terminal of the second winding coupled to receive the first current from the first terminal of the first winding , the second terminal of the second winding coupled to the second terminal of the third winding, the first terminal of the third winding coupled to the first input of the integrator circuit; and'}a current measurement unit operably coupled to measure the current through the second winding of the second transformer;wherein the output of the integrator circuit is operably coupled to provide an error ...

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Номер записи: 50
04-01-2018 дата публикации

Reel Device

Номер: US20180003740A1
Автор: Shih-Hsiang Chien
Принадлежит: Peaceful Thriving Enterprise Co Ltd

A reel device is a casing device for rollingly storing wire. The casing has a turnplate and is coupled with a measuring model. The measuring model has a function of testing the external circuit or power source plug and providing warning or presenting information regarding the external circuit or power source plug.

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Номер записи: 51
13-01-2022 дата публикации

Test carrier and carrier assembling apparatus

Номер: US20220011340A1
Автор: Kazuya Ohtani, Toshiyuki Kiyokawa
Принадлежит: Advantest Corp

A test carrier carried in a state of accommodating a device under test (DUT) includes: a carrier body that holds the DUT; and a lid member that covers the DUT and is attached to the carrier body. The lid member includes a through-hole for sucking the DUT that is provided to face the DUT and penetrating through the lid member.

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Номер записи: 52
13-01-2022 дата публикации

Test carrier and carrier assembling apparatus

Номер: US20220011343A1
Автор: Kazuya Ohtani, Toshiyuki Kiyokawa
Принадлежит: Advantest Corp

A test carrier carried in a state of accommodating a device under test (DUT) includes: a carrier body that holds the DUT; and a lid member that covers the DUT and is attached to the carrier body. The lid member includes: a plate-like main body; and a pusher protruding from the main body in a convex shape.

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Номер записи: 53
13-01-2022 дата публикации

Signal-processing circuit

Номер: US20220011349A1
Автор: JAMY Roman, TRETHAN Stefan
Принадлежит:

The invention relates to a signal-processing circuit (), comprising at least one signal path () between an input () and an output () of the signal-processing circuit (), wherein: the signal path () has a first passive integrating element () and an active integrator (); the active integrator () is designed as a non-inverting active integrator (); the first passive integrating element () and the active integrator () are connected in series within the signal path (). According to the invention, the signal path () additionally has a second passive integrating element () and a differentiating element (). 112341256665626527207. Signal-processing circuit () having at least one signal path () between an input () and an output () of the signal-processing circuit () , wherein the signal path () comprises a first passive integrating element () and an active integrator () , wherein the active integrator () is designed as a non-inverting active integrator () , wherein the first passive integrating element () and the active integrator () are connected in series within the signal path () , characterized in that the active integrator () is designed for integrating signal components of an input signal having a frequency between 0 Hz and a first cut-off frequency f , and in that the first passive integrating element () is designed for integrating signal components having a frequency above the first cut-off frequency f , in that the signal path () further comprises a second passive integrating element () and a differentiating element () and in that the second passive integrating element () is designed for integrating signal components of the input signal with a frequency which lies only between the first cut-off frequency fand a second cut-off frequency f , wherein the second cut-off frequency f is greater than the first cut-off frequency f.23.-. (canceled)41207. Signal-processing circuit () according to claim 1 , characterized in that the differentiating element () is designed to ...

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Номер записи: 54
13-01-2022 дата публикации

METHOD AND APPARATUS FOR SIMULATING AND DESIGNING STRUCTURE PARAMETERS OF AIR-CORE COIL AND ELECTRONIC DEVICE

Номер: US20220011350A1
Автор: DI Qingyun, KANG Lili, LIU Zhiyao, WANG Zhongxing, YIN Xiong, ZHANG Tianxin
Принадлежит:

The present invention discloses a method and apparatus for simulating and designing structural parameters of an air-core coil. The method for simulating and designing structural parameters of the air-core coil includes: building an impedance function of the air-core coil according to a structural parameter variable, the air-core coil being of a differential structure and being wound in a completely parallel winding fashion; building an index function of the air-core coil by calculating an equivalent bandwidth, sensitivity and an equivalent noise power spectrum by means of the impedance function. The method is intuitive, and makes calculation of the optimized technological and structural parameters easier and more convenient, thus reducing the amount of calculation and shortening the calculation time. 1. A method for simulating and designing structure parameters of an air-core coil , comprising:building an impedance function of an air-core coil according to structure parameters, the air-core coil being of a differential structure and being wound in a completely parallel winding fashion;building a target function of the air-core coil by calculating an equivalent bandwidth, sensitivity and an equivalent noise power spectrum by means of the impedance function;building a qualified function with reference to the target function and structure parameters limit by using a mass and/or volume limit; andacquiring structure parameters of the air-core coil by calculating an optimal solution of the qualified function.3. The method according to claim 1 , wherein said building the target function of the air-core coil by calculating the equivalent bandwidth claim 1 , the sensitivity and the equivalent noise power spectrum by means of the impedance function specifically comprises:building an equivalent bandwidth relation function, a sensitivity relation function and an equivalent noise power spectral density relation function by calculating the equivalent bandwidth, the sensitivity ...

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Номер записи: 55
13-01-2022 дата публикации

Calibrator lead set for automated calibration

Номер: US20220013970A1
Автор: Christopher J. Gillette, JR., Travis J. Tom, William J. Britz
Принадлежит: Fluke Corp

A calibrator lead set, which electrically couples a first device and a second device during calibration of the second device, includes a cable having multiple wires, a first interface connector coupled to a first end of the wires of the cable, and a plurality of second interface connectors coupled to a second end of the wires that is opposite the first end of the wires. The first interface connector includes a connector retaining portion, multiple connection terminals extending from the connector retaining portion, and a sheath extending from the connector retaining portion and surrounding the connection terminals extending from the connector retaining portion. The sheath may be transparent to facilitate positioning of the connection terminals of the first interface connector. The second interface connectors may include a first sheathed, double banana plug connector and a second sheathed, double banana plug connector stackable on the first sheathed, double banana plug connector.

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Номер записи: 56
05-01-2017 дата публикации

COOKING APPLIANCE

Номер: US20170006667A1
Автор: Anton Falcon Daniel, Hernandez Blasco Pablo Jesus, Llorente Gil Sergio, Puyal Puente Diego
Принадлежит: BSH HAUSGERÄTE GMBH

A cooking appliance apparatus includes at least one current supply line, and at least one current sensor unit configured to measure a high-frequency current in the at least one current supply line. The at least one current sensor has a first sensor inductance, at least one second sensor inductance, and at least one conduction path, which connects the first sensor inductance to the at least one second sensor inductance in an electrically conducting manner. 113-. (canceled)14. A cooking appliance apparatus , comprising:at least one current supply line; andat least one current sensor unit configured to measure a high-frequency current in the at least one current supply line, said at least one current sensor having a first sensor inductance, at least one second sensor inductance, and at least one conduction path, which connects the first sensor inductance to the at least one second sensor inductance in an electrically conducting manner.15. The cooking appliance apparatus of claim 14 , constructed in the form of a cooktop apparatus.16. The cooking appliance apparatus of claim 14 , wherein a first magnetic field claim 14 , generated by a hypothetical current flow through the first sensor inductance claim 14 , cancels out a second magnetic field generated by a hypothetical current flow through the at least one second sensor inductance claim 14 , at least at one point.17. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance have at least essentially identical inductance values.18. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance are at least essentially identical.19. The cooking appliance apparatus of claim 14 , wherein the first sensor inductance and the at least one second sensor inductance are connected antiserially.20. The cooking appliance apparatus of claim 14 , wherein at least one of the first and second sensor ...

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Номер записи: 57
20-01-2022 дата публикации

Mutual Inductance-Type Current Sensing

Номер: US20220018878A1
Автор: Adam Joseph, Dames Andrew, England Mark
Принадлежит:

Mutual inductance-type current sensing apparatus () is described which includes a mutual inductance current sensor () having a first transfer function. The apparatus () also includes a low-pass filter () which receives a signal from the current sensor (). The low-pass filter () has a second transfer function configured to attenuate one or more harmonic components of the signal. The apparatus () also includes an analogue-to-digital converter () which receives and digitises a filtered signal output from the low-pass filter. The apparatus () also includes a controller () configured to process a digitised signal from the analogue-to-digital converter () using a digital processing chain configured to compensate for the frequency and phase responses of the first transfer function and the second transfer function. 1. Apparatus comprising:a mutual inductance current sensor having a first transfer function;a low-pass filter which receives a signal from the current sensor, the low-pass filter having a second transfer function configured to attenuate one or more harmonic components of the signal;an analogue-to-digital converter which receives and digitises a filtered signal output from the low-pass filter;a controller configured to process a digitised signal from the analogue-to-digital converter using a digital processing chain configured to compensate for the frequency and phase responses of the first transfer function and the second transfer function;wherein the apparatus is for measuring a signal corresponding to an alternating current having a fundamental frequency and wherein the apparatus is configured to measure up to a predetermined harmonic of the fundamental frequency;wherein the second transfer function of the low-pass filter has a −3 dB corner frequency which lies between the fundamental frequency and the predetermined harmonic.2. Apparatus according to claim 1 , wherein the digital processing chain comprises a first digital filter stage having a third transfer ...

