АДСОРБЕНТ МЕТИЛЙОДИДА, ЕГО ПРИМЕНЕНИЕ И СПОСОБ АДСОРБЦИИ МЕТИЛЙОДИДА

... 1. Адсорбент метилйодида, который содержит цеолит, содержащий по меньшей мере один металл, адсорбирующий йодид, или его соединение, причем цеолит представляет собой гидрофобный цеолит, выбранный из группы, состоящей из AFI, AEL, ВЕА, СНА, EUO, FER, KFI, LTL, MAZ, MOR, MTW, OFF и TON.2. Адсорбент по п. 1,в котором цеолит представляет собой по существу гидрофобный цеолит, и/илив котором металл, адсорбирующий йодид, представляет собой также металл, адсорбирующий йод.3. Адсорбент по п. 1,в котором цеолит является микропористым, и/илив котором металл, адсорбирующий йодид, выбран из серебра, иттрия, церия, магния, натрия, олова и свинца.4. Адсорбент по п. 1,в котором цеолит или адсорбент имеет долю микропор более 70%, предпочтительно более 80%, по отношению к общему объему пор цеолита или адсорбента, и/илив котором металл, адсорбирующий йодид, расположен в порах цеолита.5. Адсорбент по п. 1,в котором цеолит представляет собой алюмосиликат, и/илив котором цеолит имеет соотношение SiO/AlO>10, предпочтительно ...

Vorrichtung und Verfahren zur Bestimmung des Kontaktwinkels eines flüssigen oder mit Flüssigkeit gefüllten Körpers

Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zur Bestimmung des Kontaktwinkels eines flüssigen oder mit Flüssigkeit gefüllten Körpers. Dieser besteht aus einem Träger (1) und einer damit verbundenen, in einem Winkelbereich von mehr als 0° bis maximal 90° neigbaren Ebene (8) mit einer darin ausgebildeten Abrollbahn (9) für den flüssigen oder mit Flüssigkeit gefüllten Körper. An der Ebene (8) sind mehrere Sensoren (11, 12) zur Erfassung der Rolldauer des Körpers entlang der Rollstrecke angeordnet. Erfindungsgemäß ist vorgesehen, dass die Einstellung des Neigungswinkels der Ebene (8) über ein Winkelmessgerät (10) erfolgt, wodurch ein Abrollwinkel erfassbar ist, bei dem der Körper in Bewegung gerät. Aus der Rolldauer, der Rollstrecke und dem Abrollwinkel wird der Kontaktwinkel des Körpers ermittelt.

Automatic measurement of surface tension and wetting angle - using optical measurement of drop or bubble illuminated by parallel light

Drops or air bubbles of the fluid are illuminated by a parallel beam of light. The intensity of the light reflected back from a background mirror is measured at different positions and the results are processed electronically to compute the surface tension and wetting angle. The computation uses a binary intensity signal generated by passing the direct measurements through a comparator. The level of the comparator threshold is adapted for each set of measurements. Full information is obtained by using both suspended and resting drops or bubbles. The technique is superior to conventional capillary action in that it readily permits automation.

Vorrichtung zum Bestimmen des Randwinkels eines auf einer Unterlage liegenden Tropfens

Vorrichtung zum Bestimmen des Randwinkels (γ) eines auf einer Unterlage (1) aufgebrachten Topfens (2) mit einer Dosiereinrichtung (3) zum definierten Aufbringen des Tropfens (2) und einer Kamera (4) mit zugeordneter Auswerteeinrichtung und Anzeigeeinheit (5), dadurch gekennzeichnet, dass die Vorrichtung als Handgerät mit einem die Dosiereinrichtung (3), eine Beleuchtungseinrichtung (6), die Kamera (4), die Auswerteeinrichtung und die Anzeigeeinheit (5) haltenden, auf der Unterlage (1) aufsetzbaren Tragegerüst oder Gehäuse ausgebildet ist.

VERFAHREN UND MESSANORDNUNG ZUR EXAKTEN BESTIMMUNG VON GRENZFLAECHENSPANNUNGEN

PROCEDURE AND MEANS FOR THE INFILTRATION OF TOOTH FUSION LESIONS

PROCEDURE AND DEVICE FOR THE DETERMINATION OF THE WETTABILITY OF A MOVED SURFACE AS WELL AS THEIR USE

METHYL IODIDE ADSORBER, USE THEREOF AND METHOD FOR THE ADSORPTION OF METHYL IODIDE

A methyl iodide adsorber is provided, comprising a zeolite containing at least one iodide-adsorbing metal or a compound thereof, wherein the zeolite is a hydrophobic zeolite. A use of the adsorber and a method for adsorption of methyl iodide are also specified.

3D stereoscopic imaging contact angle measuring instrument

Sessile drop fluid interface tension gauge - employs illuminated glass cell with diametrically opposed orifices

Method and device for determining the angle of contact at the interface between a liquid and a horizontal plane solid substrate

L'invention concerne un procédé et un dispositif pour déterminer l'angle de contact entre un liquide et un substrat solide plan horizontal à partir de la mesure ou de la détermination de la hauteur d'une goutte à surface libre supérieure plane. Le dispositif est caractérisé en ce qu'il comprend des moyens (1, 2, 5) de mesure ou de calcul de la hauteur d'une goutte (4) de type mesa à surface libre supérieure plane, et des moyens de calcul de l'angle de contact à partir de la hauteur ainsi déterminée.

TEST FOR WETTING CHARACTERISTICS

A test kit consisting of probes with special surface profiles which simulates the wetting characteristics of natural surfaces is used for the testing of wetting characteristics. The test kit can be used in the fields of pharmaceuticals, animal health, cosmetics, and plant protection.

POLYELECTROLYTE FUEL CELL-USE SEPARATOR, POLYELECTROLYTE FUEL CELL, METHOD OF EVALUATING POLYELECTROLYTE FUEL CELL-USE SEPARATOR, AND PRODUCTION METHOD OF POLYELECTROLYTE FUEL CELL-USE SEPARATOR

A polyelectrolyte fuel cell-use separator having a surface excellent in condensed water discharging performance despite a low pressure loss of supply gas, a highly-reliable polyelectrolyte fuel cell capable of sufficiently controlling the occurrence of a flooding phenomenon despite a low pressure loss of supply gas, a method of evaluating a polyelectrolyte fuel cell-use separator capable of accurately evaluating a condensed water discharging performance, and a method of producing a polyelectrolyte fuel cell-use separator having a surface excellent in condensed water discharging performance despite a low pressure loss of supply gas. The polyelectrolyte fuel cell-use separator comprises conductive carbon and a binder solidifying the conductive carbon, wherein a water drop falling angle on the surface of a reaction gas flow path (30C, 40C) formed on at least one main surface is 5 deg. through 45 deg. when a water drop of 50 µL through 80 µL is dropped under conditions of an environmental ...

Liquid absorptometry method of providing product consistency

The present invention relates to a method of providing product consistency of a particulate material or the product containing the same, by maintaining at least one absorptometry value of the particulate material within a target range. The method may be used as a QA/QC method to insure product consistency.

Method and apparatus for measuring contact angles of liquid droplets on substrate surfaces

A method and apparatus for determining the contact angle of a droplet of test liquid on a substrate surface. The apparatus includes a test article support plate, a pipette for depositing a droplet of test liquid onto a substrate surface of the test article, and a lamp for projecting an image of the deposited droplet onto a projection screen with a base line of the image positioned on a horizontal axis line of the screen. The screen further has a protractor scale calibrated to read twice the normal angular value, and a rotatable reference line which upon positioning through a contact point of the droplet with the substrate surface and an apex point of the droplet farthest removed from the substrate surface directly indicates the value of the contact angle of the on the protractor scale.

MEASUREMENT SYSTEM

A measurement system includes a detector configured to detect a contact state of a bubble with respect to a wall, the bubble being included in a fluid that is in contact with a wall, and a controller configured to acquire the state of at least one of the wall, the fluid, and the bubble based on the contact state of the bubble with respect to the wall.

АДСОРБЕНТ МЕТИЛЙОДИДА, ЕГО ПРИМЕНЕНИЕ И СПОСОБ АДСОРБЦИИ МЕТИЛЙОДИДА

Изобретение относится к цеолитным адсорбентам. Адсорбент метилйодида включает цеолит, содержащий по меньшей мере один металл, адсорбирующий йодид, или его соединение. Заявленный цеолит представляет собой гидрофобный цеолит типа ВЕА, имеющий соотношение SiO 2 /Al 2 O 3 >30. Предложено применение адсорбента и способ адсорбции метилйодида, в том числе радиоактивного. Заявленный адсорбент характеризуется высокими адсорбционной способностью и стабильностью. 3 н. и 11 з.п. ф-лы, 2 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 599 660 C2 (51) МПК B01J 20/18 (2006.01) G21F 9/12 (2006.01) B01D 53/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014140439/05, 02.04.2013 (24) Дата начала отсчета срока действия патента: 02.04.2013 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.05.2016 Бюл. № 15 (73) Патентообладатель(и): КЛАРИАНТ ИНТЕРНЭШНЛ ЛТД. (CH), АРЕВА ГМБХ (DE) R U 02.04.2012 DE 102012006542.6 (72) Автор(ы): ДОНАБАУЭР Катарина (DE), ТИССЛЕР Арно (DE), ЭНДЛЕР Мика (DE), БЮТТНЕР Олаф (DE) (56) Список документов, цитированных в отчете о поиске: US 6380428 B1 30.04.2002. US 6506935 B1 14.01.2003. US 5075084 A 24.12.1991. EP 0175435 A1 26.03.1986. J. Stelzer et. All, "Hydrohobic properties of all-silica zeolite beta", Microporous and Mesoporous Materials, 22, 1998, 1-8. R.T. Jubin, "A Literature Survey jf Methods Remove Iodin from Off-Gas Streams Using Solide Sorbents", date issued 10.04.1979, стр. 2841. RU 2091365 C1 27.09.1987. 2 5 9 9 6 6 0 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 05.11.2014 C 2 C 2 (45) Опубликовано: 10.10.2016 Бюл. № 28 (86) Заявка PCT: R U 2 5 9 9 6 6 0 EP 2013/056941 (02.04.2013) (87) Публикация заявки PCT: WO 2013/150029 (10.10.2013) Адрес для переписки: 190000, Санкт-Петербург, ВОХ-1125, ПАТЕНТИКА (54) АДСОРБЕНТ МЕТИЛЙОДИДА, ЕГО ПРИМЕНЕНИЕ И СПОСОБ АДСОРБЦИИ МЕТИЛЙОДИДА (57) Реферат: Изобретение относится к цеолитным ...

ИНФИЛЬТРУЕМОЕ ВЕЩЕСТВО ДЛЯ ИСПОЛЬЗОВАНИЯ В СТОМАТОЛОГИИ

... 1. Инфильтруемое вещество для использования в стоматологии, отличающееся тем, что оно содержит светоотверждающуюся смолу низкой вязкости и инфильтруемое вещество имеет коэффициент проникновения >50 см/с. ! 2. Инфильтруемое вещество по пункту 1, где инфильтруемое вещество содержит по меньшей мере одну смолу низкой вязкости, выбираемую из группы, содержащей: bis-GMA, 2,2-бис[4-(2-гидрокси-3-метакрилоксипропокси)фенил]пропан; bis-PMA, пропоксилированный бисфенол-А-диметакрилат; bis-EMA, этоксилированный бисфенол-А-диметакрилат; bis-MA, бисфенол-А-диметакрилат; UDMA, 1,6-bis(метакрилокси-2-этоксикарбониламино)-2,4,4-триметилгексан; UPGMA, уретан бисфенол-А-диметакрилат; TEGDMA, триэтиленгликольдиметакрилат; TEGMMA триэтиленгликольмонометакрилат; TEEGDMA, тетраэтиленгликольдиметакрилат; DEGDMA, диэтиленгликольдиметакрилат; EGDMA, этиленгликольдиметакрилат; DDDMA, 1,10-декандиолдиметакрилат; HDDMA, 1,6-гександиолдиметакрилат; PDDMA, 1,5-пентандиолдиметакрилат; BDDMA, 1,4-бутандиолдиметакрилат ...

Verfahren zur Kontrolle und/oder zur Vorhersage von rheologischen Eigenschaften

Die Erfindung betrifft Verfahren zur Vorhersage der rheologischen Eigenschaften einer Zusammensetzung, die einen Füllstoff in einer Matrix umfasst. Die vorliegende Erfindung betrifft ferner die Bestimmung der Differenz zwischen der Kohäsionsarbeit und der Adhäsionsarbeit für einen Füllstoff und eine Matrix, um die rheologischen Eigenschaften des Systems, wie z. B. die Fließgrenze bzw. Streckgenze quantitativ vorherzusagen. Die Möglichkeit, diese Eigenschaften vorherzusagen, bietet zahlreiche Vorteile. Die vorliegende Erfindung bezieht sich ferner auf eine rheologische Master- bzw. Modellkurve und ein Verfahren zur Aufstellung der Kurve, die es ermöglicht, eine rheologische Eigenschaft einer Zusammensetzung, die einen Füllstoff in einer Matrix umfasst, vorherzusagen auf der Basis des jeweils verwendeten Polymers und des jeweils verwendeten Füllstoffs. Beschrieben wird außerdem ein Verfahren zum Auswählen eines Füllstoffs, um eine erwünschte rheologische Eigenschaft zu erzielen, unter Verwendung ...

Contact angle goniometer

METHODS AND APPARATUS TO DETERMINE INTEGRITY OF COMPOSITE STRUCTURES

Apparatus and methods to determine structural integrity of composites are described herein. One described example method for determining sufficiency of structural integration of a composite structure for an aircraft includes applying a fluid droplet to a surface of the composite structure determining a three-dimensional contact angle between the surface and a portion of the droplet, comparing the three-dimensional contact angle to a threshold angle, and determining whether the structural integration of the composite structure is sufficient based on the comparison.

METHODS AND DEVICES FOR DETEMINING THE CONTACT ANGLE OF A DROP OF LIQUID PLACED ON A SUBSTRATE

The invention relates to improvements to methods and devices for determining the contact angle of a drop of liquid placed on a substrate. The device comprises : a support 12 for a substrate 11 which receives a drop of liquid 9; a light source 1; optical means, formed for example by a plate with parallel faces 21 rotatable about its axis 22 and whose inclination with respect to the axis may be modified, with a reflecting prism 5a, for forming a primary beam 6a, advantageously annular, striking the interface 8 between drop and substrate; a receiving surface 13a, 13b formed by a reflection diffusing surface; a reflecting surface 17; and a camera C.