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Номер записи: 58
08-01-2015 дата публикации

Highly Accurate Current Measurement

Номер: US20150008902A1
Автор: Knoedgen Horst, Kronmueller Frank
Принадлежит: Dialog Semiconductor GmbH

The present document relates to the measurement of the current through a transistor. In particular, the present document relates to a circuit arrangement which allows an accurate measurement of the current through a power transistor. A circuit arrangement is described. The circuit arrangement is configured to provide an indication of a current flowing through a pass switch, when the pass switch is arranged in parallel to the circuit arrangement. The circuit arrangement comprises a matching unit which comprises a switch bank comprising a plurality of parallel reference switches; a resistor bank comprising a plurality of serial reference resistors; and a reference current source configured to provide a reference current flowing through the switch bank and the resistor bank. The resistor bank and the switch bank are arranged in series. The switch bank is adapted in accordance to a voltage dependent resistance of the pass switch, and the resistor bank is adapted in accordance to a voltage independent resistance of the pass switch.

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Номер записи: 59
08-01-2015 дата публикации

PROBER FOR TESTING DEVICES IN A REPEAT STRUCTURE ON A SUBSTRATE

Номер: US20150008948A1
Автор: Giessmann Sebastian, Werner Frank-Michael, Zieger Matthias
Принадлежит:

A prober for testing devices in a repeat structure on a substrate is provided with a probe holder plate, probe holders mounted on the plate, and a test probe associated with each holder. Each test probe is displaceable via a manipulator connected to a probe holder, and a substrate carrier fixedly supports the substrate. Testing of devices, which are situated in a repeat structure on a substrate, in sequence without a substrate movement and avoiding individual manipulation of the test probes in relation to the contact islands on the devices, is achieved in that the probe holders are fastened on a shared probe holder plate and the probe holder plate is moved in relation to the test substrate. 1. A prober for testing devices in a repeat structure on a substrate , the prober comprising:a substrate carrier configured to retain the substrate;a plurality of probe holders, wherein each of the plurality of probe holders is configured to retain a test probe of a plurality of test probes, and further wherein each of the plurality of probe holders includes a manipulator configured to move the test probe of the plurality of test probes responsive to a motion of an adjustment shaft; anda probe holder plate, wherein each of the plurality of probe holders is operatively attached to the probe holder plate, wherein the probe holder plate is contained within a vacuum chamber, and further wherein the probe holder plate is configured to translate relative to the substrate without changing a relative orientation of the plurality of test probes with respect to one another.2. The prober of claim 1 , wherein the adjustment shaft includes a linkage that extends to an outside of the vacuum chamber claim 1 , wherein the linkage is configured to control the motion of the adjustment shaft claim 1 , and further wherein the linkage is configured to provide for translation of the probe holder plate relative to the vacuum chamber without changing a relative orientation of the plurality of test ...

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Номер записи: 60
14-01-2016 дата публикации

GROUND OFFSET MONITOR AND COMPENSATOR

Номер: US20160011234A1
Автор: Burns Adam, Mkrtchyan Edvard, Toffolon Dino Anthony
Принадлежит: Synopsys, Inc.

Methods and systems are described for monitoring and compensating an offset between a reference voltage used in a first device and a corresponding reference voltage used in a second device. The first device can include offset circuitry. The offset circuitry receives two voltage signals. The first voltage signal is equal to a first voltage value that is used as a reference voltage in the first device. The second voltage signal can be a time-varying voltage signal that has a known relationship with a second voltage value that is used as a reference voltage in the second device. The offset circuitry can then determine the second voltage value from the second voltage signal, and output an offset value based on a difference between the first voltage value and the second voltage value. 1. A circuit , comprising:a ground-offset-monitor circuit to determine an offset voltage value based on a difference between a first reference voltage value of a first device and a second reference voltage value of a second device, wherein the ground-offset-monitor circuit receives a voltage signal from the second device, and wherein the ground-offset-monitor circuit determines the second reference voltage value of the second device based on a known relationship between the voltage signal received from the second device and the second reference voltage value of the second device; anda power management circuit to adjust an amount of current that is used for charging a battery of the first device based on the offset voltage value.2. The circuit of claim 1 , wherein the ground-offset-monitor circuit comprises:sampling circuitry to determine multiple voltage samples by sampling the voltage signal received from the second device at multiple time instances; andcircuitry to determine the second reference voltage value based on the multiple voltage samples.3. The circuit of claim 1 , wherein the voltage signal received from the second device is a time-varying voltage signal claim 1 , and the ground ...

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Номер записи: 61
14-01-2016 дата публикации

METHOD OF INTERFACING AN LC SENSOR AND RELATED SYSTEM

Номер: US20160011235A1
Автор: CONDORELLI Riccardo, MANGANO Daniele
Принадлежит:

A method of interfacing an LC sensor with a control unit is described. The control unit may include first and second contacts, and the LC sensor may be connected between the first and second contacts. The method may include starting the oscillation of the LC sensor, and monitoring the voltage at the second contact, in which the voltage at the second contact corresponds to the sum of the voltage at the first contact and the voltage at the LC sensor. The voltage at the first contact may be varied such that the voltage at the second contact does not exceed an upper voltage threshold and does not fall below a lower voltage threshold. 114-. (canceled)15. A method of interfacing an LC sensor with a controller , the controller comprising first and second contacts , and the LC sensor being coupled between the first and second contacts , the method comprising:starting an oscillation of the LC sensor;monitoring a voltage at the second contact, the voltage at the second contact corresponding to a sum of a voltage at the first contact and a voltage associated with the LC sensor; andvarying the voltage at the first contact so that the voltage at the second contact does not exceed an upper voltage threshold and does not fall below a lower voltage threshold.16. The method of wherein varying the voltage at the first contact comprises generating a counter-oscillation at the first contact claim 15 , the counter-oscillation being phase-shifted with respect to the oscillation of the LC sensor.17. The method of wherein varying the voltage at the first contact comprises:when the voltage at the second contact reaches the upper voltage threshold, decreasing the voltage at the first contact; andwhen the voltage at the second contact reaches the lower voltage threshold, increasing the voltage at the first contact.18. The method of wherein the controller comprises a clamping circuit defining the upper voltage threshold and the lower voltage threshold.19. The method of wherein the clamping ...

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Номер записи: 62
11-01-2018 дата публикации

DEVICE FOR MEASURING ELECTRIC CURRENTS IN ELECTRICAL CONDUCTORS

Номер: US20180011129A1
Автор: HOUBRE Pascal, Larcher Patrick
Принадлежит: Schneider Electric Industries SAS

A device for measuring electric currents includes multiple current sensors of Rogowski type, each suitable for measuring an electric current flowing through an electrical conductor, these current sensors being in adjacent pairs and each including coils for measuring the current and a central aperture for receiving the corresponding electrical conductor. Each current sensor includes two of the coils, which coils are positioned in parallel and facing one another on opposite edges of the central aperture and two ferromagnetic bars extending between ends of the coils, perpendicularly to a longitudinal axis of the coils. 2. The measuring device according to claim 1 , wherein each current sensor has a ferromagnetic bar in common with the immediately adjacent current sensor.3. The measuring device according to claim 1 , wherein the device comprises first and second armatures arranged parallel to each other and common to all the current sensors of the device claim 1 , the two coils of each current sensor being arranged on the first and second armatures claim 1 , respectively.4. The measuring device according to claim 1 , wherein each of the first and second armatures have a rectilinear part claim 1 , and coils being arranged on these first and second armatures by winding about this rectilinear part.5. The measuring device according to claim 4 , wherein both the first and second armatures comprise housings each adapted to receive one end of one of the ferromagnetic bars.6. The measuring device according to claim 4 , wherein the first and second armatures are identical and each comprise fastening elements claim 4 , adapted for securing together the first and second armatures to form the measuring device.7. The measuring device according to claim 3 , wherein the first and second armatures each comprise a main part of rectilinear shape and secondary parts which protrude from the main part perpendicularly to the main part claim 3 , and coils being formed by winding on the first ...

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Номер записи: 63
27-01-2022 дата публикации

ENCAPSULATED PRINTED CIRCUIT BOARD ASSEMBLY

Номер: US20220030701A1
Автор: Eggert-Richter Sebastian, Gravermann Mark, Stalder Michael H., Stollwerck Gunther A. J., Weichold Jens
Принадлежит:

Encapsulated PCB assembly () for electrical connection to a high- or medium-voltage power conductor in a power distribution network of a national grid, comprising a) a PCB (), delimited by a peripheral edge () and comprising a high-tension pad () on a voltage of at least one kilovolt, b) an electrically insulating encapsulation body () in surface contact with, and enveloping, the high-tension pad and at least a portion of the PCB edge adjacent to the high-tension pad, c) a shielding layer () on an external surface () of the encapsulation body and for being held on electrical ground or on a low voltage to shield at least a low-voltage portion of the PCB. The high-tension pad extends to the peripheral edge of the PCB. 1. Encapsulated printed circuit board assembly for electrical connection to a high- or medium-voltage power conductor in a power distribution network of a national grid , the printed circuit board assembly comprising:a) a printed circuit board (PCB), delimited by a peripheral edge and having a first major surface and an opposed second major surface, and comprising a high-tension pad, on the first major surface, wherein in use the high-tension pad is on a voltage of at least one kilovolt,b) an electrically insulating encapsulation body in surface contact with, and enveloping, the high-tension pad and at least a portion of the peripheral edge adjacent to the high-tension pad,c) a conductive low-voltage shielding layer, arranged on a first surface region of an external surface of the encapsulation body and for being held on electrical ground or on a low voltage to shield at least a low-voltage portion of the PCB,wherein the high-tension pad extends to the peripheral edge of the PCB.2. PCB assembly according to claim 1 , wherein the peripheral edge comprises claim 1 , in the plane of the PCB claim 1 , a recessed portion and a non-recessed portion claim 1 , connected with each other by a recessing portion claim 1 , and wherein the high-tension pad extends to ...

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Номер записи: 64
10-01-2019 дата публикации

Diagnostic circuit test device

Номер: US20190011501A1
Автор: David Barden, Joshua CARTON, Wayne Russell
Принадлежит: Power Probe Tek LLC

An apparatus is provided for a diagnostic circuit test device having multi-meter functionality and being adapted to provide current sourcing to an electrical system for selective measurement of a plurality of parameters thereof in powered and unpowered states. The diagnostic circuit test device comprises a conductive probe element configured to be placed into contact with the electrical system and provide an input signal thereto. A power supply is interconnected between an internal power source and the conductive probe element. Processors are electrically connected to the conductive probe element and configured to manipulate the input signal provided to the electrical system and receive an output signal in response to the input signal. The output signal is representative of at least one of the parameters of the electrical system. A display device is configured to display a reading of the output signal which is representative of the parameter.

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Номер записи: 65
10-01-2019 дата публикации

WIRELESS POWER TRANSFER METERING

Номер: US20190011523A1
Автор: AVESTRUZ Al-Thaddeus, Chu Sung Yul, Haney Spencer
Принадлежит: The Regents of the University of Michigan, Univers ity of Michigan Office of Technology Transfer

A system measures wireless power transfer between a transmitter and a receiver. The system includes a sensor circuit including a sensor. The sensor is configured and positioned to generate sensor data indicative of a field. The field is generated in connection with the wireless power transfer. The system further includes a processor coupled to the sensor circuit and configured to determine a power measurement based on the sensor data. The processor is further configured to determine misalignment of the transmitter or the receiver. The processor is also configured to correct an estimate of the power measurement based on the misalignment. 1. A system for measuring wireless power transfer between a transmitter and a receiver , the system comprising:a sensor circuit comprising a sensor, the sensor being configured and positioned to generate sensor data indicative of a field, the field generated in connection with the wireless power transfer; anda processor coupled to the sensor circuit and configured to determine a power measurement based on the sensor data.2. The system of claim 1 , wherein the sensor is positioned between the transmitter and the receiver.3. The system of claim 1 , wherein the sensor circuit comprises a plurality of sensors configured and positioned to generate sensor data indicative of the field claim 1 , the plurality of sensors comprising the sensor.4. The system of claim 3 , wherein the processor is configured to determine the power measurement using pair-wise products of the plurality of sensors.5. The system of claim 3 , wherein each sensor of the plurality of sensors includes a respective capacitive sense plate such that the field is an electric field.6. The system of claim 1 , wherein the sensor comprises a sense coil.7. The system of claim 1 , wherein the field comprises a magnetic field.8. The system of claim 1 , wherein the processor is further configured to determine a misalignment of the transmitter or the receiver claim 1 , and to correct ...

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Номер записи: 66
15-01-2015 дата публикации

TEMPERATURE COMPENSATED CURRENT MEASUREMENT

Номер: US20150015244A1
Автор: Aberdeen Joanne Marie, Hewson Christopher Rene, Ray William Frederick
Принадлежит:

A temperature compensated current measurement device comprises a Rogowski coil having a terminating impedance arranged to adjust the attenuation of the coil to balance changes in coil sensitivity so that the output voltage indicative of measured current remains substantially unchanged, the terminating impedance having different values above and below a threshold frequency. 1. A current measuring device comprising a conductive coil , said conductive coil being arranged to produce a voltage as a result of a current being measured by the current measuring device , said conductive coil having a temperature-dependent coil sensitivity factor associated therewith;the device further comprising a terminating impedance connected to the conductive coil, said terminating impedance being arranged to attenuate the voltage produced by the conductive coil by a temperature-dependent attenuation factor and to connect the conductive coil to an output; said output being arranged to produce an output indicative of the current being measured;wherein the terminating impedance is arranged so that, when there is a temperature change in the conductive coil which causes a corresponding change in the coil sensitivity factor, the attenuation factor also changes so that a value of the output voltage remains substantially unchanged, and the terminating impedance has a first impedance value below a predetermined threshold frequency for the output and a second, different impedance value above said predetermined threshold frequency.2. A current measuring device as claimed in wherein the conductive coil comprises a Rogowski coil.3. A current measuring device as claimed in wherein the Rogowski coil comprises any of: a clip-around coil claim 2 , a closed-loop coil claim 2 , a printed circuit Rogowski coil and a coil wound on a non-conductive former.4. A current measuring device as claimed in wherein the output includes an integrator.5. A current measuring device as claimed in wherein the terminating ...

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Номер записи: 67
15-01-2015 дата публикации

WAFER TESTING SYSTEM AND ASSOCIATED METHODS OF USE AND MANUFACTURE

Номер: US20150015292A1
Автор: Durbin Aaron, Johnson Morgan, Keith David
Принадлежит:

A wafer testing system and associated methods of use and manufacture are disclosed herein. In one embodiment, the wafer testing system includes an assembly for releaseably attaching a wafer to a wafer translator and the wafer translator to an interposer by means of separately operable vacuums, or pressure differentials. The assembly includes a wafer translator support ring coupled to the wafer translator, wherein a first flexible material extends from the wafer translator support ring so as to enclose the space between the wafer translator and the interposer so that the space may be evacuated by a first vacuum through one or more first evacuation paths. The assembly can further include a wafer support ring coupled to the wafer and the chuck, wherein a second flexible material extends from wafer support ring so as to enclose the space between the wafer and the wafer translator so that the space may be evacuated by a second vacuum through one or more second evacuation pathways. 1. A method for establishing contact with a wafer having a bond pad , comprising:placing an interposer to face a wafer translator,placing the wafer translator to face toward the wafer, the wafer translator having a terminal facing the bond pad of the wafer;sealing a first space between the interposer and the wafer translator using a first seal; anddrawing a first vacuum on the first space to contact the bond pad of the wafer with the terminal of the wafer translator.2. The method of claim 1 , further comprising:sealing a second space between the wafer and the wafer translator using a second seal;establishing a second vacuum in the second space; andcontacting the bond pad of the wafer with the terminal of the wafer translator under the first and second vacuums.3. The method of claim 2 , further comprising adjusting at least one of the first and second vacuums based on a target contact force between the terminal and the bond pad.4. The method of claim 2 , further comprising adjusting at least one ...

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Номер записи: 68
03-02-2022 дата публикации

LOW-VOLTAGE POWER SWITCH AND ARC FAULT DETECTION UNIT WITH COMPENSATION DUE TO PHASE SHIFTING

Номер: US20220034942A1
Автор: Meyer Joerg, SCHEGNER Peter, WENZLAFF Karsten
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A Rogowski coil is used for determining the magnitude of the electrical current of a conductor of a low-voltage AC circuit, which outputs an analogue voltage which is equivalent to the magnitude of the electrical current of the conductor. The Rogowski coil is connected to an analogue integrator, which is followed by an analogue-digital converter, which converts the integrated analogue voltage into a digital signal which is further processed by a microprocessor in such a way that the phase shift generated by the Rogowski coil and the components connected downstream of the Rogowski coil is compensated such that there are in-phase current values for the detection of error situations in order to protect the low-voltage AC circuit, in particular for a low-voltage power switch or an arc fault detection unit. 1. A low-voltage power switch for a low-voltage AC circuit , comprising:a Rogowski coil, for ascertaining an electrical current level of a conductor of the low-voltage AC circuit, to output an analog voltage equivalent to the electrical current level of the conductor;an interrupter unit including contacts for interrupting the low-voltage AC circuit; andan electronic trip unit including a microprocessor connected to the Rogowski coil and the interrupter unit, configured to initiate an interruption of the low-voltage AC circuit upon at least one of current limit values and current-time-voltage limit values of the phase conductor being exceeded,the Rogowski coil being connected to an analog integrator followed by an analog-digital converter, to convert the integrated analog voltage into a digital signal, andwhereinthe microprocessor is configured to process the digital signal to compensate for phase shift generated by the Rogowski coil and by components that follow the Rogowski coil, so that correct-phase current values are present for recognition of fault situations to protect the low-voltage AC circuit.2. The low-voltage power switch of claim 1 , whereinthe recognition ...

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Номер записи: 69
19-01-2017 дата публикации

Electrical Sensor

Номер: US20170016936A1
Автор: Neville Kyme, Rutton Homi Patel
Принадлежит: REPL INTERNATIONAL Ltd

Power distribution networks increasingly need to monitor the electrical power at points distributed around the network in order to cope with feed-in tariffs, etc. A unit which senses the electrical characteristics of the network can also be used to sense other environmental characteristics of the electrical network at that location. We describe an electrical sensor unit ( 50 ) attachable to an insulated electrical distribution cable ( 88 ) and comprising at least one electrical sensor for at least one of current, voltage, and phase angle of electrical power being transmitted in the cable ( 88 ), a source of electrical power for driving the electrical sensors, and a socket for receiving an environmental sensor and comprising connections for the source of electrical power. This means that the unit can be deployed as a standard item at a cost comparable with a simple electrical sensor, and then if and when environmental sensing is desired at the location in question, then an environmental sensor can be added via the socket in order to upgrade that particular location. It is convenient for the unit to comprise an annular body defining an axial passage through which an electrical conductor ( 90 ) can pass, the annular body housing an electrical sensor in the form of a current sensor including a loop extending around the axial passage. This provides a convenient form for the unit which allows it to be fitted in place over an existing cable ( 88 ) without severing the cable. The environmental sensor can sense at least one of temperature, partial discharge, humidity, atmospheric pressure. Thus, the socket can be fitted a sensor apt to detect any or some of these, or a battery, or a blanking plug ( 80 ), for example if neither a battery nor a sensor is needed at that time.