Method and device for obtaining interfacial tension of liquid system on rock surface

PROCEDE ET DISPOSITIF POUR DETERMINER L'ANGLE DE CONTACT D'UNE GOUTTE DE LIQUIDE POSEE SUR UN SUBSTRAT HORIZONTAL SOLIDE OU LIQUIDE

UN SUPPORT 56 EST PROPRE A MAINTENIR HORIZONTAL UN SUBSTRAT 10 SUR LEQUEL EST POSEE UNE GOUTTE DE LIQUIDE. UNE SOURCE DE LUMIERE 74 ASSOCIEE A UN COLLIMATEUR 78 FORME UN FAISCEAU PRIMAIRE DE LUMIERE PARALLELE, QUI EST DIRIGE 86 PERPENDICULAIREMENT AU SUBSTRAT. UNE SURFACE RECEPTRICE 126, 128 EST PLACEE DANS UNE POSITION CONNUE PAR RAPPORT AU SUBSTRAT, POUR INTERCEPTER DANS UNE GEOMETRIE CONNUE, LE FAISCEAU SECONDAIRE 124 PRODUIT PAR INTERACTION DU FAISCEAU PRIMAIRE AVEC LA GOUTTE ET LE SUBSTRAT. DE LA ZONE ECLAIREE DE CETTE SURFACE ON TIRE LA VALEUR DE L'ANGLE DE CONTACT DE LA GOUTTE AVEC LE SUBSTRAT.

PROCESS AND DEVICE TO DETERMINE the CONTACT ANGLE Of a DROP OF LIQUID POSEE ON a SOLID HORIZONTAL SUBSTRATE OR LIQUID

DEVICE OF MEASUREMENT OF the ABSORPTIVITY Of a METAL SURFACE BY a METAL PRODUCT, TYPICALLY an ALLOY OF BRAZING

Procede pour determiner les energies de surface de solides par mouillabilite et dispositif pour la mise en oeuvre de ce procede

La presente invention concerne un procede et un dispositif pour determiner les energies de surface de solides. Le dispositif comprend une camera video 14 destinee a faire une acquisition video de l'image d'une goutte 12 d'un liquide a etudier, deposee sur un support 11 dans une enceinte 10 contenant de la vapeur dudit liquide. La camera transmet des signaux a un systeme video 15 couple a un moniteur 16 et a un micro-ordinateur 17 concu pour effectuer une numerisation de l'image. Le but de cette invention est de determiner des parametres physiques statiques et dynamiques de liquides et en particulier de polymeres.

METHOD OF AND APPARATUS FOR THE DETERMINATION OF INTER

Perfectionnements aux procédés et dispositifs pour déterminer l'angle de contact d'une goutte de liquide posée sur un substrat

Le dispositif comprend : un support 12, pour un substrat 11 qui reçoit une goutte de liquide 9; une source de lumière 1; des moyens optiques, constitués par exemple par une lame à faces parallèles 21 apte à être entraînée en rotation autour de son axe 22 et dont l'inclinaison peut être modifiée par rapport à l'axe, avec un prisme de renvoi 5a, pour former un faisceau primaire 6a, avantageusement annulaire, frappant l'interface 8 entre goutte et substrat; une surface réceptrice 13a, 13b constituée par une surface diffusante en réflexion; une surface réfléchissante 17; et une caméra C ...

Surface treatment method, surface treatment device, surface treated plate, photoelectric device, electronic machine

In this invention, the contact angle of a liquid and a plate can be controlled consistently even for a large plate. It contains a process of providing a hydrophobic property to the surface of a plate 11, and a process of providing a hydrophilic property to the surface by irradiating energy light (radiation) on the surface of the plate 11, which is provided with the hydrophobic property are provided. Variations in the accumulated illumination intensity of radiation on the surface of the plate are controlled to 20% or less.

Method and device for determining the contact angle from the drop curvature radius by measuring the optical distance

Es wird ein Verfahren zur Bestimmung des Kontaktwinkels (ϕ) zwischen einer Probenoberfläche (3), einer gasförmigen Umgebung und einem auf der Probenoberfläche (3) angeordneten Tropfen (5) angegeben, wobei der Tropfen (5) eine gekrümmte Oberfläche (7), eine Symmetrieachse (ASy-ASy) und ein definiertes Volumen (VT) hat. Bei dem Verfahren wird ein Objekt aufgrund der Reflexionseigenschaft der Oberfläche (7) des Tropfens (5) an der Tropfenoberfläche abgebildet, wobei die Lage des Objekts zu der optischen Achse (A-A) eines optischen Messsystems und die Lage des Objekts zu der Probenoberfläche (3) bekannt ist und wobei die Symmetrieachse (ASy-ASy) des Tropfens (5) in oder nahe bei der optischen Achse (A-A) angeordnet ist. Die Distanz zwischen der Abbildung und der optischen Achse (A-A) des Tropfens (5) wird gemessen. Der Krümmungsradius des Tropfens (5) wird mittels der gemessenen Distanz und der Kontaktwinkel wird mittels des Krümmungsradius bestimmt.

КОЭФФИЦИЕНТ ДИФФУЗИИ ПЛОЩАДИ КОНТАКТА ДЛЯ КОЛИЧЕСТВЕННОГО ОПРЕДЕЛЕНИЯ СОДЕРЖАНИЯ ЖИРОВ В ЖИДКОСТИ

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ДИНАМИЧЕСКОГО УГЛА СМАЧИВАНИЯ В КАНАЛЕ

Изобретение относится к области измерительной техники, микрофлюидике и может найти применение в различных отраслях промышленности. Устройство для измерения динамического угла смачивания в канале, содержащее персональный компьютер 1, блок управления 2, видеокамеру 3, насос 5, обеспечивающий движение жидкости, герметичный резервуар 6, микрофлюидный чип 7, сливной резервуар 8 для накопления объема жидкости, пропускаемой через канал, зеркало 9, установленное на пьезоэлектрических актюаторах 4, канал 10. Зеркало 9 с тремя пьезоэлектрическими актюаторами 4 выполнено как единый модуль, причем зеркало 9 перемещается пьезоэлектрическими актюаторами 4 посредством управляющего сигнала, поступающего с компьютера 1 на внешний блок управления 2 актюатором 4, на основании заданных программой алгоритмов для удержания изображения движущейся границы раздела фаз в поле зрения неподвижной камеры 3. Технический результат - повышение точности определения динамического угла контакта в канале при напоре жидкости ...

Kit zur Infiltration von Zahnschmelz

Kit zur Durchführung einer Infiltration von Zahnschmelz, mit den Bestandteilen: a) einem Konditionierer, der Salzsäure enthält; b) einem Infiltranten. Kit for infiltration of tooth enamel, with the components: a) a conditioner containing hydrochloric acid; b) an infiltrant.

Prüfverfahren und Prüfvorrichtung

Die vorliegende Erfindung betrifft ein Prüfverfahren zum Prüfen einer Oberflächengüte und ein Prüfsystem zum Durchführen eines solchen Prüfverfahrens.

Fluid sensing device and method for use in particular in milking machines

Method for measuring fat content in liquid by using contact area diffusion factor

The present invention relates to a method for measuring fat content in a liquid by using a contact area diffusion factor. More specifically, the present invention relates to a method for measuring fat content in a liquid from the CADF value of a droplet.

CONTACT AREA DIFFUSION FACTOR FOR QUANTIFYING FAT CONTENTS OF LIQUID

The present invention relates to a method for measuring fat content in a liquid by using a contact area diffusion factor. More specifically, the present invention relates to a method for measuring fat content in a liquid from the CADF value of a droplet.

METHOD AND MEANS FOR INFILTRATING ENAMEL LESIONS

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Multifunctional contact angle in-situ testing pool for determining surface wettability and application thereof

METHOD AND DEVICE FOR DETERMINING THE CONTACT ANGLE AT THE INTERFACE BETWEEN A LIQUID AND A SOLID SUBSTRATE HORIZONTAL PLANE.

Object`s e.g. laminated strip, metallic surface wettability measuring device, has cylindrical tube made of transparent material so that meniscus of metallic product formed on object`s surface is observed visually or using camera

Le dispositif de mesure (1) de la mouillabilité d'une surface métallique (20) d'un objet (2) par un produit métallique (3) comprend : a) une enceinte (4) ledit objet (2) et une portion (30) dudit produit métallique (3), b) un moyen de chauffage (11) dudit objet (2) c) un moyen pour obtenir dans ladite enceinte (4) une atmosphère gazeuse de composition prédéterminée, d) un moyen de dépôt pour déposer sur ladite surface métallique (20) dudit objet (2), une quantité, typiquement constante et prédéterminée, de ladite portion (30 e) un moyen pour évaluer, typiquement par un examen visuel direct ou par calcul de la surface étalée mesurée au moyen d'un dispositif de reconnaissance d'image, la forme dudit ménisque (7), et typiquement l'angle θ dudit ménisque, et ainsi déterminer ainsi ladite mouillabilité de ladite surface métallique (20) par ledit produit métallique (3) à l'état liquide, ladite surface étant considérée comme mouillable si ledit angle θ est typiquement inférieur à 90° et non mouillable ...

DEVICE FOR MEASURING SURFACE TENSTION AND METHOD FOR MEASURING SURFACE TENSION

본 발명은 표면장력 측정 장치 및 측정 방법에 관한 것으로서, 보다 구체적으로는 종래의 광학적 방법을 통해 표면장력을 측정하는 것에 비해 훨씬 간단하고 정확도가 향상된 전기적 방법을 통한 표면장력 측정 장치 및 측정 방법에 관한 것이다. The present invention relates to a surface tension measuring apparatus and a measuring method, and more particularly, to a surface tension measuring apparatus and a measuring method through an electrical method which is much simpler and has improved accuracy compared to measuring surface tension through a conventional optical method. will be.

METHODS OF SELECTING AND DEVELOPING A PARTICULATE MATERIAL

The present invention relates to a method of selecting and/or developing particulate material for a composition comprising the particulate material and a matrix by using at least one homogeneous interaction parameter alone or in combination with at least one heterogeneous interaction parameter. These parameters may comprise at least one interfacial potential property value, at least one value derived from an interfacial potential property value, at least one component of an interfacial potential property value, or combinations thereof for a particulate material and for the matrix. Process and performance maps, as well as methods for mapping, are also disclosed. © KIPO & WIPO 2007 ...

Drop measuring apparatus, and a method of evaluating materials wettability

The apparatus comprises means usable in the novel method for evaluating materials wettability, as well as measuring the contact angle of a liquid drop, the same comprising a structure for measuring the height of a drop deposited on a material, in that the height of the drop is indicative of both the contact angle of the drop and the wettability of the material upon which the drop is deposited. Thus, the apparatus comprises a platform on which to receive a drop (directly, or via an interposed substrate or like subject "material") - of predetermined composition and volume - and means coupled to the platform for gauging the height of the drop, from its chord interfaced with the platform (or substrate or "material"), to its topmost surface. The novel methods comprehend the measuring of drops on materials, the wettability of which materials needs to be determined, and comparing the derived measurements against "standard" drop measurements of same materials which have acceptable and unacceptable ...

Contact angle measurement apparatus

A contact angle measurement apparatus includes a liquid reservoir arrangement, a drop dosing device in fluid communication with the liquid reservoir arrangement and adapted for applying a liquid drop onto a sample surface, an illuminating device for illuminating each drop applied by the drop dosing device and disposed on the surface from a first side, and an image recording device for recording an image of each applied drop disposed on the surface. A liquid pressurizing system is adapted to pressurize liquid from the liquid reservoir arrangement, and a controller connected to the valve of each drop dosing device and to the liquid pressurizing system, which controls the operation of the liquid pressurizing system and, for each drop dosing device, opening and closing of the respective valve to apply a drop of the respective liquid from the respective liquid line to the surface in a jet of pressurized liquid.

Solid body surface evaluation method, magnetic disk evaluation method, magnetic disk, and manufacturing method thereof

In a method of evaluating surface tension of a solid body surface, selection is made of at least three liquid samples having different surface tensions, and contact angles between the respective liquid samples and the solid body surface are measured. Thereby, a correlation between cosines (Y) of the contact angles and surface tensions (X) of the liquid samples is derived as a logarithmic function. Surface tension of the solid body surface is evaluated by the use of a value of X that is calculated by substituting 1 for Y in the correlation. When evaluated by the foregoing evaluation method, a magnetic disk has a surface where the value of X, when 1 is substituted for Y, is greater than 0 and no greater than 17 mN/m.

Reliable determination of contact angle of sessile drops

Various examples are provided related to determination of contact angle of sessile drops. In one example, a method includes determining a volume of a sessile drop of fluid disposed on a test surface; determining a height of the sessile drop of fluid; and determining a contact angle of the sessile drop of fluid based upon the volume and the height of the sessile drop. In another example, a system includes a volume sensing, a height sensing, and computing that can determine a volume and height of a sessile drop using volume and height data from the sensing, and determine a contact angle of the sessile drop with the volume and the height. The contact angle and surface tension can be determined with at least three of volume, a height, a footprint radius, a radius of maximum horizontal extent, and/or an apex radius of curvature of the drop.

METHOD AND DEVICE FOR ANALYSING THE INTERACTION BETWEEN A SURFACE OF A SAMPLE AND A LIQUID

Оптический тензиометр для измерения контактного угла смачивания на препарате горной породы методом прикрепленного пузырька и способ его работы

Изобретение относится к области исследования физико-химических свойств поверхности и предназначено для определения контактного угла смачивания поверхности раздела газовой и твердой фаз образца горной породы, представленного в виде порошка. Заявлен оптический тензиометр для измерения контактного угла смачивания на порошковых препаратах горной породы методом прикрепленного пузырька, выполненный в виде термостатированной оптически прозрачной ванны, оснащенной воздуховодом-дозатором, состоящим из поршня в гильзе и обратной иглы, оснащенный держателем и оптически цифровым блоком. Оптический тензиометр дополнительно содержит зеркало, а также систему магнитных приводов с возможностью подвода обратной иглы воздуховода-дозатора к поверхности препарата горной породы. Ванна оснащена помпой - регулятором уровня воды, а держатель представляет собой поплавок-держатель препарата горной породы, содержащий платформу из водонепроницаемого материала постоянной толщины с равномерно распределенной массой и ...

Method and apparatus for measuring surface configuration

A method of measuring the surface configuration of a liquid surface, e.g. to measure surface tension. Liquid samples are confined in wells 1, e.g. of a multi-well microtitre plate 3, and a predefined pattern 5, e.g. a rectangular grid, parallel lines or concentric circles, placed below the wells 1 is imaged through the wells 1. The image is distorted depending on the curvature of the samples surface, which is in turn dependent on the surface tension. The distortion, e.g. de-magnification, can be compared with stored examples, or the curvature can be calculated directly from the distortion.

Inorganic surface analysis

A method and apparatus for estimating the degree of cleanliness of an inorganic surface by measuring the surface wettability, particularly of an inorganic surface 103 used in the manufacturing of electronic components. The wettability of the inorganic surface is measured by depositing a droplet of test liquid 101 on the inorganic surface and measuring the speed at which the droplet evaporates through weighing. This speed is proportional to the droplet liquid surface area, which depends on the inorganic surface wettability. A good surface wettability indicates a clean surface.