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Номер записи: 70
19-01-2017 дата публикации

INSULATION RESISTANCE MEASURING DEVICE AND METHOD CAPABLE OF RAPIDLY MEASURING INSULATION RESISTANCE

Номер: US20170016951A1
Автор: Kim Young-Hwan, LEE Sang-hoon, LEE Tae-Joong, Park Jae-Dong, Sung Chang-Hyun, YOON Ho-Byung
Принадлежит: LG CHEM, LTD.

Disclosed are insulation resistance measuring device and method that are capable of rapidly and accurately calculating insulation resistance, despite parasitic capacitor components present in a battery pack. 1. An insulation resistance measuring device , comprising:a positive electrode test resistor connected to a positive electrode node of a battery assembly;a negative electrode test resistor connected to a negative electrode node of the battery assembly;a switch unit connecting the positive electrode test resistor and the negative electrode test resistor to the positive electrode node and the negative electrode node of the battery assembly respectively such that a certain circuit is formed;a switch control unit configured to control the switch unit;a voltage measurement unit configured to measure a first voltage applied to the positive electrode test resistor and a second voltage applied to the negative electrode test resistor; anda voltage estimation unit configured such that, after the certain circuit is formed, the voltage estimation unit under controlling of the switch control unit reads at least one voltage among the first voltage and the second voltage measured at the voltage measurement unit for at least two cycles according to a predetermined cycle, and estimates a final convergence value of at least one voltage among the first voltage and the second voltage by using the read voltage.2. The insulation resistance measuring device of claim 1 , wherein the switch unit comprises a first switch provided on a first line connecting the positive electrode node of the battery assembly to the positive electrode test resistor to be selectively turned on or off; anda second switch provided on a second line connecting the negative electrode node of the battery assembly to the negative electrode test resistor to be selectively turned on or off.3. The insulation resistance measuring device of claim 2 , wherein the certain circuit is any one of a first circuit in which ...

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Номер записи: 71
21-01-2016 дата публикации

HOLDER FOR ANTENNA TESTING

Номер: US20160018438A1
Автор: Chou Hsin-Hung, HU MING-CHIEH
Принадлежит:

A holder for antenna testing includes a track base, an antenna carrying device, and at least one displacement-measuring member. The track base has a track platform and a track module disposed on the track platform. A longitudinal direction of the track module defines a displacing direction. The antenna carrying device is movably disposed on the track module along the displacing direction. The displacement-measuring member is movably disposed on the track platform along the displacing direction and is arranged outside the track module. The displacement-measuring member has a zero point and a distance scale counting from the zero point along the displacing direction. The displacement-measuring member is adjustable to align the zero point to the antenna carrying device.

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Номер записи: 72
21-01-2016 дата публикации

Probe card, and connecting circuit board and signal feeding structure thereof

Номер: US20160018441A1
Автор: Chih-Hao Ho, Hao Wei, Jun-Liang Lai, Wei-Cheng Ku
Принадлежит: MPI Corp

A probe card includes a connecting circuit board, a connector, and a probe. The connecting circuit board includes a substrate having a signal via and a plurality of ground vias, a signal feeding structure disposed on the substrate, and a connecting layer having the connector disposed thereon. The signal feeding structure includes a signal feeding pad and a ground pad, which is connected to the ground via, and has a matching compensation opening having a first side and a second side wider than the first side. The signal feeding pad does not contact the ground pad, and has a first end and a second end wider than the first end. The second end is connected to the signal via. The connecting layer has a signal connecting portion connected to the signal via, and a ground connecting portion connected to the ground vias. The probe is connected to the first end.

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Номер записи: 73
18-01-2018 дата публикации

NONCONTACT VOLTAGE MEASUREMENT APPARATUS

Номер: US20180017597A1
Автор: HEBIGUCHI Hiroyuki
Принадлежит:

A noncontact voltage measurement apparatus includes a sensing electrode to which a voltage corresponding to an alternating current voltage is applied, a feedback electrode, a conductive movable body that is supported so as to be displaceable in accordance with the Coulomb force generated between the movable body and the sensing electrode and the Coulomb force generated between the movable body and the feedback electrode, an elastic force for causing the movable body to return to a predetermined neutral position acting on the movable body, a displacement detection unit configured to detect a displacement of the movable body, a voltage applying unit configured to apply an alternating current voltage to the feedback electrode, and a control unit configured to control the voltage to be output from the voltage applying unit such that a detection result of the displacement from the displacement detection unit approaches a predetermined reference value. 1. A noncontact voltage measurement apparatus for measuring , without being electrically connected to a conductive measurement target , an alternating current voltage applied to the measurement target , the noncontact voltage measurement apparatus comprising:a sensing electrode to which a voltage corresponding to the alternating current voltage is applied;a feedback electrode;a conductive movable body that is supported so as to be displaceable in accordance with the Coulomb force generated between the movable body and the sensing electrode and the Coulomb force generated between the movable body and the feedback electrode, an elastic force for causing the movable body to return to a predetermined neutral position acting on the movable body;a displacement detection unit configured to detect a displacement of the movable body;a voltage applying unit configured to apply a voltage to the feedback electrode; anda control unit configured to control the voltage to be output from the voltage applying unit such that a detection ...

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Номер записи: 74
18-01-2018 дата публикации

NON-CONTACT VOLTAGE MEASUREMENT DEVICE

Номер: US20180017598A1
Автор: HEBIGUCHI Hiroyuki
Принадлежит:

In a non-contact voltage measurement device that can precisely measure an alternating-current voltage with a simple structure, a first capacitor and second capacitor, having mutually correlated capacitances, are respectively formed between a first electrode and a conductor and between a second electrode and the conductor. An alternating-current signal is given between the first electrode and a first reference potential. When a switch is off, a first charge detecting signal matching charges accumulated in the second capacitor by the alternating-current signal is created with the second electrode kept at the first reference potential. When the switch is on, a second charge detecting signal matching charges accumulated in the second capacitor by the alternating-current voltage is created with the second electrode kept at a second reference potential. A measurement of the alternating-current voltage is calculated in a calculating unit, according to the first charge detecting signal and second charge detecting signal. 1. A non-contact voltage measurement device that measures an alternating-current voltage applied to a conductor , without continuity to the conductor , the device comprising:a first electrode that forms a first capacitor between the first electrode and the conductor;a second electrode that forms a second capacitor between the second electrode and the conductor, the second capacitor having a capacitance correlating with a capacitance of the first capacitor;an alternating-current signal source that gives an alternating-current signal between the first electrode and a first reference potential;a charge detecting unit that maintains the second electrode at a certain potential with respect to the first reference potential, and creates a charge detecting signal matching a charge accumulated in the second capacitor;a switch disposed between the first reference potential and a second reference potential used as a reference in measurement of the alternating-current ...

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Номер записи: 75
18-01-2018 дата публикации

E-PIN ATTACHED CURRENT MEASUREMENT COIL

Номер: US20180017600A1
Автор: Lenz Mario, Pfahl Wilfried, Werker Stephan
Принадлежит:

The invention, which relates to an arrangement for current measurement at a current lead-through, addresses the problem of specifying an arrangement for current measurement by means of which a reliable, galvanically isolated measurement of motor phase currents can be carried out, wherein the space requirement of the arrangement is reduced. This problem is resolved thereby that the sensor is a measuring coil and that the measuring coil is disposed on the lead-through contact such that it is galvanically isolated from the same. 1. An arrangement for current measurement at a current lead-through , comprising a planar board in which at least one lead-through contact is disposed , wherein between the planar board and the lead-through contact an electrically insulating casting compound is disposed , a sensor for generating a sensor signal and an amplifier configuration for the amplification of the generated sensor signal , wherein the sensor is a measuring coil and wherein the measuring coil is disposed on the lead-through contact such that the measuring coil is galvanically isolated therefrom.2. An arrangement as in claim 1 , wherein on the lead-through contact a coil former is disposed on the lead through contact on which several wire windings forming the measuring coil are applied.3. An arrangement as in claim 1 , wherein on the lead-through contact an annular magnetic support is disposed on the lead through contact around which several wire windings forming the measuring coil are disposed.420. An arrangement according to as in claim 2 , wherein the coil former or the annular magnetic support is disposed tightly on the lead-through contact () using an adhesive or casting compound.5. An arrangement according to claim 2 , wherein the coil former of the measuring coil comprises a synthetic material or Teflon.629. An arrangement according to claim 3 , wherein the annular magnetic support () is comprised of comprises a ferrite or a ferrite alloy with a permeability greater ...