PROCEDURE FOR THE DETERMINATION OF THE GRENZFLÄCHENSPANNUNG BETWEEN TWO NOT MIXABLE LIQUIDS

PROCEDURE AND DEVICE FOR EXAMINING A SURFACE QUALITY

Contact angle analyzer

Method of determining ink receptivity on surfaces

MEASUREMENT OF PHYSICAL PROPERTIES USING A MOBILE DEVICE

Systems, methods, and computer program products for measurement of surface properties using a mobile device are described, the surface properties including interfacial (surface) tension, contact angle (static, advancing, or receding), solid surface energy, and rolling or sliding angle on an inclined surface. The system has a support adapted to receive a mobile device with a camera and a processor. A structure is coupled to the support that is adapted to removably receive measurement components. The measurement components are configurable to place a droplet or a bubble within a field of view of the camera. Software on the mobile device is configured to operate the camera to take an image of the droplet or the bubble within the field of view of the camera, and to determine one or more physical properties of the droplet or the bubble based on an analysis of the image.

Method and apparatus for automatic determination of the behaviour of a drop of a liquid with respect to a surface of a material

The apparatus comprises an optical bench 10 on which are mounted a support 110, an illuminator 121, 122, an electronic camera 123, 124, an analog-to-digital converter 130, a monitor 140 and a computer 150 with a console 151, a screen 152 and, if required, a printer 153. The image is formed of the silhouette of the surface of a sample of a material and of a drop of a liquid, which are placed on the support and illuminated in backlighting, this image is digitised and processed in order to identify its contour in order to automatically calculate the angle of drop/surface contact or the elongation of the hanging drop as a function of its distance from the surface. Application to studying the spreading or stretching aptitude of liquid on surfaces of materials.

Procede et appareil pour la determination automatique du comportement d'une goutte d'un liquide par rapport a une surface d'un materiau

L'appareil comprend un banc d'optique 10 sur lequel sont montes un support 110, un illuminateur 121, 122, une camera electronique 123, 124, un convertisseur analogique-digital 130, un moniteur 140 et un calculateur 150 avec un pupitre 151, un ecran 152 et, au besoin, une imprimante 153. On forme l'image de la silhouette de la surface d'un echantillon d'un materiau et d'une goutte d'un liquide qui sont places sur le support et eclaires en contre-jour, on digitalise et traite cette image pour en identifier le contour afin de calculer automatiquement l'angle de contact goutte-surface ou l'allongement de la goutte pendante en fonction de sa distance a la surface. Application a l'etude de l'aptitude a l'etendage ou etalement de liquide sur des surfaces de materiaux.

METHOD AND SYSTEM FOR PHYSICOCHEMICAL PROPERTIES COMBINED MEASUREMENTS OF A PRODUCT ON A POROUS MATERIAL

METHOD FOR DETERMINING THE INTERFACIAL TENSION BETWEEN TWO IMMISCIBLE LIQUIDS

The invention relates to a method for determining the interfacial tension between two immiscible liquids (1, 2). According to said method, a first medium (3) is introduced into a receiving device (5) in one step, and the first liquid is introduced into the receiving device (5) in another step, the first liquid (1) bordering said medium (3). The second liquid (2) is introduced into the receiving device (5) in yet another step, the second liquid (2) bordering the first liquid (1). A second medium (4) is introduced into receiving device (5) in an additional step, the second medium (4) bordering the second liquid (2). The media (3, 4) and the liquids (1, 2) introduced into the receiving device (5) are monitored in order to determine the interfacial tension.

OPTICAL DEVICE FOR DETERMINING AT LEAST ONE DIMENSIONAL CHARACTERISTIC OF A DROP OF LIQUID

The invention relates to an optical device for determining at least one dimensional characteristic of a drop of liquid applied to a surface (3) of a body (4) to be analysed, said optical device comprising a camera (8) defining an observation axis (82) that is perpendicular to the surface (3), a first mirror (10) for observing the drop of liquid (2) a second time on a second observation plane parallel to the observation axis (82) of the camera (8), and a second mirror (11) for observing the drop of liquid (2) a third time on a third observation plane parallel to the observation axis (82) of the camera (8) and perpendicular to the second observation plane.

METHODS OF SELECTING AND DEVELOPING A PARTICULATE MATERIAL

Methods and devices for determining the contact angle of a drop of liquid placed on a substrate

The invention relates to improvements to methods and devices for determining the contact angle of a drop of liquid placed on a substrate. The device comprises: a support 12 for a substrate 11 which receives a drop of liquid 9; a light source 1; optical means, formed for example by a plate with parallel faces 21 rotatable about its axis 22 and whose inclination with respect to the axis may be modified, with a reflecting prism 5a, for forming a primary beam 6a, advantageously annular, striking the interface 8 between drop and substrate; a receiving surface 13a, 13b formed by a reflection diffusing surface; a reflecting surface 17; and a camera C.

Wettability estimation by differential multi-phase simulation

Contact angles of multi-phase mixtures in a porous medium are determined by comparing images generated by flow simulations with a measured image of a fluid flow in the porous medium. A measured image can be compared image element by image element with corresponding locations in the flow simulations. A plurality of flow simulations associated with a corresponding plurality of contact angles is used for the comparison, and a contact angle associated with the greatest number of matches between the measured image and the flow simulation is selected.

ИНФИЛЬТРУЕМОЕ ВЕЩЕСТВО ДЛЯ ИСПОЛЬЗОВАНИЯ В СТОМАТОЛОГИИ

FIELD: medicine. SUBSTANCE: invention refers to dentistry and concerns an infiltrated substance containing low viscosity light hardened resin and having a penetration coefficient >50 cm/s. The invention also concerns an enamel infiltration kit comprising (a) a conditioner containing hydrochloric acid; and (b) said infiltrated substance. EFFECT: invention allows improving resin penetration into initial or developed enamel damages. 13 cl, 10 dwg, 2 tbl, 6 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 440 090 (13) C2 (51) МПК A61K 6/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008135008/15, 11.05.2007 (24) Дата начала отсчета срока действия патента: 11.05.2007 (43) Дата публикации заявки: 10.03.2010 Бюл. № 7 (56) Список документов, цитированных в отчете о поиске: Н. MEYER-LUECKEL et al. Influence of the application time on the penetration of different dental adhesives and a fissure sealant into artificial subsurface lesions in bovine enamel// Dental Materials (2006) 22, 22-28. US 2003/0175218 A1, 18.09.2003. US 2003/0157034 A1, 21.08.2003. US 2002/0081550 Al, 27.06.2002. RU 2057522 C1, 10.04.1996. RU (см. прод.) C 2 C 2 (45) Опубликовано: 20.01.2012 Бюл. № 2 R U 2 4 4 0 0 9 0 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.08.2008 (86) Заявка PCT: EP 2007/004204 (11.05.2007) (87) Публикация заявки РСТ: WO 2007/131725 (22.11.2007) Адрес для переписки: 129090, Москва, пр-кт Мира, д.6, "Патентноправовая фирма "ЮС", С.В. Ловцову (54) ИНФИЛЬТРУЕМОЕ ВЕЩЕСТВО ДЛЯ ИСПОЛЬЗОВАНИЯ В СТОМАТОЛОГИИ (57) Реферат: Изобретение относится к области стоматологии и касается инфильтруемого вещества, содержащего светоотверждающуюся смолу низкой вязкости и имеющего коэффициент проникновения >50 см/с. Изобретение также касается комплекта для инфильтрации в эмаль, включающего (а) кондиционер, содержащий соляную кислоту; и (b) указанное инфильтруемое вещество. Изобретение позволяет улучшить проникновение ...

СПОСОБ ОПРЕДЕЛЕНИЯ СМАЧИВАЕМОСТИ ПОРИСТЫХ МАТЕРИАЛОВ

FIELD: physics. SUBSTANCE: method of determining wettability of porous materials involves placing a sample of porous material into a calorimeter cell and facilitating contact between the sample and the wetting liquid. Measurement results are constantly recorded based on thermal effect from squeezing the liquid. The limiting wetting angle of pores filled with the liquid is calculated. Pressure in the cell with the sample is increased until all pores in the sample are filled with the liquid and then reduced to the initial pressure while constantly recording thermal flux into the cell. This enables, based on measurement results based on thermal effect from squeezing the liquid, to calculate the limiting wetting angle of pores filled with the liquid, as well as pores free from the liquid. EFFECT: possibility of analysing wettability of porous samples by determining the limiting wetting angle for pores of different diameter with high accuracy. 13 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 468 353 (13) C1 (51) МПК G01N 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011130451/28, 22.07.2011 Приоритет(ы): (22) Дата подачи заявки: 22.07.2011 (73) Патентообладатель(и): Шлюмберже Текнолоджи Б.В. (NL) (45) Опубликовано: 27.11.2012 Бюл. № 33 C 1 2 4 6 8 3 5 3 R U C 1 Адрес для переписки: 119285, Москва, ул. Пудовкина, 13, ООО "Технологическая Компания Шлюмберже", В.Н. Архиповой, рег.№ 1095 (54) СПОСОБ ОПРЕДЕЛЕНИЯ СМАЧИВАЕМОСТИ ПОРИСТЫХ МАТЕРИАЛОВ (57) Реферат: Способ определения смачиваемости пористых материалов предусматривает размещение образца пористого материала в ячейке калориметра и обеспечение контакта образца со смачивающей жидкостью. Осуществляют постоянную регистрацию теплового потока в ячейку и на основании результатов измерения с учетом теплового эффекта от сжимания жидкости рассчитывают краевой угол смачивания пор, заполнившихся жидкостью. Затем осуществляют повышение давления в ячейке с ...

Flexible arrangement for optical measurement of surface characteristics has illumination unit that can be variably moved along optical axis and that is suitable for increasing/reducing specimen space

The arrangement has an optical system with an illumination unit (3) and an image acquisition unit (4) for imaging the transition region between the drops (1) and the specimen surface, a suitable specimen table (5) for mounting the specimen body (2) between the illumination and image acquisition units and a dosing device (6) above the body for dosing one or more drops of one or more liquids onto the specimen body. The illumination unit can be variably displaced along the optical axis and is suitable for increasing and/or reducing the specimen space (7).

Stirrer for tensiometer and contact angle measuring apparatus comprises electric motor with shaft, on whose end rare earth magnet is mounted which rotates magnetic stirrer rod in vessel containing test liquid

A stirrer for a tensiometer and contact angle measuring apparatus comprises an electric motor (5) with a shaft (8), on whose end a rare earth magnet (7) is mounted. This rotates a magnetic stirrer rod (3) in a vessel (1) containing the test liquid (2).

Contact angle measuring apparatus

Apparatus for measuring the angle of contact between a drop of liquid (16) and the surface of a specimen (16) has a light source (10) in the form of a high intensity LED which projects light on to the drop (16) and identifying means in the form of a monocular (8) for observing the light reflected from the drop (16). The monocular (8) establishes a position to which no light is reflected in terms of the angle of inclination of the optical axis of the monocular with respect to the vertical.

MEASUREMENT OF INTERFACIAL SURFACE TENSION

Method for measuring fat content in liquid by using contact area diffusion factor

The present invention relates to a method for measuring fat content in a liquid by using a contact area diffusion factor. More specifically, the present invention relates to a method for measuring fat content in a liquid from the CADF value of a droplet.

IMPROVEMENTS WITH the PROCESSES AND DEVICES TO DETERMINE the CONTACT ANGLE Of a DROP OF LIQUID POSEE ON a SUBSTRATE

Le dispositif comprend : un support 12, pour un substrat 11 qui reçoit une goutte de liquide 9; une source de lumière 1; des moyens optiques, constitués par exemple par une lame à faces parallèles 21 apte à être entraînée en rotation autour de son axe 22 et dont l'inclinaison peut être modifiée par rapport à l'axe, avec un prisme de renvoi 5a, pour former un faisceau primaire 6a, avantageusement annulaire, frappant l'interface 8 entre goutte et substrat; une surface réceptrice 13a, 13b constituée par une surface diffusante en réflexion; une surface réfléchissante 17; et une caméra C. The device comprises: a support 12, for a substrate 11 which receives a drop of liquid 9; a light source 1; optical means, constituted for example by a blade with parallel faces 21 capable of being driven in rotation about its axis 22 and the inclination of which can be modified with respect to the axis, with a return prism 5a, to form a primary beam 6a, advantageously annular, striking the interface 8 between drop and substrate; a receiving surface 13a, 13b constituted by a diffusing surface in reflection; a reflecting surface 17; and a C.

Method for determining the surface energies of solids by wettability and device for implementing this method

La présente invention concerne un procédé et un dispositif pour déterminer les énergies de surface de solides. Le dispositif comprend une caméra vidéo 14 destinée à faire une acquisition vidéo de l'image d'une goutte 12 d'un liquide à étudier, déposée sur un support 11 dans une enceinte 10 contenant de la vapeur dudit liquide. La caméra transmet des signaux à un système vidéo 15 couplé à un moniteur 16 et à un micro-ordinateur 17 conçu pour effectuer une numérisation de l'image. Le but de cette invention est de déterminer des paramètres physiques statiques et dynamiques de liquides et en particulier de polymères.

SYSTEM AND METHOD FOR ANALYZING INTERACTION BETWEEN A DROP OF FLUID AND ANOTHER DROP OR A SOLID SURFACE

L'invention se rapporte à un système et procédé d'analyse de l'interaction entre une goutte de fluide non miscibles dans un milieu ambiant et une surface, cette surface étant une autre goutte de fluide ou bien alternativement une surface solide. Le système comprend en outre des moyens de traitement (40) adaptés pour déterminer en fonction de données collectées par un dispositif (30) d'acquisition et de traitement d'image une valeur de tension interfaciale de la goutte (G, G1, G2) après un contact entre la goutte (G, G1, G2) et la surface (G2, S), et une valeur de différence de pression entre la pression interne de la goutte (G, G1, G2) et la pression dans le milieu ambiant (M) sans avoir besoin de connaitre la position de l'apex de la goutte (G, G1, G2). L'invention se rapporte également à un dispositif de formation et de mise en contact de gouttes et à un dispositif de formation et de mise en contact d'une goutte de fluide avec une surface solide en vue de leur analyse par le système approprié.

SURFACE TREATMENT METHOD, SURFACE TREATMENT APPARATUS, SURFACE TREATMENT SUBSTRATE, ELECTRO-OPTICAL APPARATUS, AND ELECTRONIC EQUIPMENT

Determining Physical Parameters of a Liquid

A method for determining physical parameters of a liquid to be aspirated and/or dispensed by a laboratory automation device comprises: picking up of a pipette with the laboratory automation device; lowering the pipette into a sample container with the laboratory automation device, the sample container containing the liquid; aspirating and dispensing air and liquid with the laboratory automation device in such a way, that a liquid level in the pipette solely rises in a first step and solely lowers in a second step, such that an interior surface of the pipette is wetted with liquid solely one time; and during aspirating and dispensing air and liquid, measuring a pressure curve in the pipette and determining the physical parameters from the pressure curve, the physical parameters comprising at least one of a surface tension, a wetting angle and a viscosity.