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Номер записи: 76
17-04-2014 дата публикации

ENERGY MONITORING DEVICE

Номер: US20140103905A1
Автор: HILTON Paul C.M., HUNTER Greg, Johnson Kevin M.
Принадлежит: OutSmart Power Systems, LLC

A device and method are provided for monitoring voltage and current in a continuous conductor. A current sensor is configured to sense current in the continuous conductor. A voltage sense conductor is provided and a guided path is configured to bring the voltage sense conductor into contact with the continuous conductor at a pre-determined orientation. A communication interface is configured to receive information about a common reference voltage from a source, the source being external to the device. A voltage measuring circuit is configured to estimate voltage between a voltage sensed by the voltage sense conductor and the common reference voltage using the information about a common reference voltage. 1. A device for monitoring the voltage on and current in a continuous conductor , said device comprising:a current sensor configured to sense current in said continuous conductor;a voltage sense conductor;a guided path configured to bring said voltage sense conductor into contact with said continuous conductor at a pre-determined orientation;a communication interface configured to receive information about a common reference voltage from a source, wherein said source is external to said device; anda voltage measuring circuit configured to estimate voltage between a voltage sensed by said voltage sense conductor and said common reference voltage using said information about a common reference voltage.2. The device of claim 1 , wherein said voltage sense conductor is an insulation displacement conductor.3. The device of claim 1 , wherein said received information about a common reference voltage is the common reference voltage.4. The device of claim 1 , wherein said current sensor is a Rogowski coil.5. The device of claim 1 , further comprising an energy measurement circuit configured to calculate energy values based on samples of said estimated voltage and samples of said sensed current.6. The device of claim 5 , further comprising a controller circuit configured to ...

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Номер записи: 77
17-04-2014 дата публикации

Ground contact of an integrated circuit testing apparatus

Номер: US20140103952A1
Автор: FOONG Wei Kuong, GOH Kok Sing, Shamal Mundiyath
Принадлежит: JF Microtechnology Sdn Bhd

A ground electrical contact for an integrated circuit (IC) testing apparatus that comprises: a rigid bottom member having two planar surfaces that slope towards each other, so that the bottom member forms a partial wedge shape with the top end of the wedge being narrower than the bottom end; a flexible top member having two arms extending over said bottom member such that the top member forms an inverted U-shape, said two arms having an inwards bias such that an inner surface of each arm is pressed in contact with each planar surface; and a compressible member located between the narrower end of said bottom member and a bifurcation inner surface, which is an inner surface where the two arms bifurcate in the top member. The bottom member and top member are made of an electrically conductive material.

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Номер записи: 78
21-01-2021 дата публикации

CONSTRUCTIVE SYSTEM REGARDING A CAPACITIVE SENSOR

Номер: US20210018537A1
Автор: Bauer Alberto
Принадлежит:

A capacitive voltage sensor assembly includes a first electrode extending along a longitudinal axis, the first electrode including a first end and a second end opposite the first end, a second electrode surrounding the second end of the first electrode, the second electrode including a tubular portion having a first end and a second end opposite the first end, and a base portion coupled to the first end of the tubular portion, and a mass of dielectric insulating material at least partially encapsulating the first electrode and the second electrode. The tubular portion includes a plurality of cantilevered tabs interconnected at the first end of the second electrode. Each tab of the plurality of cantilevered tabs is circumferentially separated from an adjacent tab of the plurality of cantilevered tabs to define a gap therebetween at the second end of the second electrode. 1. A capacitive voltage sensor assembly comprising:a first electrode extending along a longitudinal axis, the first electrode including a first end and a second end opposite the first end; a tubular portion having a first end and a second end opposite the first end, and', 'a base portion coupled to the first end of the tubular portion; and, 'a second electrode surrounding the second end of the first electrode, the second electrode including'}a mass of dielectric insulating material at least partially encapsulating the first electrode and the second electrode,wherein the tubular portion includes a plurality of cantilevered tabs interconnected at the first end of the second electrode, each tab of the plurality of cantilevered tabs circumferentially separated from an adjacent tab of the plurality of cantilevered tabs to define a gap therebetween at the second end of the second electrode.2. The capacitive voltage sensor assembly of claim 1 , wherein the tubular portion includes an insulating layer claim 1 , an inner conductive layer disposed on an inner side of the insulating layer claim 1 , and an outer ...

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Номер записи: 79
21-01-2021 дата публикации

HIGH-FIDELITY VOLTAGE MEASUREMENT USING A CAPACITANCE-COUPLED VOLTAGE TRANSFORMER

Номер: US20210018538A1
Автор: III Edmund O., JR. Robert, Kasztenny Bogdan Z., Lopez, Mallett Travis C., Schweitzer, Skendzic Veselin
Принадлежит: SCHWEITZER ENGINEERING LABORATORIES, INC.

The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. Electrical signals from accessible portions of the CCVT are used to detect traveling waves. Current and/or voltage signals may be used. In various embodiments, a single current may be used. The traveling waves may be used to detect a fault on the electric power delivery system. 1. A system to detect a fault in an electric power delivery system , comprising:a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection;a first current measurement device disposed between the stack of capacitors and the first ground connection, the first current measurement device to provide a first electrical signal corresponding to a first current flowing through the CCVT;a second current measurement device disposed in electrical connection with a parasitic electric flow from the CCVT, the second current measurement device to provide a second electrical signal corresponding to a parasitic current; generate a first voltage signal based on the first electrical signal from the first current measurement device and the second electrical signal from the second current measurement device;', 'identify an incident traveling wave and a reflected traveling wave based on the first voltage signal and the measurement of the primary current;', 'detect a fault based on the incident traveling wave and the reflected traveling wave; and, 'an intelligent electronic device (IED) in electrical communication with the first and second current measurement devices toa protective action module ...

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Номер записи: 80
22-01-2015 дата публикации

UTILIZING CHIP-ON-GLASS TECHNOLOGY TO JUMPER ROUTING TRACES

Номер: US20150022989A1
Автор: DUNPHY Jim, Reynolds Joseph Kurth
Принадлежит: SYNAPTICS INCORPORATED

A chip-on-glass device comprises a chip-on-glass substrate, a metal layer, and a plurality of chip-on-glass connection bumps. The metal layer comprises a plurality of passive jumper routing traces. The plurality of chip-on-glass connection humps is coupled with passive jumper routing traces of the plurality of passive jumper routing traces. 1. A chip-on-glass device comprising:a chip-on-glass substrate;a metal layer comprising a plurality of passive jumper routing traces; anda plurality of chip-on-glass connection bumps coupled with passive jumper routing traces of said plurality of passive jumper routing traces.2. The chip-on-glass device of claim 1 , further comprising:at least one active component.3. The chip-on-glass device of claim 1 , wherein said chip-on-glass substrate comprises:a semi-conducting material.4. The chip-on-glass device of claim 1 , wherein said chip-on-glass substrate comprises:an insulating material.5. The chip-on-glass device of claim 1 , wherein no active components are disposed proximate said chip-on-glass substrate.6. The chip-on-glass device of claim 1 , wherein at least one chip-on-glass implementation of a passive component is disposed proximate said chip-on-glass substrate and no active components are disposed proximate said chip-on-glass substrate.7. The chip as device of claim 1 , wherein said metal layer is the only metal layer of said chip-on-glass device.8. The chip-on-glass device of claim 1 , wherein said metal layer is one of a plurality of metal layers of said chip-on-glass device.9. The chip-on-glass device of claim 1 , wherein said metal layer is configured to passively multiplex a single routing trace into a plurality of routing traces.10. A single-layer capacitive sensor comprising:a sensor substrate;a plurality of receiver electrodes disposed in a first layer above said sensor substrate; anda plurality of transmitter electrodes disposed in said first layer above said sensor substrate; a chip-on-glass substrate;', 'a metal ...

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Номер записи: 81
16-01-2020 дата публикации

COMBINATION OF AN ELECTRICITY CONDUCTING ELEMENT, SUCH AS BUSHING, AND A CONNECTOR CABLE

Номер: US20200020466A1
Автор: Das Amritendu, Jadhav Ranjit, Lammers Arend, Morskieft Elisabeth, Schoonenberg Gerard
Принадлежит:

A combination includes: an electricity conducting element and a connector cable. The electricity conducting elements includes: a body of insulating material; an electrical conductor extending through the body; at least one passive electrical sensor embedded or integrated in the body of insulating material; and at least one shielded connector with one or more terminals arranged on an outer surface of the body, the at least one shielded connector being electrically connected to the at least one passive electrical sensor. The connector cable includes: a first shielded connector with one or more terminals for connecting with the at least one shielded connector; a second shielded connector with one or more terminals for connecting with an appliance or a further connector cable; and electrical components arranged closely to the first shielded connector and electrically connected to the terminals of the first shielded connector. 1. A combination , comprising: a body of insulating material;', 'an electrical conductor extending through the body;', 'at least one passive electrical sensor embedded or integrated in the body of insulating material; and', 'at least one shielded connector with one or more terminals arranged on an outer surface of the body, the at least one shielded connector being electrically connected to the at least one passive electrical sensor, and, 'an electricity conducting element, comprisinga connector cable, 'a first shielded connector with one or more terminals configured to connect with the at least one shielded connector;', 'comprisinga second shielded connector with one or more terminals configured to connect with an appliance or a further connector cable; andelectrical components arranged closely to the first shielded connector and electrically connected to the terminals of the first shielded connector, the electrical components being arranged at a distance from the second shielded connector and being electrically connected via a cable to the ...

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Номер записи: 82
16-01-2020 дата публикации

SELECTABLE POWER SCAVENGING SYSTEMS AND METHODS

Номер: US20200020480A1
Автор: COQUINCO Bernard
Принадлежит:

Methods and systems are presented for configuring a rectifier across a secondary side of a current transformer; configuring circuitry to harvest energy across one or more loads coupled across an output of the rectifier selectively in response to an indication that a variable line current at a primary side of the current transformer is small enough; configuring circuitry to shunt at least a first load of the one or more loads coupled across the output of the rectifier selectively in response to an indication that a line current at the primary side is large enough; and configuring circuitry to harvest energy across the first load of the one or more loads coupled across the output of the rectifier again selectively in response to an indication that a line current at the primary side is again small enough. 1. A power scavenging system comprising:at least one rectifier across a secondary side of a current transformer;circuitry configured to harvest energy across one or more selectively switchable loads coupled across an output of said rectifier selectively in response to an indication that a variable line current at a primary side of said current transformer is small enough;circuitry configured to shunt at least a first selectively switchable load of said one or more selectively switchable loads coupled across said output of said rectifier selectively in response to an indication that a line current at said primary side is large enough; andcircuitry configured to harvest energy across said first selectively switchable load of said one or more selectively switchable loads coupled across said output of said rectifier again selectively in response to an indication that a line current at said primary side is again small enough.2. The power scavenging system of claim 1 , wherein said indications that said variable line current at said primary side is small enough claim 1 , that said line current at said primary side is large enough claim 1 , and that said line current at said ...

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Номер записи: 83
28-01-2016 дата публикации

PROBE SUPPORTING AND ALIGNING APPARATUS

Номер: US20160025774A1
Автор: Meng Jian
Принадлежит:

An apparatus for testing electrical characteristics of a device, having one or more testing sites. The apparatus comprises a nonconductive plate having a through-hole. The through-hole is positioned such that it at least partially overlays one of the one or more testing sites when at least a portion of the bottom surface of the nonconductive plate is adjacent to the device to be tested. The apparatus also comprises a probe positioning body protruding from the top surface of the nonconductive plate and having a through-hole. The probe positioning body is positioned such that the through-hole of the probe positioning body at least partially aligns with the through-hole of the nonconductive plate. 1. A probe supporting apparatus for testing electrical characteristics of a device , the device having one or more testing sites , comprising:a nonconductive plate having a top surface, a bottom surface, and a through-hole, wherein the through-hole is positioned such that the through-hole at least partially overlays one of the one or more testing sites when at least a portion of the bottom surface of the nonconductive plate is adjacent to the device to be tested; anda probe positioning body protruding from the top surface of the nonconductive plate and having a through-hole, wherein the probe positioning body is positioned such that the through-hole of the probe positioning body at least partially aligns with the through-hole of the nonconductive plate for allowing insertion of a probe through both of the through-hole of the probe positioning body and the through-hole of the nonconductive plate;wherein the probe positioning body includes a substantially cylindrical wall of substantially uniform thickness protruding from the top surface of the nonconductive plate for supporting the probe inserted through both of the through-hole of the probe positioning body and the through-hole of the nonconductive plate;wherein the bottom surface of the nonconductive plate includes at least ...

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Номер записи: 84
26-01-2017 дата публикации

System and Method for Monitoring a Power Line without Connecting to Ground

Номер: US20170023619A1
Автор: Roberson Hershel
Принадлежит:

An improved system and method for monitoring power tines without connecting to ground is disclosed herein. An improved sensory assembly can comprise a first end, a second end, a voltage sensor, a current sensor, an analog to digital converter, and a sensory transceiver. The first end can be electrically connectable to a first phase of a power line. The second end can be electrically connectable to a second phase of the power line. The voltage sensor can be capable of measuring a voltage between the first phase and the second phase. The current sensor can be magnetically coupled to the power line. The analog to digital converter that can be capable of receiving a first signal from the voltage sensor, and can be capable of receiving a second signal from the current sensor. 1. An improved sensory assembly comprisinga first end electrically connectable to a first phase of a power line;a second end electrically connectable to a second phase of said power line;a voltage sensor capable of measuring a voltage between said first phase and said second phase;a current sensor magnetically coupled to said power line; receives a first signal from said voltage sensor, said first signal proportional to said voltage;', 'receives a second signal from said current sensor, said second signal proportional to a current on said first phase of said power line;', 'samples said first signal to produce a digital voltage signal, said digital voltage signal representative of said voltage; and', 'samples said second signal to produce a digital current signal representing said current on said first phase; and, 'an analog to digital converter that'}a sensory transceiver electrically connected to said analog to digital converter that wirelessly receives timing device, and transmits wirelessly said digital voltage signal and said digital current signal, said digital voltage signal and said digital current signal comprising timing data related to said timing information.2. The system of wherein each ...

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Номер записи: 85
25-01-2018 дата публикации

MEDIUM-VOLTAGE OR HIGH-VOLTAGE COUPLING

Номер: US20180024168A1
Автор: Hetzler Ullrich, MARIEN Jan, WASSMANN ALEXANDER, WENDT ECKHARD
Принадлежит: ISABELLENHÜTTE HEUSLER GMBH & CO. KG

The invention relates to a coupling for electrically and mechanically connecting medium-voltage or high-voltage components, in particular for voltages of 1 kV to 52 kV, comprising 115-. (canceled)16. A coupling for electrically and mechanically connecting medium-voltage or high-voltage components comprisinga first connecting piece for mechanically and electrically connecting a medium-voltage or high-voltage component,a second connecting piece for mechanically and electrically connecting another medium-voltage or high-voltage component,wherein the two connecting pieces of the coupling belong to complementary connection types, which fit together mechanically, andfurther comprising a low-resistance current sensing resistor, which is built into the coupling and electrically connected between the first connecting piece and the second connecting piece in order to measure a current flow between the first connecting piece and the second connecting piece.17. The coupling according to claim 16 , whereinthe first connecting piece is adapted for mechanically and electrically connecting to a complementary connecting piece of a bushing of a switchgear cabinet, andthe second connecting piece is adapted for mechanically and electrically connecting to a complementary connecting piece of an electrical cable.18. The coupling as claimed in claim 16 , further comprising a measuring device built into the coupling for the purpose of measuring the voltage across the current sensing resistor.19. The coupling according to claim 18 , wherein the measuring device is adapted for measuring the voltage at the current sensing resistor with respect to a ground potential.20. The coupling as claimed in claim 17 , wherein the measuring device measures at least one of the voltage across the current sensing resistor and the voltage at the current sensing resistor at a defined sampling rate claim 17 , and the sampling rate equals at least 100 Hz in order to be able to measure also harmonic components of ...

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Номер записи: 86
25-01-2018 дата публикации

FULL WAVE RECTIFIED ISOLATED CURRENT SENSOR

Номер: US20180024169A1
Автор: Walker Norman C.
Принадлежит:

A small wire is wound several times around a powdered metal toroidal core to sense voltage produce by single polarity current flowing through a larger wire passing through the toroid. An integrator circuit integrates the voltage in the small wire to produce an output voltage as a measure of AC and DC components of the single polarity current, such as a full wave rectified current. 1. A circuit comprising:at least one first wire wound plural times on a magnetic core;a single second wire for carrying i(t), wherein i(t) is a current to be sensed, the single second wire extending through an opening formed by the magnetic core;locations at which an output voltage v(t) representing the current to be sensed i(t) on the first wire; andan integrator connected to the locations and configured to integrate the output voltage v(t) to produce an indication of AC and DC components of the current to be sensed i(t).2. The circuit of claim 1 , wherein the second wire has a larger diameter than the first wire.3. The circuit of claim 1 , wherein the magnetic core is a powdered metal toroidal core (PMTC).4. The circuit of claim 3 , wherein a size and permeability of the PMTC are established so that the PMTC will not be saturated by a maximum expected current to be sensed i(t).5. The circuit of claim 1 , wherein the output voltage v(t) is present on at least part of the first wire when the second wire carries the current to be sensed claim 1 , the output voltage v(t) being:{'br': None, 'i': v', 't', 'N', 'AL', 'di', 't', 'dt, '()=−()()/, wherein'}N=number of turns of the first wire around the toroidal core, and AL=inductance of a single turn of first wire on the toroidal core.6. The circuit of claim 1 , wherein the integrator comprises an integrator circuit portion integrating the output voltage v(t).7. The circuit of claim 6 , wherein the integrator circuit portion comprises:{'b': '1', 'a first resistor R in series with a first one of the locations of the first wire;'}{'b': 1', '1', '1, ...

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Номер записи: 87
10-02-2022 дата публикации

NON-INVASIVE VOLTAGE SENSOR FOR POLYPHASE CABLES

Номер: US20220043032A1
Автор: Camenzind Katherine, Green Daisy, Huchel Lukasz, KRAUSE Thomas, LEEB Steven B.
Принадлежит:

Systems and techniques for non-intrusive measurement of a cable with multiple conductors include plates that form capacitive couplings with the conductors within the cable. The plates can be placed outside the cable, adjacent to one of the conductors within the cable. The capacitive couplings allow AC voltages within the cable to create currents that flow between the plates. These currents are measured and used to calculate the line voltages on the conductors within the cable. 1. A system for non-intrusive line voltage monitoring of a cable with multiple conductors , the system comprising:a plurality of conductive plates, each conductive plate configured to be positioned adjacent to an electrical conductor within the polyphase cable to maximize a capacitive coupling between the electrical conductor and the respective plate and minimize a capacitive coupling other electrical conductors in the polyphase and the respective plate;the overall arrangement of conductive plates and conductors arranged to maximize capacitive coupling between each plate and its associated conductor while minimizing coupling between each plate and other conductorsa circuit configured to determine the voltage of at least one of the electrical conductors by measuring currents flowing between at least two of the conductive plates.2. The system of wherein the cable is a three-phase cable and the plurality of conductive plates comprises:a first conductive plate configured to be positioned adjacent to a first electrical line in the cable to form a first capacitive coupling between the first capacitive plate and the first electrical line;a second conductive plate configured to be positioned adjacent to a second electrical line in the cable to form a second capacitive coupling between the second capacitive plate and the second electrical line; anda third conductive plate configured to be positioned adjacent to a third electrical line in the cable to form a third capacitive coupling between the third ...