КОЭФФИЦИЕНТ ДИФФУЗИИ ПЛОЩАДИ КОНТАКТА ДЛЯ КОЛИЧЕСТВЕННОГО ОПРЕДЕЛЕНИЯ СОДЕРЖАНИЯ ЖИРОВ В ЖИДКОСТИ

Изобретение относится к области измерительной техники и может быть использовано для измерения содержания жиров в жидкости. В настоящем изобретении предлагается способ определения присутствия жиров в телесной жидкости путем фотографирования капли телесной жидкости и расчета изменения площади контакта капли телесной жидкости и коэффициента диффузии площади контакта. Кроме того, в соответствии с настоящим изобретением жиры можно легко обнаружить путем использования простого съемочного оборудования, когда необходимо обнаружить жиры, например, при липосакциях, различных ортопедических операциях, борьбе с ожирением и т.д. Технический результат – повышение достоверности диагностирования и предупреждения развития синдрома жировой эмболии. 3 н. и 6 з.п. ф-лы, 11 ил.

Verfahren zur Bestimmung der Grenzflächenspannung zwischen zwei nicht mischbaren Flüssigkeiten

System and method for dynamic contact angle measurement

Polycrystalline diamond microstructures

METHOD AND MEANS FOR INFILTRATING ENAMEL LESIONS

The present invention refers to a method of infiltrating enamel for the p revention and/or treatment of carious lesions comprising (a) exposing an ena mel area to a conditioner comprising hydrochloric acid; (b) exposing the con ditioned enamel area to an infiltrant; and (c) curing the infiltrant. The pr esent invention further refers to a kit for carrying out the method of infil trating enamel, which comprises a conditioner comprising hydrochloric acid a nd an infiltrant comprising at least one low viscous dental resin. Alternati vely, the kit comprises ready-to-use means for carrying out the method of in filtrating enamel, e.g. application strips with delivery pads soaked with co nditioner or infiltrant. The present invention also refers to a method for i dentifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient o f >50 cm/s or comprising a low viscous light curing resin having a penetr ation coefficient of >50 cm/s.

OPTICAL DEVICE TO DETERMINE AT LEAST A CHARACTERISTIC DIMENSIONNELLED' A DROP OF LIQUID

Dispositif optique pour déterminer au moins une caractéristique dimensionnelle d'une goutte de liquide apposée sur une surface (3) d'un corps (4) à analyser, le dispositif optique comprenant une caméra définissant (8) un axe d'observation (82) perpendiculaire à la surface (3), un premier miroir (10) pour permettre une deuxième observation de la goutte de liquide (2) suivant un deuxième plan d'observation parallèle à l'axe d'observation (82) de la caméra (8), et un deuxième miroir (11) pour permettre une troisième observation de la goutte de liquide (2) suivant un troisième plan d'observation parallèle à l'axe d'observation (82) de la caméra (8) et perpendiculaire au deuxième plan d'observation. Optical device for determining at least one dimensional characteristic of a drop of liquid affixed to a surface (3) of a body (4) to be analyzed, the optical device comprising a camera defining (8) an axis of observation (82) perpendicular to the surface (3), a first mirror (10) to allow a second observation of the drop of liquid (2) along a second observation plane parallel to the observation axis (82) of the camera (8 ), and a second mirror (11) to allow a third observation of the drop of liquid (2) along a third observation plane parallel to the observation axis (82) of the camera (8) and perpendicular to the second viewing plane.

METHOD AND APPARATUS FOR AUTOMATICALLY DETERMINING THE BEHAVIOR OF A DROP OF LIQUID RELATIVE TO A SURFACE OF A MATERIAL

PROCESS AND DEVICE TO DETERMINE the CONTACT ANGLE Of a DROP OF LIQUID POSEE ON a SOLID HORIZONTAL SUBSTRATE OR LIQUID

반응성이 있는 액체 산화물과 고체 산화물의 젖음각을 측정하는 장치 및 방법

... 본 발명은 반응성 또는 용해도가 있는 액체 산화물과 고체 산화물 사이의 젖음각을 측정하기 위한 장치에 관한 것으로, 내부를 가열하는 발열체와 단열성 벽을 포함하는 본체; 상기 본체 내부에 위치하며 고체 상태의 제1 산화물 시편이 위치하는 스테이지; 제2 산화물을 액체 상태로 보관하고, 액체 상태의 제2 산화물을 액적 형태로 상기 제1 산화물 시편의 표면에 낙하시키는 액적 토출기; 및 상기 제1 산화물 시편과 상기 제2 산화물 액적의 젖음각을 촬영하는 화상기록장치를 포함한다. 본 발명의 젖음각 측정 장치는, 별도의 액적 토출기를 구비하여 액체 산화물을 액적 형태로 고체 시편에 낙하시킴으로써, 종래에 고체 시편의 표면에 올린채로 가열하는 경우에 비하여 고체 산화물과 액체 산화물의 접촉면에서 반응 또는 용해가 진행되는 시간을 최소화하여 더욱 정확한 젖음각 측정을 수행할 수 있는 효과가 있다.

CARBON FIBER UNIDIRECTIONAL PACKING SAMPLE PRODUCTION APPARATUS FOR MEASURING CONTACT ANGLE OF CARBON FIBER AND SAMPLE PRODUCTION METHOD

According to a first embodiment of the present invention, a carbon fiber unidirectional packing sample production apparatus includes: a body; a carbon fiber insertion unit disposed at an upper end of the body; a carbon fiber pulling unit provided adjacent to one side of the carbon fiber insertion unit to operate right/left; a carbon fiber cutting unit provided in the body while being disposed on a lower side of the carbon fiber insertion unit to operate up/down; and a control unit provided on a front surface of the body to control the carbon fiber pulling unit and the carbon fiber cutting unit, wherein a plurality of carbon fiber strands are divided into two bundles and fixed to the carbon fiber pulling unit on one side of the carbon fiber insertion unit, and moved in one direction toward an opposite side of the carbon fiber insertion unit so as to be packed, and both ends of the packed bundles are cut by the carbon fiber cutting unit to produce a packing sample. Accordingly, high accuracy ...

Polycrystalline diamond microstructures

METHODS OF PROVIDING PRODUCT CONSISTENCY

RELIABLE DETERMINATION OF CONTACT ANGLE OF SESSILE DROPS

Various examples are provided related to determination of contact angle of sessile drops. In one example, a method includes determining a volume of a sessile drop of fluid disposed on a test surface; determining a height of the sessile drop of fluid; and determining a contact angle of the sessile drop of fluid based upon the volume and the height of the sessile drop. In another example, a system includes a volume sensing, a height sensing, and computing that can determine a volume and height of a sessile drop using volume and height data from the sensing, and determine a contact angle of the sessile drop with the volume and the height. The contact angle and surface tension can be determined with at least three of volume, a height, a footprint radius, a radius of maximum horizontal extent, and/or an apex radius of curvature of the drop. 1. A system for determining a contact angle of a sessile drop on a test surface , comprising:a volume sensing device that provides volume data corresponding to the sessile drop on the test surface;a height sensing device that provides height data corresponding to the sessile drop on the test surface; and obtain the volume data from the volume sensing device and the height data from the height sensing device;', 'determine a volume and a height of the sessile drop using the volume data and image data, the height being a distance between the test surface and an apex of the sessile drop; and', 'determine a contact angle of the sessile drop based at least in part upon the volume and the height of the sessile drop., 'a computing device configured to2. The system of claim 1 , wherein the volume sensing device is a precision syringe configured to dispense a defined volume of a fluid on a test surface.3. The system of claim 2 , wherein the volume data comprises the volume of the fluid dispensed by the precision syringe.4. The system of claim 1 , wherein the height sensing device is an image capture device configured to obtain an image of a ...

Method and device for determining the angle of contact of a drop of liquid on a substrate

Verfahren und Vorrichtung zur Bestimmung des Berührungswinkels eines auf einen horizontalen, festen oder flüssigen Träger aufgebrachten Tropfens

Vorrichtung zur Prüfung der Benetzbarkeit von Oberflächen

METHOD FOR DETERMINATION OF WETTABILITY OF POROUS MATERIALS

Method for determination of wettability of porous materials comprises placing of a sample of a porous material in a cell of a calorimeter and contacting the sample with a wetting fluid. A heat flow into the cell is continuously measured and based on results of the measurement and taking into account a thermal effect of the fluid compression a first wetting contact angle of pores filled with the fluid is calculated. Then a pressure in the cell with the sample is increased starting from an initial value until pores of the sample are completely filled with the fluid and then the pressure is reduced to the initial value with continuous measuring of a heat flow into the cell. It enables calculation of a second wetting contact angle for pores completely filled with the fluid and of a third wetting contact angle for pores free from the fluid.

Method for measuring glass-transition temperature of a polymer film

The invention discloses a measuring method, in particular, a method for measuring glass-transition temperature of a solid high polymer film. The method comprises the following steps: preparing a polymer film on a substrate, forming a droplet of the test solution on the surface of the film, then measuring and recording the initial value of a contact angle theta,formed of the droplet and the polymer film, as well as the diameter D of the three-phase line of the droplet; then injecting test solution to the droplet on the polymer film and recording the value of the contact angle theta and the diameter D of the three-phase line of the droplet as the volume of the droplet increases; and recording the values of jumping angle delta theta,at different temperatures to obtain the glass-transition temperature by comparison of the values of delta theta. The method of the invention has the advantage of simplicity in operation (especially for the film formed by high polymer), low investment and accurate ...

PHYSICO-CHEMICAL COMBINEES METHOD AND SYSTEM OF MEASUREMENT OF PROPERTIES Of a PRODUCT ON a POROUS MATERIAL

La présente invention concerne une méthode et un système de présélection d'additif pour une composition aqueuse destinée à être en contact avec un matériau poreux (2). Selon la méthode, on effectue les étapes suivantes : - on détermine à partir du profil d'une goutte de solution aqueuse comportant ledit additif disposée sur un échantillon dudit matériau poreux, au moins le volume de ladite goutte, - on répète cette détermination du volume de la goutte dans le temps, - on établit à partir de l'évolution du volume au cours du temps, la capacité d'imbibition de la solution dans le matériau.

Optical device for determining dimensional characteristics of liquid droplet on a surface has two mirrors for observation of droplet along second observation plane parallel to observation axis of camera

Dispositif optique pour déterminer au moins une caractéristique dimensionnelle d'une goutte de liquide apposée sur une surface (3) d'un corps (4) à analyser, le dispositif optique comprenant une caméra définissant (8) un axe d'observation (82) perpendiculaire à la surface (3), un premier miroir (10) pour permettre une deuxième observation de la goutte de liquide (2) suivant un deuxième plan d'observation parallèle à l'axe d'observation (82) de la caméra (8), et un deuxième miroir (11) pour permettre une troisième observation de la goutte de liquide (2) suivant un troisième plan d'observation parallèle à l'axe d'observation (82) de la caméra (8) et perpendiculaire au deuxième plan d'observation.

APPLIANCE FOR DETERMINING THE CONTACT ANGLE OF A DROP APPLIED TO A BASE

The invention relates to an appliance for determining the contact angle (γ) of a drop (2) applied to a base (1). The inventive appliance comprises a dosing device (3) for applying the drop (2) in a defined manner and has a camera (4) with an allocated evaluating device and display unit (5). The aim of the invention is to provide a compact design that is easy to handle. To this end, the appliance is configured as a hand-held unit comprising a supporting structure or housing which accommodates the dosing device (3), an illuminating device (6), the camera (4), the evaluating device and the display unit (5) and which can be placed on said base (1).

System and mehtod for measuring glass transition temperature

A system and method for measuring a glass transition temperature of a hydrophobic polymer having a surface tagged with an atmospheric plasma.

RESONANTLY-DRIVEN DROP CONTACT-LINE MOBILITY MEASUREMENT

The present disclosure relates to, inter alia, systems and methods for measuring contact-line mobility of a liquid on a solid substrate. The system includes a motion-generation component, a motion-measurement component, and a computer component. The motion-generation component can include an actuator and a controller, the actuator being adapted to mount a solid substrate and effective to impart periodic forcing to the solid substrate when a test droplet of the liquid is deposited thereon, and the controller being adapted to tune frequency and amplitude of the forcing to induce measurable contact-line displacement of the test droplet on the solid substrate. The motion-measurement component includes an image acquisition device adapted for capturing images of the test droplet. The image acquisition device has requisite spatial and temporal resolution to enable acquisition of image data of the test droplet, the image data including contact-line displacement, contact-line speed, and contact angle at or near contact-line. 1. A system for measuring contact-line mobility of a liquid on a solid substrate , wherein said system comprises: (i) said actuator adapted to mount a solid substrate, and effective to impart periodic forcing to the solid substrate when a test droplet of the liquid is deposited thereon; and', '(ii) said controller is adapted to tune frequency and amplitude of the forcing to induce measurable contact-line displacement of the test droplet on the solid substrate;, '(a) a motion-generation component comprising an actuator and a controller, wherein(b) a motion-measurement component comprising an image acquisition device adapted for capturing images of the test droplet deposited on the solid substrate before, during and/or after the forcing imparted by the actuator, said image acquisition device having requisite spatial and temporal resolution to enable acquisition of image data of the test droplet comprising contact-line displacement, contact-line speed, and ...

Methods of diagnosing diseases of mucosal surfaces

Provided are methods for assessment of surface rugosity of a layer of live cells using tools that determine contact angle and contact angle hysteresis.

GREASE EVALUATION

Methods of evaluating viscous compositions are disclosed. The methods may be used to evaluate degradation levels of lubricants including grease. The methods may include preparing a surface for testing by leveling and flattening a viscous composition, placing a drop of a liquid on the flattened leveled surface, evaluating the observed contact angle between the drop and the surface, and then comparing the observed contact angle to a reference contact angle. 1. A method of evaluating lubricant comprising:a. acquiring a sample of a mechanically used grease from a mechanical device;{'claim-text': ['i. orienting a portion of the sample to level and', 'ii. flattening the portion of the sample;'], '#text': 'b. preparing a grease surface for testing by'}c. placing a drop of a liquid on the grease surface;d. evaluating an observed contact angle between the drop and the grease surface; ande. comparing the observed contact angle to a reference contact angle;f. wherein the mechanically used grease is degraded as compared to a pristine grease of the same type.2. The method of wherein the mechanically used grease has experienced bleed off as compared to the pristine grease of the same type.3. The method of wherein the mechanically used grease has experienced oxidation as compared to the pristine grease of the same type.4. The method of wherein the mechanically used grease has experienced mechanical degradation as compared to the pristine grease of the same type.5. The method of wherein the mechanically used grease has experienced contamination as compared to the pristine grease of the same type.6. The method of wherein the mechanically used grease has experienced water contamination as compared to the pristine grease of the same type.7. The method of wherein the observed contact angle correlates with the kinematic viscosity of the mechanically used grease across varying degradation levels for a degradation type wherein the degradation type is selected from bleed off claim 1 , ...