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Номер записи: 88
10-02-2022 дата публикации

ELECTRICAL SENSOR ASSEMBLY

Номер: US20220043033A1
Автор: Bauer Alberto
Принадлежит:

A sensor assembly includes a connecting bar extending along a longitudinal axis and a tubular body extending along the longitudinal axis and at least partially surrounding the connecting bar such that the tubular body is radially spaced from the connecting bar. The tubular body includes a support member made of insulating material. The tubular body also includes a first section with an electric field sensor comprising a first layer of electrically conductive material on an inner surface of the support member to detect an electric field produced by the connecting bar. The first section also includes a first electric screen comprising a second layer of electrically conductive material on an outer surface of the support member to shield the electric field sensor from outside electrical interference. A second section disposed adjacent the first section includes a second electric screen. A dielectric material at least partially encloses the tubular body. 1. A sensor assembly comprising:a connecting bar extending along a longitudinal axis; a support member made of an insulating material, the support member including an inner surface and an outer surface opposite the inner surface,', an electric field sensor comprising a first layer of electrically conductive material disposed on the inner surface of the support member, the electric field sensor configured to detect an electric field produced by the connecting bar, and', 'a first electric screen comprising a second layer of electrically conductive material disposed on the outer surface of the support member, the first electric screen configured to shield the electric field sensor from outside electrical interference, and, 'a first section including'}, 'a second section disposed adjacent the first section along the longitudinal axis, the second section including a second electric screen; and, 'a tubular body extending along the longitudinal axis and at least partially surrounding the connecting bar such that the tubular ...

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Номер записи: 89
10-02-2022 дата публикации

CONTROL METHOD OF INSPECTION APPARATUS AND INSPECTION APPARATUS

Номер: US20220043055A1
Автор: Akiyama Naoki, NAKAYAMA Hiroyuki
Принадлежит:

A control method of an inspection apparatus including a mounting stage on which a substrate having a plurality of inspection objects is mounted, a plurality of sections being formed with respect to the mounting stage and a heater controllable to heat for each of the sections includes when inspecting a first inspection object to be inspected among the plurality of inspection objects, causing the heater to heat a section corresponding to the first inspection object and a section corresponding to a second inspection object to be inspected next. 1. A control method of an inspection apparatus includinga mounting stage on which a substrate having a plurality of inspection objects is mounted, a plurality of sections being formed with respect to the mounting stage anda heater controllable to heat for each of the sections,wherein the control method comprises:when inspecting a first inspection object to be inspected among the plurality of inspection objects, causing the heater to heat a section corresponding to the first inspection object and a section corresponding to a second inspection object to be inspected next.2. The control method of the inspection apparatus according to claim 1 , wherein the second inspection object is arranged next to the first inspection object on the substrate.3. The control method of the inspection apparatus according to claim 1 ,wherein the inspection apparatus includes a temperature sensor configured to detect a temperature of an inspection object, andwherein when heating a section corresponding to the inspection object, the heater is controlled so that the temperature of the inspection object becomes a target temperature based on the temperature of the inspection object detected by the temperature sensor.4. The control method of the inspection apparatus according to claim 3 , further comprising:upon an elapse of a threshold time after the temperature of the inspection object has stabilized at the target temperature, determining that ...

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Номер записи: 90
29-01-2015 дата публикации

METHOD FOR CALIBRATING A CURRENT TRANSDUCER OF THE ROGOWSKI TYPE

Номер: US20150028850A1
Автор: Deck Bernhard, DISSELNKÖTTER Rolf, PASCAL Joris, Zurfluh Franz
Принадлежит: ABB TECHNOLOGY AG

An exemplary method for calibrating a current transducer of the Rogowski type including a Rogowski coil sensor and an electronic device is performed by determining and correcting the sensitivity of the current transducer of the Rogowski type through the measurement of the self-inductance Lof the coil using the electronic device. 1. A method for calibrating a current transducer of a Rogowski type using an arrangement including a Rogowski coil sensor and an electronic device , the method comprising:{'sub': 'RCCT', 'determining and correcting a sensitivity of the current transducer of the Rogowski type by measuring a self-inductance Lof a coil using the electronic device.'}2. The method according to claim 1 , wherein the self-inductance is measured with a test current or a test voltage superimposed to a coil winding.3. The method according to claim 2 , wherein an output voltage generated by a primary current to be measured with the coil sensor is measured simultaneously with the self- inductance of the coil of the current transducer of the Rogowski type.4. The method according to claim 3 , wherein the self-inductance measurement is used to diagnose and calibrate the current transducer of the Rogowski type.5. The method according to claim 3 , wherein the self-inductance is measured through a response of the coil of the current transducer of the Rogowski type to a step voltage source which is connected in series with a resistor.6. The method according to claim 3 , wherein the self-inductance is measured by measuring a frequency response of a serial circuit of the coil of the current transducer of the Rogowski type and a resistor by exciting the current transducer with AC signals of varying frequency.7. The method according to claim 1 , wherein coil design parameters of the coil of the current transducer of the Rogowski type are automatically detected by the electronic device.8. The method according to claim 2 , wherein coil design parameters of the coil of the current ...

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Номер записи: 91
29-01-2015 дата публикации

ARRANGEMENT FOR MEASURING A CURRENT WITH A CURRENT TRANSDUCER OF THE ROGOWSKI TYPE

Номер: US20150028852A1
Автор: DISSELNKÖTTER Rolf, KAMMERER Jean-Baptiste, Maret Yannick, PASCAL Joris
Принадлежит: ABB TECHNOLOGY AG

An arrangement for measuring a current with a Rogowski type current transducer and transducer electronics. The current transducer has a primary conductor winding for carrying the rated current to be measured, and a secondary conductor winding. The secondary conductor winding adapted to induce a voltage signal V′ between a pair of second terminals. The current transducer having a third conductor winding adapted to receive a calibration current signal. The voltage signal V′ contains a coil sensitivity S and is a superposition of a rated current voltage signal and an additional calibration signal. The transducer electronics being adapted to amplify both the current voltage signal and the calibration signal in the same amplifier and divide the amplified current voltage signal by that part of the amplified calibration signal that contains the coil sensitivity and the gain. 1. An arrangement for measuring a current , comprising:a Rogowski type current transducer; andtransducer electronics, a primary conductor winding having a first number of loops for carrying the rated current to be measured;', 'a secondary conductor winding of a helical shape, the secondary conductor having a pair of second terminals and a second number of loops, said secondary conductor winding encircling the primary conductor in a toroidal manner;', 'a third conductor winding having a pair of third terminals with a third number of loops, wherein the third conductor winding is adapted to receive a calibration current signal,', {'sub': S', 'S, 'wherein the secondary conductor winding is adapted to induce a voltage signal V′ between the pair of second terminals, said voltage signal V′ including a coil sensitivity S and being a superposition of a rated current voltage signal and an additional calibration signal, the rated current voltage being generated in response to a derivative of the rated current, and the additional calibration signal being generated in response to the derivative of the calibration ...

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Номер записи: 92
29-01-2015 дата публикации

Arrangement for measuring a current with a current transducer of the rogowski type

Номер: US20150028853A1
Автор: Franz Zurfluh, Joris PASCAL
Принадлежит: ABB TECHNOLOGY AG

An arrangement for measuring a current with a Rogowski type current transducer and transducer electronics. The current transducer has a primary conductor winding for carrying the rated current to be measured, and a secondary conductor winding. The secondary conductor winding adapted to induce a voltage signal V S ′ between a pair of second terminals. The current transducer having a third conductor winding adapted to receive a calibration current signal. The voltage signal V S ′ contains a coil sensitivity S and is a superposition of a rated current voltage signal and an additional calibration signal. The transducer electronics being adapted to amplify both the current voltage signal and the calibration signal in the same amplifier and divide the amplified current voltage signal by that part of the amplified calibration signal that contains the coil sensitivity and the gain.

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Номер записи: 93
29-01-2015 дата публикации

Surface potential sensor and copying machine

Номер: US20150028881A1
Автор: Soichi Matsushita
Принадлежит: Omron Corp

This surface potential sensor is provided with an electret electrode ( 28 ), which is configured of a metal film ( 26 ) and an electret film ( 27 ), said electret electrode being provided on an upper surface of a diaphragm ( 25 ) of a semiconductor substrate. Four piezoresistors ( 29 a, 29 b, 29 c, 29 d ) are formed on the diaphragm ( 25 ), and a distortion quantity detecting unit ( 32 ) is configured by forming a bridge circuit using the piezoresistors. Since an electrostatic force that operates between an object and the electret electrode ( 28 ) changes corresponding to potential of the object, and the electret electrode ( 28 ) warps corresponding to the change, the potential of the object can be detected by measuring a distortion quantity of the electret electrode ( 28 ) by means of the distortion quantity detecting unit ( 32 ). Consequently, not only the potential of the object but also a polarity thereof can be detected with reduced size and high sensitivity.