Method of evaluating wetting characteristic of object

Provided is a means for evaluating the wetting characteristic of an object such as a cell sheet and a culture dish in a non-contact fashion. The wetting characteristic of an object is evaluated by a method comprising the steps of: (1) removing a liquid by jetting a gas at a surface of the object covered with the liquid, (2) measuring a dimension of a region in which the liquid is removed after the completion of the gas jetting and (3) evaluating the wetting characteristic of the object using the measured dimension as an index.

Surface Analysis Tools for Process Control of Laser Treatment of Composites

Aspects of the present disclosure are directed methods and systems pertaining to the use of at least one methodology or technique for the purpose of at least one of either: 1) determining that a desired and predetermined level or “degree” of surface treatment of a composite substrate surface has or has not been conducted (e.g., laser treatment of a composite substrate surface); and 2) that a composite substrate surface has been laser treated.

SURFACE TENSION MEASUREMENT METHOD BASED ON AXISYMMETRIC DROPLET CONTOUR CURVE

Disclosed is a method for measuring surface tension based on an axisymmetric droplet contour curve. The method comprises: photographing a suspended droplet image, and extracting a droplet contour curve; selecting a measurement point on the droplet contour curve; and calculating the surface tension of a liquid using the following formula 2. The method according to claim 1 , wherein when an upper end surface of the droplet is a plane claim 1 , the pressure P is obtained by the formula P=ΔρgH claim 1 , where H is a height of the cross section from the upper end surface of the droplet. The invention belongs to the technical field of physical property measurement, and relates to a surface tension measurement method based on an axisymmetric droplet contour curve.Surface tension is one of the most important thermophysical properties in fluid mechanics. It has an important influence on the heat and mass transfer of the fluid interface, as well as the flow and heat transfer of the micro-shrinkage channel, and thus has become the focus of related research. Surface tension measurement can provide relevant information about the interaction between gas and liquid, and liquid and liquid. From this information, it can be deduced that the material has various important characteristics such as adhesion, infiltration, biocompatibility, lubrication, and adsorption, so as to provide important support for the development of related science and technology.The measurement methods mainly include a maximum bubble method, a maximum tension method, a capillary method, a drop weight method, a droplet contour method, and the like. Among them, the droplet contour method requires fewer measurement samples, has higher accuracy and a wide use temperature range, which is widely applied. However, the droplet contour method includes performing a fitting solution to each point on the droplet profile, which involves differential equations and optimization solutions, and the solution process is ...

ORGANIC RESIDUE INSPECTING METHOD AND LIQUID DISCHARGE HEAD PRODUCING METHOD

A method of detecting an organic residue is provided. The method comprises a step of bringing a liquid A into contact with a surface of a base material; a step of measuring the contact angle (i) of a liquid B on the surface with which the liquid A came into contact; a step of heating and drying the base material; a step of measuring the contact angle (ii) of the liquid B on the dried surface; and a step of comparing the contact angle (i) with the contact angle (ii). 1. A method of detecting an organic residue on a surface of a base material , the method comprising:bringing a liquid A into contact with the surface of the base material;measuring a contact angle (i) of a liquid B on the surface with which the liquid A came into contact;heating and drying the base material;measuring a contact angle (ii) of the liquid B on the dried surface; andcomparing the contact angle (i) with the contact angle (ii).2. The method of detecting an organic residue according to claim 1 , further comprising:forming an organic film on the surface of the base material before bringing a liquid A into contact with the surface of the base material,the organic film on the surface of the base material is removed by bringing the liquid A into contact with the surface of the base material in the liquid A-bringing step.3. The method of detecting an organic residue according to claim 2 , wherein the organic film comprises cyclized rubber resin.4. The method of detecting an organic residue according to claim 2 , wherein the organic film comprises a positive photosensitive resin.5. The method of detecting an organic residue according to claim 1 , wherein the liquid A is at least one of a polar organic solvent and water.6. The method of detecting an organic residue according to claim 1 , wherein the liquid A is at least one of an organic solvent having a hydroxyl group and water.7. The method of detecting an organic residue according to claim 1 , wherein when an organic residue is present on the ...

APPARATUS AND METHODS FOR THE QUALITATIVE AND QUANTITATIVE DETECTION OF AMPHIPHILES

Methods, apparatus, and kits for detecting and optionally quantifying amphiphilic compounds in the environment, in media samples, and on objects by determining an initial surface energy of a surface of a sample substrate, exposing the sample substrate surface to a medium that contains or is suspected to contain an amphiphilic compound for a time sufficient for the amphiphilic compound to interact with the sample substrate surface, determining a post-exposure surface energy of the surface of the sample substrate, determining a change in the surface energy of the sample substrate surface, and correlating the determined change in surface energy of the sample substrate surface with a presence and/or character of amphiphilic compounds in the medium. 1. A method of analyzing a sample medium , comprising:determining an initial surface energy of a surface of a sample substrate;exposing the sample substrate surface to a medium that contains or is suspected to contain an amphiphilic compound for a time sufficient for the amphiphilic compound to interact with the sample substrate surface;determining a post-exposure surface energy of the surface of the sample substrate;determining a change in surface energy of the sample substrate surface by comparing the determined initial surface energy to the determined post-exposure surface energy; andcorrelating the determined change in surface energy of the sample substrate surface with a presence and/or a character of amphiphilic compounds in the medium.2. The method of claim 1 , further comprising quantifying a concentration of amphiphilic compounds in the medium from the determined change in surface energy of the sample substrate.3. The method of claim 1 , wherein exposing the sample substrate surface to a medium that contains or is suspected to contain an amphiphilic compound includes exposing the sample substrate surface to a medium that is an environmental sample.4. The method of claim 1 , wherein exposing the sample substrate ...

METHODS AND APPARATUS TO DETERMINE INTEGRITY OF COMPOSITE STRUCTURES

Apparatus and methods to determine structural integrity of composites are described herein. One described example method for determining sufficiency of structural integration of a composite structure for an aircraft includes applying a fluid droplet to a surface of the composite structure, determining a three-dimensional contact angle between the surface and a portion of the droplet, comparing the three-dimensional contact angle to a threshold angle, and determining whether the structural integration of the composite structure is sufficient based on the comparison. 1. A method for determining sufficiency of structural integration of a composite structure for an aircraft , the method comprising:applying a fluid droplet to a surface of the composite structure;determining a three-dimensional contact angle between the surface and a portion of the droplet;comparing the three-dimensional contact angle to a threshold angle; anddetermining whether the structural integration of the composite structure is sufficient based on the comparison.2. The method as defined in claim 1 , further comprising selecting the composite structure for integration into an assembly when the structural integration is sufficient.3. The method as defined in claim 1 , further comprising approving the composite structure when the structural integration is sufficient after integration of the composite structure into an assembly.4. The method as defined in claim 1 , wherein the three-dimensional contact angle being less than the threshold angle indicates sufficient structural integration of the composite structure.5. The method as defined in claim 1 , wherein the three-dimensional contact angle being greater than the threshold angle indicates insufficient structural integration of the composite structure.6. The method as defined in claim 1 , wherein determining the three-dimensional contact angle comprises measuring a diameter and volume of the droplet.7. The method as defined in claim 1 , wherein the ...

CONTACT ANGLE MEASUREMENT APPARATUS

A contact angle measurement apparatus includes a liquid reservoir arrangement, a drop dosing device in fluid communication with the liquid reservoir arrangement and adapted for applying a liquid drop onto a sample surface, an illuminating device for illuminating each drop applied by the drop dosing device and disposed on the surface from a first side, and an image recording device for recording an image of each applied drop disposed on the surface. A liquid pressurizing system is adapted to pressurize liquid from the liquid reservoir arrangement, and a controller connected to the valve of each drop dosing device and to the liquid pressurizing system, which controls the operation of the liquid pressurizing system and, for each drop dosing device, opening and closing of the respective valve to apply a drop of the respective liquid from the respective liquid line to the surface in a jet of pressurized liquid. 1. A contact angle measurement apparatus for measuring a contact angle between a surface of a solid sample body and at least one drop of sample liquid disposed on the surface , the apparatus comprising:a liquid reservoir arrangement for storing at least one liquid,at least one drop dosing device in fluid communication with the liquid reservoir arrangement and adapted and arranged for applying a drop of a liquid stored in the liquid reservoir arrangement onto a surface of a sample body,an illuminating device adapted and arranged for illuminating each drop applied by the at least one drop dosing device and disposed on the surface from a first side of the at least one drop, andan image recording device adapted and arranged for recording an image of at least a transition region between the surface and each drop applied by the at least one drop dosing device and disposed on the surface in side view from a second side of the drop opposite the first side,characterized in thateach of the at least one drop dosing device comprises a liquid line, which comprises an outlet ...

SYSTEM AND PROCESS FOR ANALYZING THE INTERACTION BETWEEN A DROP OF FLUID AND ANOTHER DROP OR A SOLID SURFACE

The invention relates to a system and a process for analyzing the interaction between a drop of fluid which is immiscible in an ambient medium and a surface, this surface being another drop of fluid or else alternatively a solid surface. The system also comprises processing means suitable for determining, according to data collected by an image acquisition and processing device, a value of interfacial tension of the drop after a contact between the drop and the surface, and a value of pressure difference between the internal pressure of the drop and the pressure in the ambient medium without having to know the position of the apex of the drop. The invention also relates to a device for forming drops and bringing drops into contact and to a device for forming a drop of fluid and bringing a drop of fluid into contact with a solid surface for the purpose of analyzing them by means of the appropriate system. 1. A device for forming and bringing into contact drops of fluids which are immiscible in an ambient medium , comprising:a first capillary tube comprising an end capable of opening out into the ambient medium and a rectilinear end portion extending vertically from the end of the first capillary tube, conveying a first fluid through the first capillary tube to the end of the first capillary tube, and', 'controlling a volume of a first drop of first fluid formed at the end of the first capillary tube,, 'a first syringe-driver assembly connected to the first capillary tube and suitable fora second capillary tube comprising an end capable of opening out into the ambient medium and a rectilinear end portion extending vertically from the end of the second capillary tube, conveying a second fluid through the second capillary tube to the end of the second capillary tube, and', 'controlling a volume of a second drop of a second fluid formed at the end of the second capillary tube in the ambient medium,, 'a second syringe-driver assembly connected to the second capillary tube ...

Steeply-inclined ultra-thick coal seam gas control method based on binary composite liquid

A steeply-inclined ultra-thick coal seam gas control method based on a binary composite liquid. The method includes taking a clean fracturing fluid system and a microemulsion as a binary composite liquid. The method includes injecting the binary composite liquid into a coal mass by means of a main hydraulic fracturing and permeability improvement method of hydraulic fracturing and water jet slotting to form a coal mass gas extraction system of binary composite liquid fracturing and permeability improvement. The method includes investigating and analyzing a gas control effect of the steeply-inclined ultra-thick coal seam according to change characteristics and analysis of gas extraction flow rate, change characteristics and analysis of permeability coefficient of coal seam, change characteristics and analysis of gas natural desorption speed of coal mass, change characteristics and analysis of gas concentration of return air flow of working face and theoretical analysis of drilling cuttings index.

Apparatus and method for measuring surface tension

The present invention relates to an apparatus and method for measuring surface tension. More particularly, the present invention relates an apparatus and method for measuring surface tension through an electrical scheme which is simpler and has improved accuracy compared to a conventional optical scheme.

HYDROPHOBIC COATING CHARACTERIZATION

A system includes a processor and a memory storing instructions executable by the processor to actuate a component upon determining that a hydrophobic coating of a surface is degraded based on a comparison of a characteristic of a liquid droplet with a threshold value. 1. A system , comprising: a processor and a memory storing instructions executable by the processor to actuate a component upon determining that a hydrophobic coating of a surface is degraded based on a comparison of a characteristic of a liquid droplet with a threshold value.2. The system of claim 1 , the instructions further including instructions to compare an amount of distortion of an image reflected by the liquid droplet with a threshold distortion value.3. The system of claim 1 , the instructions further including instructions to determine an object on the surface is the liquid droplet before the comparison of the characteristic of the liquid droplet with the threshold value.4. The system of claim 1 , the instructions further including instructions to actuate a cleaning system to clean the surface before the comparison of the characteristic of the liquid droplet with the threshold value.5. The system of claim 1 , the instructions further including instructions to actuate a cleaning system to provide a specified amount of liquid to the surface before the comparison of the characteristic of the liquid droplet with the threshold value.6. The system of claim 1 , the instructions further including instructions to at least one of transmit a fault code and store the fault code upon determining that the hydrophobic coating of the surface is degraded.7. The system of claim 1 , the instructions further including instructions to increase an interval of actuation for a cleaning system upon determining that the hydrophobic coating of the surface is degraded.8. The system of claim 1 , the instructions further including instructions to compare a contact angle of the liquid droplet with a threshold contact ...

Dynamic contact angle measurement

A contact angle measurement system includes a housing that can hold a volume of a first fluid having a first density, an adjustable rock sample holder positioned within the housing, a fluid dropper attached to the housing, an image capturing a device, and a computer system. The holder can support a rock sample. An orientation of the holder relative to the housing is adjustable such that an outer surface of the rock sample is at a non-zero angle relative to a lower wall of the housing. When the orientation of the holder relative to the housing is such that the outer surface of the rock sample is at the non-zero angle relative to the lower wall, the fluid droplet traverses the outer surface of the rock sample. The image capturing device can capture images of the fluid droplet as the fluid droplet traverses the outer surface of the rock sample.

DYNAMIC CONTACT ANGLE MEASUREMENT

A contact angle measurement system includes a housing that can hold a volume of a first fluid having a first density, an adjustable rock sample holder positioned within the housing, a fluid dropper attached to the housing, an image capturing a device, and a computer system. The holder can support a rock sample. An orientation of the holder relative to the housing is adjustable such that an outer surface of the rock sample is at a non-zero angle relative to a lower wall of the housing. When the orientation of the holder relative to the housing is such that the outer surface of the rock sample is at the non-zero angle relative to the lower wall, the fluid droplet traverses the outer surface of the rock sample. The image capturing device can capture images of the fluid droplet as the fluid droplet traverses the outer surface of the rock sample. 1. A contact angle measurement system comprising:a housing configured to hold a volume of a first fluid having a first density, the housing comprising:an upper wall;a lower wall below the upper wall; andside walls connecting the upper wall and the lower wall, the upper wall, the lower wall and the side walls defining an enclosure to hold the volume of the first fluid;an adjustable rock sample holder positioned within the housing, the holder configured to support a rock sample, wherein an orientation of the holder relative to the housing is adjustable such that an outer surface of the rock sample is at a non-zero angle relative to the lower wall of the housing, wherein the holder comprises a stationary plate on a first end of the holder, a moveable plate on a second end of the holder opposite the first end, and a plate-adjusting screw running through the upper wall of the housing and coupled to the moveable plate, the plate-adjusting screw configured to adjust a position of the moveable plate, wherein the upper wall, the lower wall, and the side walls form an enclosure, and the holder is attached to the upper wall;a fluid dropper ...