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Номер записи: 94
29-01-2015 дата публикации

BOARD FOR PROBE CARD, METHOD OF MANUFACTURING THE SAME, AND PROBE CARD

Номер: US20150028912A1
Автор: CHO Beom Joon, CHOI Jung Goo, CHOO Ho Sung, NA Ji Sung, Oh Kwang Jae, Park Yun Hwi, Shin Ji Hwan
Принадлежит:

A board for a probe card includes a ceramic board including a first insulating layer, and second insulating layers disposed on one surface of the first insulating layer and including cavities for receiving electronic components, conductive patterns disposed on the first and second insulating layers, conductive vias electrically connecting the conductive patterns, and a capacitor disposed in the cavities. The cavities have a depth greater than a thickness of the capacitor to secure a space in a lower portion of the cavity after receiving the capacitor. 1. A board for a probe card , comprising:a ceramic board including a first insulating layer, and second insulating layers disposed on a first surface of the first insulating layer, the second insulating layers including cavities for receiving electronic components;conductive patterns disposed on the first and second insulating layers;conductive vias electrically connecting the conductive patterns; anda capacitor disposed in the cavities,wherein the cavities have a depth greater than a thickness of the capacitor to secure a space in a lower portion of the cavities after receiving the capacitor.2. The board of claim 1 , wherein the conductive pattern includes a pattern disposed on a second surface of the first insulating layer opposing to the first surface of the first insulating layer claim 1 , the pattern being connected to a test pin.3. The board of claim 1 , wherein an upper portion of the cavities is in contact with the first insulating layer claim 1 , and the capacitor is disposed in the upper portion of the cavities.4. The board of claim 1 , wherein a thickness of the first insulating layer is in a range of 0.05 mm to 1.2 mm.5. The board of claim 1 , wherein a thickness of the ceramic board is 2.0 mm or greater.6. The board of claim 1 , wherein the capacitor contains a high degree of permittivity ceramic capable of being sintered at 1000 to 1400° C.7. The board of claim 1 , wherein the ceramic board contains ...

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Номер записи: 95
23-01-2020 дата публикации

ELECTRONIC MEASURING DEVICE AND METHOD OF USE

Номер: US20200025798A1
Автор: MOUTZOURIS Paul
Принадлежит:

The invention relates to a measuring device such as a multimeter, comprising a retractable assembly, and including (i) a cable comprising a first end portion having a first probe and a second end portion having a second probe; (ii) a reel comprising a rotatable hub adapted to wind up and unwind said cable; and (iii) a circuit in connection with said cable, the circuit being adapted to wirelessly communicate a signal measured by the first probe or the second probe to a remote location; wherein the circuit is rotatable in conjunction with said rotatable hub. 1. A measuring device , comprising a retractable assembly , the device including: a first end portion having a first probe; and', 'a second end portion having a second probe;, '(i) a cable comprising(ii) a reel comprising a rotatable hub adapted to wind up and unwind said cable;(iii) a circuit in connection with said cable, said circuit being adapted to wirelessly communicate a signal measured by the first probe or the second probe to a remote location;wherein the circuit is rotatable in conjunction with said rotatable hub.2. A measuring device according to wherein the cable comprises two lengths of cable each independently in communication with the circuit.3. A measuring device according to wherein the circuit is comprised in a printed circuit board.4. A measuring device according to which further includes:a central post associated with the wheel hub and about which the reel rotates, anda light emitting diode adjacent the central post such that the post acts as a light guide.5. A measuring device according to wherein the reel comprises a rotatable cylindrical hub with at least one circular flange claim 1 , and a retainer including:a releasable ratchet assembly to retain the reel in a releasable fixed position, said releasable ratchet assembly having:a pawl positioned for engagement with the reel to prevent the biasing means from urging the reel to wind up the elongated cable;elastic means to bias said pawl toward ...

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Номер записи: 96
25-01-2018 дата публикации

CURRENT SENSOR WITH COOLING

Номер: US20180027692A1
Автор: Schmit Christopher J.
Принадлежит:

An electrical assembly includes a heat conducting housing. A conductor is supported by the housing and conducts electrical current. An electrical insulator member surrounds the conductor. A core surrounds the insulator member and the conductor so that current flowing through the conductor induces a magnetic field in the core. A transducer is coupled to the core for generating a signal representing current in the conductor. A thermal interface member engages the core and engages the housing. The interface member conducts or can conduct heat to the housing. 1. An electrical assembly comprising:a conductor for conducting electrical current;an insulator member surrounding the conductor;a core surrounding the insulator member and the conductor so that current flowing through the conductor induces a magnetic field in the core;a transducer coupled to the core for generating a signal representing current in the conductor;a thermal interface member engaging the core; anda housing supporting the insulator member, the housing engaging the thermal interface member so that the interface member conducts heat to the housing.2. The electrical assembly of claim 1 , wherein:the core comprises an annular ring; andthe thermal interface member comprises a curved wall and a curved lip joined to an end of the curved wall.3. The electrical assembly of claim 2 , wherein:the curved wall has a concave surface which engages an outer surface of the core; andthe lip engages an end of the core.4. The electrical assembly of claim 3 , wherein:the curved wall has a convex surface which engages a portion of the housing; andthe lip engages the housing.5. The electrical assembly of claim 1 , wherein:the core comprises an annular ring; andthe thermal interface member comprises a curved wall.6. The electrical assembly of claim 5 , wherein:the curved wall has a concave surface which engages an outer surface of the core.7. The electrical assembly of claim 5 , wherein:the curved wall has a convex surface ...

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Номер записи: 97
23-01-2020 дата публикации

SYSTEM AND METHOD FOR DETECTING ARC FAULTS

Номер: US20200028349A1
Автор: Elliott David Alan
Принадлежит:

A system and method for detecting arc faults includes receiving, by a controller module, a first sensed power characteristic from a first power characteristic sensor at an output of an upstream electrical component, receiving, by the controller module, a second sensed power characteristic from the second power characteristic sensor at an input of a downstream electrical component, the input and output connected by a conductor, determining, by the controller module, a difference between the first and second sensed power characteristics, and providing indication of an arc fault at the conductor. 1. A power distribution system comprising:an upstream electrical component having an output and a first power characteristic sensor configured to sense a power characteristic at the output;a downstream electrical component having an input and a second power characteristic sensor configured to sense a power characteristic at the input;a conductor conductively connecting the output with the input; anda controller module having an arc fault threshold stored in memory and communicatively connected with the first and second power characteristic sensors and configured to determine if an arc fault is present by receiving a first sensed power characteristic from the first power characteristic sensor and a second sensed power characteristic from the second power characteristic sensor, determining a difference between the first and second sensed power characteristics, determining a calibration factor and modifying the arc fault threshold based on the calibration factor, comparing the difference with the modified arc fault threshold, and upon satisfaction of the comparison, providing indication of an arc fault at the conductor;wherein the calibration factor includes at least one of a temperature factor, a current factor, or a timing factor.2. The power distribution system of wherein the calibration factor includes the timing factor and at least one of the temperature factor claim 1 , or ...

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Номер записи: 98
23-01-2020 дата публикации

Flexible sensor technology

Номер: US20200029427A1
Автор: Phani Teja V. Kuruganti, Pooran C. Joshi, Stephen M. Killough
Принадлежит: UT Battelle LLC

A system and method (referred to as a method) to fabricate sensors and electronic circuits. The method prints a first thin-film having an electronic conductivity of about less than a millionth of a Siemens per meter and a permalloy directly onto the first thin-film. The permalloy has a magnetic permeability greater than a predetermined level and has a thickness within a range of about 1 to 20 microns. The system prints a second thin-film directly onto the permalloy to encapsulate the permalloy onto the first thin-film and prints conductive traces directly onto the surfaces of the first-thin-film, the permalloy, and the second thin-film. In some applications, a sensor is packaged in an additively manufactured three-dimensional cylindrical shape that can be mounted on or is a unitary part of a current carrying conductor without incising, sharing, or severing (e.g., cutting) the current carrying conductor or its insulation.

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Номер записи: 99
02-02-2017 дата публикации

VOLTAGE SENSOR

Номер: US20170030946A1
Автор: Busemann Friedrich A., Eggert Sebastian, Ghosh Dipankar, Gravermann Mark, Kang Myungchan, Lohmeier Gerhard, Petry Michael, Reeken Rainer, Roehling Werner, Sabo Andreea, Schubert Bernd, Sebesta Christopher D., Stalder Michael H., Weichold Jens, Weinmann Christian
Принадлежит:

Voltage sensor () for a high- or medium-voltage power-carrying conductor for a power network, such as an inner conductor of a power cable or a cable connector or a bus bar. The voltage sensor has a tubular shape and an axial passageway (), which can receive the conductor. The voltage sensing device comprises a) a radially-inner electrode (), operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power-carrying conductor, b) a radially-outer electrode (), operable as a second sensing electrode of the sensing capacitor, and c) a solid carrier element (), at least a first portion of which is arranged between the inner electrode and the outer electrode, the first portion being operable as a dielectric of the sensing capacitor. The sensor can be accommodated in a cable accessory. The carrier element may comprise ceramic material to increase accuracy. 1. Voltage sensing device for a high-voltage or medium-voltage power-carrying conductor for a power network , such as an inner conductor of a power cable or a cable connector or a bus bar , the voltage sensing device having a tubular shape and an axial passageway defining axial and radial directions , which passageway can receive the power-carrying conductor ,the voltage sensing device comprisinga) a radially-inner electrode, operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power-carrying conductor,b) a radially-outer electrode, operable as a second sensing electrode of the sensing capacitor,c) a solid carrier element, at least a first portion of which is arranged between the inner electrode and the outer electrode, the first portion being operable as a dielectric of the sensing capacitor.2. Voltage sensing device according to claim 1 , wherein the passageway defines a central axis claim 1 , and wherein the greatest radial distance of the outer electrode from the central axis at any axial location is less than 50 millimeters.3. Voltage sensing ...

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Номер записи: 100