MEASUREMENT OF PHYSICAL PROPERTIES USING A MOBILE DEVICE

Systems, methods, and computer program products for measurement of surface properties using a mobile device are described, the surface properties including interfacial (surface) tension, contact angle (static, advancing, or receding), solid surface energy, and rolling or sliding angle on an inclined surface. The system has a support adapted to receive a mobile device with a camera and a processor. A structure is coupled to the support that is adapted to removably receive measurement components. The measurement components are configurable to place a droplet or a bubble within a field of view of the camera. Software on the mobile device is configured to operate the camera to take an image of the droplet or the bubble within the field of view of the camera, and to determine one or more physical properties of the droplet or the bubble based on an analysis of the image. 1. A system for analyzing one or more physical properties of a droplet or a bubble comprising:a support adapted to receive a mobile device comprising a camera and a processor;a structure removably couplable to the support, the structure adapted to removably receive one or more measurement components, each of the one or more measurement components configurable to place the droplet or the bubble within a field of view of the camera, operate the camera to take an image of the droplet or the bubble within the field of view; and', 'determine one or more physical properties of the droplet or the bubble based on an analysis of the image., 'wherein the processor is configured to'}2. The system of claim 1 , wherein the mobile device comprises a smartphone or a tablet computer.3. The system of claim 1 , wherein the one or more physical properties comprises one or more surface thermodynamic properties.4. The system of claim 1 , wherein at least one of the one or more measurement components comprises a component for supporting a droplet on a horizontal surface claim 1 , a component for supporting a droplet on a ...

METHOD AND DEVICE FOR MEASURING SURFACE PROPERTIES

A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions. 1. A testing apparatus for determining a reduced contact angle of liquid on a test article , the testing apparatus comprising:an imaging sensor positioned at a known vantage point to a surface of a test article;a liquid dispenser to deposit a liquid drop on the surface in more than one droplet that each impart an amount of energy to the liquid drop; and after a time interval subsequent to a selected droplet for allowing the liquid drop to form a reduced contact angle with the surface, detect via the imaging sensor a geometric characteristic of the liquid drop that is related to reduced contact angle of the liquid drop to the surface; and', 'determine the reduced contact angle based at least in part upon the geometric characteristic., 'a data generator to2. The testing apparatus of claim 1 , wherein the liquid dispenser imparts sufficient energy by the droplets to the liquid droplet to form an advancing contact angle and delays a subsequent droplet over a time interval that is sufficient for the liquid drop to form a receding contact angle.3. The testing apparatus of claim 1 , wherein the liquid dispenser imparts sufficient energy by the droplets to the liquid droplet to distort the liquid drop laterally and push the liquid drop perimeter beyond its equilibrium shape such that upon relaxation the ...

MAGNETIC POLE PART, FIBER-REINFORCED MATERIAL, TEST APPARATUS THEREFOR, AND CONTROL METHOD FOR TEST APPARATUS

A magnetic pole part, a fiber-reinforced material, a test apparatus therefor, and a control method for the test apparatus. The test apparatus comprises: a container provided with an adhesive agent container therein for containing an adhesive agent; a positioning member for positioning a member to be tested inside the container and partially inside the adhesive agent container; an adhesive agent heating member ) for heating the adhesive agent; and an adhesive agent temperature sensor for measuring the temperature of the adhesive agent; a controller for turning on or off the adhesive agent heating member according to a temperature signal detected by the adhesive temperature sensor so as to keep the adhesive agent in the adhesive agent container at a preset temperature. 1. A test apparatus for member wettability research , comprising:a container, wherein an adhesive placing cavity configured to hold an adhesive is provided inside the container;a positioning member, configured to position a tested member at the adhesive placing cavity of the container, so that a part of the tested member is placed in the adhesive;an adhesive heating member, arranged inside or outside the adhesive placing cavity and configured to heat the adhesive;an adhesive temperature sensor, configured to measure a temperature of the adhesive inside the adhesive placing cavity;a collecting member, configured to acquire information of a meniscus formed between the tested member and the adhesive; anda controller, configured to control operation of the adhesive heating member to cause the adhesive to be at different temperatures, calculate, according to the acquired information of the meniscus at the different temperatures, corresponding contact angles between the tested member and the adhesive, and acquire a temperature of the adhesive corresponding to a smallest contact angle.2. The test apparatus according to claim 1 , further comprising a member heater and a member temperature sensor claim 1 , ...

METHOD TO EVALUATE CYLINDER CLEANLINESS

A method of gas cylinder interior cleanliness validation, including placing a volume of liquid on an interior surface of a component of a gas cylinder, measuring a contact angle of the liquid on the interior surface, and estimating from the contact angle the cleanliness of the interior surface with respect to at least one contaminant. 1. A method of gas cylinder interior cleanliness validation , comprising:a) placing a volume of liquid on an interior surface of a component of a gas cylinder,b) measuring a contact angle of the liquid on the interior surface, andc) estimating from the contact angle the cleanliness of the interior surface with respect to at least one contaminant.2. The method of claim 1 , wherein the liquid is water.3. The method of claim 1 , wherein the component is the interior surface of a cylinder body.4. The method of claim 3 , wherein the gas cylinder is made of aluminum.5. The method of claim 3 , wherein the aluminum is aluminum alloy 3003 and/or aluminum alloy 6061.6. The method of claim 3 , wherein the cylinder body was manufactured by cold extrusion.7. The method of claim 1 , wherein the at least one contaminant is zinc stearate.8. The method of claim 1 , wherein the interior surface is physically separated from the gas cylinder prior to having the volume of liquid placed thereon.9. The method of claim 1 , wherein the volume of liquid is placed on the interior surface in situ.10. The method of claim 1 , further comprising:a1) visually inspecting the interior surface for staining.11. The method of claim 1 , wherein:a contact angle that is less than or equal to 50 degrees indicates an adequately clean component, anda contact angle that is greater 50 degrees indicates an inadequately clean component.12. The method of claim 11 , wherein:a contact angle that is less than or equal to 30 degrees indicates an adequately clean component, anda contact angle that is greater 30 degrees indicates an inadequately clean component.13. The method of claim 1 , ...

ENHANCING HYDROCARBON RECOVERY

Methods of preparing an injection fluid for enhancing hydrocarbon recovery from a formation are described. A divalent salt is added to wastewater to form salinated wastewater. The salinated wastewater is tested for a shift in wettability. The salinated wastewater is tested for a change in oil recovery. The salinated wastewater is applied as an injection fluid. The shift in wettability is equal to or greater than a predetermined wettability differential value, and the change in oil recovery of the salinated wastewater is equal to or greater than a predetermined oil recovery differential value. 1. A method of preparing an injection fluid for enhancing hydrocarbon recovery from a formation , the method comprising:adding a divalent salt to a treated wastewater to form salinated treated wastewater, wherein the treated wastewater comprises a total dissolved solids (TDS) level that is less than 15,000 parts per million (ppm);testing the salinated treated wastewater for a shift in wettability;testing the salinated treated wastewater for a change in oil recovery; andapplying the salinated treated wastewater as an injection fluid, wherein the shift in wettability is equal to or greater than a predetermined wettability differential value, and the change in oil recovery of the salinated treated wastewater is equal to or greater than a predetermined oil recovery differential value.2. (canceled)3. The method of claim 1 , wherein the predetermined wettability differential value is a difference in the shift in wettability of a first rock sample tested with the wastewater prior to salination and following salination.4. The method of claim 3 , wherein the predetermined oil recovery differential value is a difference in an amount of oil recovered from a second rock sample with the wastewater prior to salination and following salination.5. The method of claim 4 , wherein testing the salinated wastewater for a change in oil recovery comprises performing a core flooding experiment.6. The ...

SYSTEMS AND METHODS FOR GENERATION AND OBSERVATION OF PENDANT DROPLETS BY PREFERENTIAL CONDENSATION

Systems and methods for droplet generation are suitable for use in connection with goniometers. Via preferential condensation, droplets of a variety of liquids may be formed at a variety of temperatures and pressures, eliminating the need for expensive and complex conventional droplet generation systems. Condensation and evaporation of a droplet may be controlled in order to evaluate advancing and receding contact angles in the goniometer. 1. A droplet generation system , comprising:a temperature control component;a thermal insulator; anda thermal conductor coupled to the temperature control component, the thermal conductor disposed at least partially within the thermal insulator and having a tip portion not surrounded by the thermal insulator,wherein the tip portion is configured to form, via condensation, a droplet thereon responsive to operation of the temperature control component and responsive to exposure of the tip portion to a vapor.2. The droplet generation system of claim 1 , wherein the tip portion extends beyond a surface of the thermal insulator.3. The droplet generation system of claim 1 , wherein the temperature control component comprises a peltier heat pump.4. The droplet generation system of claim 1 , wherein the first temperature control component comprises an indirect contact heat exchanger.5. The droplet generation system of claim 2 , wherein the tip portion is generally square in shape.6. The droplet generation system of claim 2 , wherein the tip portion is generally conical in shape.7. A contact angle goniometer system claim 2 , comprising:an enclosed chamber;a sample stage configured to receive sample material thereon; anda droplet generation system, wherein the droplet generation system comprises:a first temperature control component;a thermal insulator; anda thermal conductor coupled to the temperature control component, the thermal conductor disposed at least partially within the thermal insulator and having a tip portion not surrounded by ...

Method and System for Determining Contact Angle of Porous Media

The present invention discloses a method and system for determining contact angles of porous media. The method includes: in a displacement simulation experiment, injecting a displacement fluid into a real core, and performing computed tomography (CT) scanning on the core to determine three-dimensional images at different oil displacing moments; segmenting different phases of the three-dimensional images to obtain segmented three-dimensional images; marking a contact line between different phases according to the segmented three-dimensional images, where the phases are underground fluids or displacement fluids and a rock matrix in the displacement simulation experiment; and determining a contact angle of a porous medium at different positions at different moments according to the contact line. The method and system provided by the present invention can obtain the dynamic changing process of the contact angle at different positions in the core at different displacement moments, reflect the wettability of the real reservoir environment more accurately, and provide the basis for greatly enhancing oil recovery of the oil-gas field development.

Contact Angle Measuring Instrument

The subject matter of this invention is a device for measuring the contact angle of a liquid drop on a material surface. The shadow of a drop of a test liquid is projected onto a tilted shadow surface. An image of the drop on the shadow surface is recorded with an image recording device, and the contact angle is calculated from the image and the known angle of tilt of the shadow surface. A method that is suitable for this is likewise disclosed. 1. Device for measuring the contact angle of a liquid drop on a material surface , having a lighting device , an image recording device , a shadow surface , at least one data-processing device and at least one drop dispenser , whereina. the lighting device is designed to generate a light beam parallel to the material surface that reaches the shadow surface,b. the drop dispenser is suitable for applying a drop of sample liquid to the material surface, and the light beam of the lighting device projects a silhouette of the drop onto the shadow surface,c. the image recording device is designed to record an image arising on the shadow surface,characterized in thatd. the image recording device is arranged in front of the shadow surface in such a way that its optical axis deviates less than 30° from a perpendicular position vis-a-vis the shadow surface,e. the shadow surface is tilted at an angle less than 90° and greater than 0.5° vis-a-vis the material surface, andf. the data-processing device is designed to evaluate the measurement results of the image recording device and to calculate the contact angle from the image of the drop on the shadow surface and the knowledge of the angle of tilt of the shadow surface.2. Device according to claim 1 , characterized in that the lighting device generates the parallel light beam without redirection.3. Device according to claim 1 , characterized in that the lighting device generates the parallel light beam by forming the light beam of a light source and redirecting it with a mirror or prism.4 ...

DYNAMICALLY DETERMINING A ROCK WETTABILITY ALTERATION

Techniques for determining a rock wettability alteration include circulating a first brine fluid into a test cell that includes a rock sample and a hydrocarbon fluid disposed on a surface of the rock sample, the first brine fluid having a property at a first value; contacting the rock sample and the hydrocarbon fluid with the first brine fluid; measuring a first contact angle between the rock sample and the hydrocarbon fluid in contact with the first brine fluid; at least partially displacing the first brine fluid with a second brine fluid in the test cell, the second brine fluid having the property at a second value; contacting the rock sample and the hydrocarbon fluid with the second brine fluid; measuring a second contact angle between the rock sample and the hydrocarbon fluid in contact with the second brine fluid; and determining a wettability alteration of the rock sample based on at least one of the measured first or second contact angles. 1. A system , comprising:a test cell configured to enclose a rock sample and a hydrocarbon fluid disposed on a surface of the rock sample;a first brine fluid tank configured to hold a volume of a first brine fluid, the first brine fluid having a property at a first value;a second brine fluid tank configured to hold a volume of a second brine fluid, the second brine fluid having the property at the second value;at least one pump fluidly coupled to the test cell and the first and second brine fluid tanks; and controlling the at least one pump to circulate the first brine fluid into the test cell to contact the rock sample and the hydrocarbon fluid with the first brine fluid;', 'measuring a first contact angle between the rock sample and the hydrocarbon fluid in contact with the first brine fluid;', 'controlling the at least one pump to circulate the second brine fluid into the test cell to displace at least a portion of the first brine fluid in the test cell and contact the rock sample and the hydrocarbon fluid with the ...

Enamel infiltration kit

Kit zur Durchführung einer Infiltration von Zahnschmelz, mit den Bestandteilen: a) einem Konditionierer, der Salzsäure enthält; b) einem Infiltranten; wobei er wenigstens einen Applikationsstreifen und/oder Reinigungsstreifen und/oder eine Trenneinrichtung enthält. Kit for infiltration of tooth enamel, with the components: a) a conditioner containing hydrochloric acid; b) an infiltrant; wherein it contains at least one application strip and / or cleaning strip and / or a separating device.

Enamel infiltration kit

Kit zur Durchführung einer Infiltration von Zahnschmelz, mit den Bestandteilen: a) einem Konditionierer, der Salzsäure enthält; b) einem Infiltranten, der einen Penetrationskoeffizienten PK > 50 cm/s aufweist. Kit for infiltration of tooth enamel, with the components: a) a conditioner containing hydrochloric acid; b) an infiltrant having a penetration coefficient PK> 50 cm / s.

Use of an infiltrant for the treatment or prevention of caries lesions

Verwendung eines Infiltranten für ein Mittel zur Behandlung oder Prävention von Kariesläsionen, dadurch gekennzeichnet, dass der Infiltrant einen Penetrationskoeffizienten PK > 50 cm/s aufweist. use an infiltrant for a means of treatment or prevention of carious lesions, characterized in that the infiltrant has a penetration coefficient PK> 50 cm / s.

Infiltrant for the dental application

Infiltrant für die Dentalapplikation, dadurch gekennzeichnet, dass er wenigstens ein niedrigviskoses lichthärtendes Harz enthält und einen Penetrationskoeffizienten PK > 50 cm/s aufweist. infiltrant for the dental application, characterized in that it contains at least one low-viscosity light-curing resin and a penetration coefficient PK> 50 cm / s.

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Modification of the degree of liquid contact with a solid by control of surface and micro-channel capillary geometry

A method of modifying the apparent wettability (the area contacted by a liquid) of solids with liquids by controlling the surface geometry or the capillary geometry. This modification is possible by understanding the geometric relationship between the contact angle and the included angle of surface features. This same geometric relationship can be used to control entrance of a liquid into a capillary and the flow of more than one fluid in distinct streams through a capillary device.

WETTABILITY ASSESSMENT OF FRACTURING PROPPANTS FOR IMPROVING FLUID RECOVERY

Methods, systems, and apparatus for analytical wettability assessment of fracturing proppants for improving fluid recovery are disclosed. Embodiments include determining, for a proppant sample, a first value related to an oil-wet index of the proppant sample. Embodiments further include determining, for the proppant sample, a second value related to a water-wet index of the proppant sample. Embodiments further include determining, for the proppant sample based on the first value and the second value, a third value related to a wettability index of the proppant sample. Embodiments further include determining, based on the third value, a wetting characteristic of the proppant sample. Other embodiments may be described. 1. A method comprising:removing, by a wettability measurement system, moisture from at least one fluid line of the wettability measurement system using a solvent;injecting, by the wettability measurement system, a proppant sample into a vessel of the wettability measurement system, the vessel having a diameter less than a dimension of a wettability measurement instrument of the wettability measurement system;applying, by a flat surface of the wettability measurement system, pressure on a proppant surface of the proppant sample, such that the proppant surface is level;placing, by the wettability measurement system, the vessel into the wettability measurement instrument, such that the vessel is centered with respect to a dropping needle of the wettability measurement system;applying, by the dropping needle of the wettability measurement system, a droplet of deionized water or a hydrocarbon onto the proppant surface; andcapturing, by the wettability measurement system, an image of the droplet contacting the proppant sample to provide a wettability assessment of the proppant sample.2. The method of claim 1 , further comprising determining claim 1 , by the wettability measurement system claim 1 , a contact angle of the droplet and the proppant sample based ...

METHOD, DEVICE, AND SYSTEM FOR TESTING STATIC CONTACT ANGLE OF REAGENT ASPHALT

Disclosed is a method, device, and system for testing the static contact angle of reagent asphalt, the method includes the following steps: acquiring a side image of a stable droplet formed by a test reagent on asphalt surface, and determining the position of a baseline in the side image; cropping the side image to obtain a droplet image, and extracting droplet contour points in the droplet image; screening out effective contour points corresponding to contours of the two sides of the droplet from the droplet contour points; performing cubic polynomial fitting on the effective contour points to obtain curve function of contour curves on both sides; calculating contact angle value from the curve function and the position of the baseline. The beneficial effects of this disclosure are: this disclosure reduces the difficulty of fitting of the droplet contour and thus improves the calculation precision of the contact angle. 1. A method for testing static contact angle of reagent asphalt , comprising the following steps:acquiring a side image of a stable droplet formed by a test reagent on asphalt surface, and determining the position of a baseline in the side image;cropping the side image to obtain a droplet image, and extracting droplet contour points in the droplet image;screening out effective contour points corresponding to contours of the two sides of the droplet from the droplet contour points;performing cubic polynomial fitting on the effective contour points to obtain curve function of contour curves on both sides;calculating contact angle value from the curve function and the position of the baseline.2. The method for testing static contact angle of reagent asphalt according to claim 1 , cropping the side image to obtain a droplet image claim 1 , specifically including the following steps:taking the height direction of the droplet as longitudinal direction, and taking the vertical direction of the height direction of the droplet as the horizontal direction; ...

Method and apparatus for measuring surface configuration

표면장력 측정 장치 및 측정 방법

본 발명은 표면장력 측정 장치 및 측정 방법에 관한 것으로서, 보다 구체적으로는 종래의 광학적 방법을 통해 표면장력을 측정하는 것에 비해 훨씬 간단하고 정확도가 향상된 전기적 방법을 통한 표면장력 측정 장치 및 측정 방법에 관한 것이다.

Device for measuring contact angle and method for measuring contact angle

An apparatus for measuring a contact angle according to the present invention measures a contact angle between a conductive fluid and a non-conductive fluid (20) by using an electrical characteristic. The apparatus includes: a substrate; an electrode and a reference electrode formed on the substrate; a dielectric layer formed on upper parts of the electrode and the reference electrode; an accommodating part to accommodate a conductive fluid to cover the electrode and the reference electrode; and a voltage applying device to apply a voltage between the electrode and the reference electrode and to the conductive fluid, wherein the non-conductive fluid is provided in the accommodating part in such a manner that the non-conductive fluid is disposed on the electrode inside the conductive fluid while interposing the dielectric layer therebetween, and the size of the contact angel is measured by measuring a capacitance according to a geometric shape of the non-conductive fluid.

Method and means for infiltrating enamel lesions

본 발명은 (a) 법랑질 부위를 염산을 함유하는 컨디셔너에 노출시키는 단계; (b) 컨디셔닝된 법랑질 부위를 침투제에 노출시키는 단계; 및 (c) 침투제를 경화시키는 단계를 포함하는, 우식병소의 예방 및/또는 치료를 위한 법랑질 침투 방법에 관한 것이다. 또한, 본 발명은 염산을 포함하는 컨디셔너 및 1종 이상의 저점도 치과용 수지를 포함하는 침투제를 포함하는, 법랑질 침투 방법을 수행하기 위한 키트에 관한 것이다. 대안적으로, 키트는 법랑질 침투 방법을 수행하기 위한 즉시 사용가능한 수단, 예를 들면 컨디셔너 또는 침투제로써 적셔진 전달 패드를 갖는 도포 스트립을 포함한다. 또한, 본 발명은 침투계수를 계산함으로써 침투제를 식별하는 방법, 및 이러한 방법에 의해 식별된, 50 ㎝/s 초과의 침투계수를 갖거나 50 ㎝/s 초과의 침투계수를 갖는 저점도 광-경화성 수지를 포함하는 침투제에 관한 것이다. (A) exposing an enamel site to a conditioner containing hydrochloric acid; (b) exposing the conditioned enamel region to a penetrating agent; And (c) curing the penetrator. ≪ Desc / Clms Page number 2 > The present invention also relates to a kit for performing enamel penetration, comprising a conditioner comprising hydrochloric acid and a penetrating agent comprising at least one low-viscosity dental resin. Alternatively, the kit comprises an applicator strip having an immediate ready means for carrying out the enamel penetration method, for example a conditioner or a transfer pad soaked with a penetrant. The present invention also relates to a method of identifying a penetrant by calculating a penetration coefficient, and a method of identifying a penetrant with a penetration coefficient greater than 50 cm / s or a low viscosity light-curable The present invention relates to a penetrant containing a resin. 우식병소, 법랑질, 침투제, 침투계수, 저점도 광-경화성 수지, 염산 Caries lesion, enamel, penetration agent, penetration coefficient, low viscosity light-curing resin, hydrochloric acid

Rock surface static contact angle and its wetability dynamic change test method

本发明具体涉及一种岩石表面静态接触角的测试方法及利用其的岩石表面润湿性动态变化测试方法。岩石表面静态接触角的测试方法，包括：将岩石片的表面清洗、干燥，备用；采用表面/张力仪，在可升降的样品池中盛装待测液体，夹好备用的岩石片，并悬挂在微量天平下；采用“Interfacial tension”模式进行测试，测试时样品池缓慢上升，直到液面刚好接触岩石片下表面，记录微量天平显示读数，计算岩石片的受力大小(F)；根据岩石片的受力大小(F)推导求解待测液体在岩石表面上的接触角(θ)；

A kind of coating layer material ability of resisting to migration characterizing method based on Contact-angle measurement

本发明公开了一种基于接触角测量的推进剂包覆层材料对于硝酸酯的抗迁移性能表征方法，该方法采用接触角测量仪，以座滴法测量硝酸酯液滴在包覆层材料表面的静态接触角，通过接触角的大小评价包覆层材料对于硝酸酯的抗迁移性能，接触角越大，包覆层材料的抗迁移性能越强。本发明采用固‑液界面润湿性参数表征包覆层抗迁移性能，不仅节约了时间成本，并且最大限度减少了试验过程中硝酸酯的试样量，降低了安全隐患。

Method and means for infiltrating enamel lesions

本发明涉及用于预防和/或治疗龋损伤的浸润釉质的方法，其包括：(a)将釉质区域暴露于含有盐酸的调节剂；(b)将调节的釉质区域暴露于浸润剂；和(c)硬化所述浸润剂。本发明还涉及用于实施浸润釉质方法的试剂盒，其包括含有盐酸的调节剂和含有至少一种低粘性牙科树脂的浸润剂。备选地，所述试剂盒包括用于实施浸润釉质方法的现成的(ready－to－use)工具，例如具有用调节剂或浸润剂浸泡的递送垫的施用带。本发明还涉及通过计算渗透系数确定浸润剂的方法，并涉及由该方法确定的具有渗透系数＞50cm/s或包含具有渗透系数＞50cm/s的低粘性光硬化树脂的浸润剂。

Polarizing plate and display device comprising the same

본 발명은 편광판 및 이를 포함하는 화상표시장치에 관한 것이다. 본 발명의 편광판은 표면보호필름을 점착하여 이송과정 시, 고온 조건 및 고온에서 상온으로 급격한 온도 변화에서도 표면보호필름의 들뜸 현상이 일어나지 않는 것이 특징이다. The present invention relates to a polarizing plate and an image display device including the same. The polarizing plate of the present invention is characterized in that the surface protection film does not float even under high temperature conditions and rapid temperature change from high temperature to room temperature during the transport process by adhering the surface protection film.

For the method measuring the wettability of porous material

用于测定多孔材料的润湿性的方法包括：将多孔材料的样品放置在热量计的样品池内，并使所述样品与润湿流体接触。持续测量进入所述样品池中的热流，根据测量的结果并考虑到所述流体压缩的热效应，对由所述流体填充的孔隙的第一润湿接触角进行计算。然后，将具有所述样品的所述样品池中的压力从初始值开始增大直到所述样品的孔隙完全由所述流体填充，然后将所述压力降低至初始值，并持续测量进入所述样品池中的热流。这能够计算完全由所述流体填充的孔隙的第二润湿接触角以及不含所述流体的孔隙的第三湿润接触角。

Gas liquid film moving distance acquisition methods in a kind of micron capillary tube passage

本发明提供了一种微米毛细管通道中气液相界面移动距离获取方法，本发明利用动态测试装置实现了对微米尺度的毛细导管内的气液两相流动过程的压力或流速的控制，给出了获取相界面和相界面位移的方法，首次实现了在低毛管数、低邦德数状态下的相界面形状获取。第一次采用了基于图像处理方法的相界面形状计算和位移计算，极大提高了数据处理的效率及测量精度。本发明还提出了多种控制两相流的压力控制、电动平台速度控制的算法，提高了实际操作时的灵活性以便满足各种工况的需求。

Device for determining the contact angle of a drop located on a support

A kind of test method of lithium ion battery separator closed pore temperature

本发明公开了锂离子电池隔膜闭孔温度的测试方法，包括以下步骤：(1)剪裁预设大小的隔膜样品；(2)对隔膜样品加热至预热温度；(3)将隔膜样品放置在压水仪中盛装有水的样品池内，逐渐提高测试温度，每间隔15s记录样品池内的隔膜的孔隙率，当隔膜样品的孔隙率为0时，从而获取隔膜样品的孔隙率为0点时作为对应隔膜闭孔温度。本发明中使用水作为测试液，采用压水仪的原理，通过水压及水体积的突变法代替电阻突变法，不需要使用电解液而影响测试结果，重复性和对比性好。

Rock wettability determination method and system based on multi-liquid-bead contact angle measurement and correction

本发明属于润湿性测定领域，具体涉及了一种基于多液珠接触角测量校正的岩石润湿性测定方法及系统，旨在解决现有技术中接触角法为单点测量，代表性差，无法全面描述岩石的润湿性特征的问题。本发明包括：使岩样饱和油、在岩样待测面放置拍摄角度标定圆，并放置于水中渗吸水排油；获取多液珠岩样在拍摄角度下的待测面图像，结合标定圆在拍摄视野中的变形度，计算拍摄角度 ；基于拍摄角度 ，通过接触角校正模型进行接触角测量值 的校正，获得校正后的接触角值 ；根据校正后的接触角值 进行岩样的润湿性判定。本发明多点同步测量的代表性强，可以表征岩心的混合润湿特征，并且渗吸出的油珠，可以与水、岩石表面充分接触，润湿性的表征更准确。

Method and means for infiltration of enamel lesions

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant.; The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Methods and means for infiltrating enamel defects

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Method, means and kit for infiltrating enamel lesions

Method and means for infiltrating enamel lesions

Methods and means for infiltrating enamel defects

Method, means and kit for infiltrating enamel lesions

Method and means for infiltrating enamel lesions

Method of infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Method and means for infiltrating enamel lesions

本发明涉及用于预防和/或治疗龋损伤的浸润釉质的方法，其包括：(a)将釉质区域暴露于含有盐酸的调节剂；(b)将调节的釉质区域暴露于浸润剂；和(c)硬化所述浸润剂。本发明还涉及用于实施浸润釉质方法的试剂盒，其包括含有盐酸的调节剂和含有至少一种低粘性牙科树脂的浸润剂。备选地，所述试剂盒包括用于实施浸润釉质方法的现成的(ready-to-use)工具，例如具有用调节剂或浸润剂浸泡的递送垫的施用带。本发明还涉及通过计算渗透系数确定浸润剂的方法，并涉及由该方法确定的具有渗透系数＞50cm/s或包含具有渗透系数＞50cm/s的低粘性光硬化树脂的浸润剂。

Method, means and kit for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant.; The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Method and means for infiltrating enamel lesions

The present invention refers to a method of infiltrating enamel for the prevention and/or treatment of carious lesions comprising (a) exposing an enamel area to a conditioner comprising hydrochloric acid; (b) exposing the conditioned enamel area to an infiltrant; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out the method of infiltrating enamel, which comprises a conditioner comprising hydrochloric acid and an infiltrant comprising at least one low viscous dental resin. Alternatively, the kit comprises ready-to-use means for carrying out the method of infiltrating enamel, e.g. application strips with delivery pads soaked with conditioner or infiltrant. The present invention also refers to a method for identifying an infiltrant by calculation of the penetration coefficient, and to an infiltrant identified by the method having a penetration coefficient of >50 cm/s or comprising a low viscous light curing resin having a penetration coefficient of >50 cm/s.

Rock wettability determination method and system based on multi-liquid-bead contact angle measurement and correction

本发明属于润湿性测定领域，具体涉及了一种基于多液珠接触角测量校正的岩石润湿性测定方法及系统，旨在解决现有技术中接触角法为单点测量，代表性差，无法全面描述岩石的润湿性特征的问题。本发明包括：使岩样饱和油、在岩样待测面放置拍摄角度标定圆，并放置于水中渗吸水排油；获取多液珠岩样在拍摄角度下的待测面图像，结合标定圆在拍摄视野中的变形度，计算拍摄角度 ；基于拍摄角度 ，通过接触角校正模型进行接触角测量值 的校正，获得校正后的接触角值 ；根据校正后的接触角值 进行岩样的润湿性判定。本发明多点同步测量的代表性强，可以表征岩心的混合润湿特征，并且渗吸出的油珠，可以与水、岩石表面充分接触，润湿性的表征更准确。

Interfacial tension meter

Die Erfindung umfasst ein Verfahren und eine Vorrichtung zur schnellen Bestimmung der Grenz- und Oberflächenspannung von sich nicht mischenden Flüssigkeiten oder zwischen Flüssigkeiten und Vakuum/Gasen. Die bisher dafür bekannten Methoden sind nicht alle für eine schnelle, einfache, genaue und trotzdem automatisierbare Messung gleich geeignet. Will man außerdem verschiedene Flüssigkeiten im Bezug auf ihre Grenzflächenspannungen im Vergleich messen, ist bei jeder der bisherigen Methoden bei Nutzung nur eines Messgeräts die Anzahl der Messungen gleich der Anzahl der unterschiedlichen, zu untersuchenden Flüssigkeiten. Beim neuen Messverfahren wird zur Bestimmung der Grenz- und Oberflächenspannung zwischen Flüssigkeiten und im Vakuum/Gasen ein oder mehrere Gefäße mit den sich nicht vermischenden Phasen gefüllt und daraufhin gekippt. Anhand des Neigungswinkels der sich neu einstellenden Grenzfläche lässt sich für jedes Gefäß die Grenzflächenspannung messen. Mit diesem neuen Messverfahren lassen sich schnelle, vollautomatische Messungen realisieren sowie Differenzmessungen in einem Schritt durchführen. The invention comprises a method and a device for the rapid determination of the interfacial and surface tension of non-mixing liquids or between liquids and vacuum / gases. The methods known up to now for this are not all equally suitable for a quick, simple, precise and nevertheless automatable measurement. If one also wants to measure different liquids in terms of their interfacial tensions in comparison, with each of the previous methods using only one measuring device, the number of measurements is equal to the number of different liquids to be examined. With the new measuring method, one or more vessels are filled with the non-mixing phases and then tilted to determine the interfacial and surface tension between liquids and in vacuum / gases. Using the angle of inclination of the newly established interface, the interface tension can be measured for each vessel. With ...

Beater for device for determining flow properties of powders or granules, has axial bar and stirring blades, where first two stirring blades are axially adjustable, and additional stirring blades are present with fixed axial position

The beater (50) has an axial bar (52) and stirring blades (53.1,53.2,54.1,54.2), where the first two stirring blades are axially adjustable. The additional stirring blades are present with a fixed axial position at the axial bar. The axially adjustable stirring blades are attached at a coupler (54) pushed by the axial bar.

Methyl iodide adsorber, use thereof and method of adsorbing methyl iodide

Es wird ein Methyliodidadsorber bereitgestellt, umfassend einen Zeolithen, der mindestens ein Iodid adsorbierendes Metall oder eine Verbindung davon enthält, wobei der Zeolith ein hydrophober Zeolith ist. Es wird auch eine Verwendung des Adsorbers und ein Verfahren zur Adsorption von Methyliodid angegeben. There is provided a methyl iodide adsorbent comprising a zeolite containing at least one iodide adsorbing metal or a compound thereof, wherein the zeolite is a hydrophobic zeolite. There is also disclosed a use of the adsorbent and a method of adsorbing methyl iodide.

Compositions and methods for evaluation of liquid contact angle properties

The present disclosure relates to methods for evaluating features of objects such as liquid droplets and surfaces. More particularly, the present disclosure relates to methods for measuring features such as the contact angle and the thickness of an object such as a liquid droplet or a fingerprint as well as related compositions for evaluation.

Method and device for measuring and calculating liquid drop contact angle

本发明公开了一种液滴接触角的测量计算方法，包括如下步骤：将质量为M、密度为ρ的液滴滴在水平放置的透明的载片上；获取所述液滴在所述载片上的正投影图像，并测量所述正投影图像的半径，记为r；比较M与 的大小；若 则通过等式 计算出H的数值，其中，V所述液滴的体积，H为所述液滴的高度，计算出所述液滴与所述载片之间的接触角 若 通过等式 以及R＝r计算出H的数值，其中，V为所述液滴的体积，H为所述液滴的高度，R为所述液滴所在球体的半径，计算出所述液滴与所述载片之间的接触角 所述测量计算方法省去繁杂的成本高昂的水平调节平台，最重要的是，在液滴较小或是液滴的反射率低的情况下，也能得出准确可靠的测量计算结果。

Apparatus and method for measuring contact angle

PURPOSE: A contact angle measuring device and a method thereof are provided to obtain images of the top surface and the lateral surface of a droplet at the same time and to measure a contact angle of the droplet based on the height of the droplet measured by using the images of the lateral surface of the droplet and the diameter of the droplet measured by using the images of the top surface of the droplet. CONSTITUTION: A contact angle measuring device includes a first optical unit (10), a second optical unit (20), and an image unit (30). The first optical unit provides images of the top surface of a target droplet. The second optical unit provides images of the lateral surface of the target objet. The image unit acquires the images of the upper and lateral surfaces at the same time. The first optical unit or the second optical unit includes one or more reflection units changing a transmission direction of the images so that the images of the upper and lateral surfaces are supplied to the image unit at the same time. [Reference numerals] (10) First optical unit; (20) Second optical unit; (30) Image unit; (40) Processing unit

Method and apparatus for evaluating liquid repellency of liquid repellent film provided on inner wall of pore

Method for measuring long-lasting time of cosmetic composition

본 발명은 접촉각 측정을 통하여 화장료의 지속성을 측정하는 방법에 관한 것으로서, 보다 상세하게는 접촉각 측정 기기를 사용하여 화장료가 도포된 표면 위에 물 또는 피지 성분을 일정량 떨어뜨린 후 접촉각을 측정하여 이를 초기 내수성(내유성)으로 할 수 있으며, 일정한 시간 간격에 따라 반복적으로 측정하여 이를 내수성(내유성) 유지 시간으로 하여 지속성을 객관적으로 측정할 수 있는 방법을 제공한다. More particularly, the present invention relates to a method for measuring the persistence of a cosmetic composition through contact angle measurement, and more particularly, to a method for measuring the contact angle by measuring a contact angle after dropping a certain amount of water or sebum component on a cosmetic- (Oil resistance), and it provides a method of objectively measuring the sustainability by measuring it repeatedly at a constant time interval and using it as a water resistance (oil resistance) maintenance time.

Testing wetting characteristics

The kit has a cover pale, and a carrier comprising 12 circular keyed segments, where each of the segments has a diameter of 2 to 3 centimeters. The carrier is formed of a material selected from a group of thermoplastics such as polystyrene and polyvinyl chloride, and has surface profiles with a track depth and a track breadth of 2 to 10 micrometers in center. The surface profiles simulate wetting characteristics of natural surfaces, and are produced by mechanical wrinkling e.g. abrasive paper and/or contact brush. Independent claims are also included for the following: (1) a method for producing a test kit (2) a method for determining wetting characteristics of a fluid.

Wettability testing device under action of ultrasonic thermoelectric composite field

一种超声热电复合场作用下的润湿性测试装置，包括支架1、机械泵2、分子泵3、真空管道4、阀门5、真空炉体组件6、上端盖7、超声波组件8、端盖提升组件9、下端盖10、样品台组件11。超声波发生器8a通过波纹管组件1与上端盖7连接保持真空腔室的真空度，由升降平台1带动上下移动与样品接触或者分离。弱电馈入电极6e通过球铰链安装在炉体外壳6g的法兰上，与放置在可移动的放料平台11a上的样品片共同构成弱电测试的两极。图像采集和处理部分采用CCD数码相机或高速摄像机与光源分别放置在炉体前后并且和炉体的石英玻璃观察窗，屏蔽层上的通孔和加热通孔的对称轴线处于同一水平上。

Device and method for quantitatively measuring hysteresis force between solid surface and bubbles or liquid drops

本发明属于物理化学测量仪器领域，具体涉及一种定量测定固体表面与气泡或液滴之间迟滞力的装置及方法。该装置包括固定式样品台、摄像机、光源、进样器，套筒致动装置，推杆致动装置。其中，所述进样器呈注射器形式，具有套筒、与套筒相连通的针头和插入套筒中的活塞推杆；所述针头为弯曲针头或直针头；其中，所述摄像机的镜头中心、所述光源中心、所述样品台上放置样品的位置中心设置在同一直线上。本发明首次计算出固体表面与气泡之间的迟滞力，解决了以往实验操作难以精确定量测量的问题。本装置操作简单方便，准确度高，并且不需要耦合到更多的软件仪器上，更加具有普适性，易于推广。

Method and device for determining self-absorption amount of rock

本发明公开了一种确定岩石自吸量的方法和装置，属于石油工程领域。本发明实施例提供的一种确定岩石自吸量的方法，获取待测量的目标岩石的岩心的裂缝条数、裂缝总长度、孔隙度、孔隙形状因子和渗透率；获取充满系数、接触角，以及压裂液的密度、粘度、表面张力。基于裂缝条数、裂缝总长度、孔隙度、孔隙形状因子、渗透率、充满系数、接触角、密度、粘度和表面张力，确定第一目标自吸深度和第二目标自吸深度。基于第一目标自吸深度、第二目标自吸深度确定岩心的总自吸量。该方法不仅考虑到页岩的孔隙对压裂液的吸收，还考虑到页岩的裂缝对压裂液的吸收，提高了计算的返排率的准确性，为计算返排率提供了依据，指导优化返排制度。

measuring system

Inspection device for production of super-hydrophobic material

本发明公开了一种用于超疏水材料生产用检验装置，所述底座顶部的两侧分别固定有第一固定架和第二固定架，且第一固定架和第二固定架之间下部分别与导向杆的两端相连接，同时导向杆关于底座的中轴线呈对称式设置有两个，所述活动台的底部分别通过滑套与导向杆相连接，且滑套关于活动台的中轴线呈对称式设置有两个，同时滑套与导向杆的连接方式均为滑动连接，通过导向杆配合滑套确保活动台整体在进行移动时保持稳定，降低移动时对测验基板表面的液滴所造成的影响，且装置整体便于根据需求对测验基板和介质仓进行更换，配合高速镜头或位移传感器便于根据需求快速针对不同的检验需求进行转换，提高了实用性。

Methods of diagnosing diseases of mucosal surfaces

Provided are methods for assessment of surface rugosity of a layer of live cells using tools that determine contact angle and contact angle hysteresis.

Verifying soldering results, comprises placing a contact element on a surface of a carrier, melting a soldering material, and characterizing the soldering result under the formation of quality results after completing the soldering process

Die Erfindung bezieht sich auf ein Verfahren zum Prüfen eines Lötergebnisses, bei dem ein Kontaktelement (20, 30, 220, 230) auf einer Oberfläche (70) eines Trägers (40) aufgesetzt wird, Lotmaterial (96) geschmolzen wird und nach Abschluss des Lötvorganges das Lötergebnis unter Bildung eines Qualitätsergebnisses charakterisiert wird. Erfindungsgemäß ist vorgesehen, dass der Träger zumindest einen nichtbenetzenden Trägeroberflächenabschnitt aufweist und das Kontaktelement auf dem nichtbenetzenden Trägeroberflächenabschnitt des Trägers aufgesetzt wird, nach Abschluss des Lötprozesses das Kontaktelement von dem Trägeroberflächenabschnitt abgenommen wird und das an dem Kontaktelement verbliebene Lotmaterial unter Bildung des Qualitätsergebnisses charakterisiert wird. Vorteilhaft bei diesem Verfahren ist, dass sich dieses unmittelbar in reale Fertigungsprozesse integrieren lässt. Da anstelle eines benetzenden Trägers ein Träger mit einer nichtbenetzenden Trägeroberfläche eingesetzt wird, tritt während des Lötvorganges weder eine Benetzung des Trägers noch ein Verlöten der Kontaktelemente auf dem Träger auf; nach Abschluss des Lötvorganges können die Kontaktelemente somit ohne weiteres wieder von dem Träger abgelöst und inspiziert werden.

Apparatus for measuring contact angle

본 발명은 접촉각 측정 장치에 관한 것으로, 액적을 토출시키는 잉크젯 헤드; 상기 액적이 탄착되는 기판; 상기 기판을 이동시키는 기판 이동부; 상기 기판 상에 존재하는 상기 액적을 촬영하여 액적의 이미지를 획득하는 이미지 획득부; 상기 획득부에서 획득한 액적의 이미지를 분석하여 이미지 값이 급변하는 지점의 좌표를 얻는 이미지 처리부; 및 상기 좌표를 이용하여 액적의 접촉각을 산출하는 접촉각 산출부;를 포함하여, 접촉각을 측정하고자 하는 액적의 크기를 미세하고 정확하게 조절할 수 있고 액적의 프로파일 변화를 알 수 있다. The present invention relates to a contact angle measuring device, comprising: an ink jet head for discharging droplets; A substrate on which the droplets are bound; A substrate moving unit which moves the substrate; An image acquisition unit which acquires an image of the droplet by photographing the droplet existing on the substrate; An image processor which analyzes an image of a droplet acquired by the acquirer and obtains coordinates of a point at which an image value rapidly changes; And a contact angle calculator configured to calculate a contact angle of the droplet using the coordinates. The size of the droplet to measure the contact angle can be finely and accurately adjusted and the profile of the droplet can be seen.

Rock wettability measuring device and method under a kind of gas with various atmosphere

本发明公开了一种不同气体氛围下的岩石润湿性测量装置及方法，本发明的岩石润湿性测量装置，其通过设置气源及压力控制部分、可视釜样品仓、储水罐、气压滴落组件、图象采集及处理组件，气源及压力控制部分通过调压阀与所述储水罐连通，储水罐通过所述气压滴落组件与可视釜样品仓连通，所述图象采集及处理组件设置在所述可视釜样品仓的一侧，用于对可视釜样品仓内的情况进行图像拍摄并对拍摄的图像进行数据处理，所述可视釜样品仓内设置有样品，使用本发明所述的测定高润湿性的装置和方法，可以实现自动测定不同压力下具有吸附膨胀特性岩石的润湿性。

Measurement system

测定系统(1)具有：检测部(20)，其对与壁部(41)接触的流体(42)中含有的气泡(43)相对于壁部(41)的接触状态进行检测；以及控制部(10)，其基于气泡(43)相对于壁部(41)的接触状态而获取壁部(41)、流体(42)或者气泡(43)中的至少1者的状态。

Methyl iodide adsorber, use of the same, and method for adsorption of methyl iodide

提供一种甲基碘吸附剂，其包含含有至少一种吸附碘化物的金属或其化合物的沸石，其中所述沸石为疏水沸石。还说明了所述吸附剂的用途和用于吸附甲基碘的方法。

Method to evaluate cylinder cleanliness

A method of gas cylinder interior cleanliness validation, including placing a volume of liquid on an interior surface of a component of a gas cylinder, measuring a contact angle of the liquid on the interior surface, and estimating from the contact angle the cleanliness of the interior surface with respect to at least one contaminant.