CN1111355A - 电容测量装置 - Google Patents

电容测量装置 Download PDF

Info

Publication number
CN1111355A
CN1111355A CN94115397A CN94115397A CN1111355A CN 1111355 A CN1111355 A CN 1111355A CN 94115397 A CN94115397 A CN 94115397A CN 94115397 A CN94115397 A CN 94115397A CN 1111355 A CN1111355 A CN 1111355A
Authority
CN
China
Prior art keywords
electric capacity
charging
predetermined voltage
charged
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN94115397A
Other languages
English (en)
Chinese (zh)
Inventor
格瑞·G·山德斯
布瑞恩·J·古德威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Penberthy Inc
Original Assignee
Penberthy Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Penberthy Inc filed Critical Penberthy Inc
Publication of CN1111355A publication Critical patent/CN1111355A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Paper (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Measuring Fluid Pressure (AREA)
CN94115397A 1993-09-17 1994-09-16 电容测量装置 Pending CN1111355A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/123,316 US5461321A (en) 1993-09-17 1993-09-17 Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle
US123,316 1993-09-17

Publications (1)

Publication Number Publication Date
CN1111355A true CN1111355A (zh) 1995-11-08

Family

ID=22407936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94115397A Pending CN1111355A (zh) 1993-09-17 1994-09-16 电容测量装置

Country Status (10)

Country Link
US (2) US5461321A (enExample)
EP (1) EP0644432B1 (enExample)
KR (1) KR950009271A (enExample)
CN (1) CN1111355A (enExample)
AT (1) ATE212726T1 (enExample)
AU (1) AU677087B2 (enExample)
CA (1) CA2132225C (enExample)
DE (1) DE69429755T2 (enExample)
ES (1) ES2171426T3 (enExample)
TW (1) TW247350B (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7145350B2 (en) 2003-07-22 2006-12-05 Vega Grieshaber Kg Process and a circuit arrangement for evaluating a measuring capacitance
CN100455998C (zh) * 2003-02-07 2009-01-28 Hybres电子创新与应用公司 检测介电常数高于空气的导电或介电环境的电子方法、系统
CN101799496A (zh) * 2010-03-09 2010-08-11 臧佳菁 电容测量装置及其方法
CN101858941A (zh) * 2010-03-30 2010-10-13 矽创电子股份有限公司 具抗电磁干扰能力的电容感测电路
CN108627704A (zh) * 2017-03-01 2018-10-09 英飞凌科技股份有限公司 用于测试电容的方法和装置
CN115267397A (zh) * 2022-08-03 2022-11-01 河北工业大学 基于辅助放电网络的铝电解电容器寿命在线监测方法

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5585733A (en) * 1992-09-10 1996-12-17 David Sarnoff Research Center Capacitive sensor and method of measuring changes in capacitance
US6125696A (en) * 1993-10-27 2000-10-03 Kdi Precision Products, Inc. Digital liquid level sensing apparatus
JP3351171B2 (ja) * 1995-04-13 2002-11-25 トヨタ自動車株式会社 コンデンサ容量診断回路
US5646539A (en) * 1995-08-31 1997-07-08 Caterpillar Inc. Multi-purpose capacitive sensor
GB9519006D0 (en) * 1995-09-16 1995-11-15 Rolls Royce & Ass Capacitance probe
US5869973A (en) * 1995-10-26 1999-02-09 Nosov; Eugene I. Time-domain dielectric spectroscopy method and apparatus
US5730165A (en) * 1995-12-26 1998-03-24 Philipp; Harald Time domain capacitive field detector
US5844491A (en) * 1997-04-30 1998-12-01 Endress + Hauser Gmbh + Co. Apparatus for establishing and/or monitoring a predetermined filling level in a container
US5945831A (en) * 1997-06-10 1999-08-31 Sargent; John S. Volume charge density measuring system
US5963043A (en) * 1997-09-17 1999-10-05 International Business Machines Corporation Method and apparatus for characterized parasitic capacitance between integrated-circuit interconnects
US6984900B1 (en) * 1998-10-09 2006-01-10 Azoteq (Pty) Ltd. Intelligent electrical switch
US6249089B1 (en) 1998-10-09 2001-06-19 Frederick Bruwer Intelligent electrical device comprising microchip
FR2785046B1 (fr) * 1998-10-23 2001-01-26 Claude Launay Dispositif de mesure reposant sur la mesure indirecte de la permittivite
US6186001B1 (en) * 1999-06-18 2001-02-13 William J. Baker Sensor for measuring content levels in containers
FR2795816B1 (fr) * 1999-07-02 2001-09-28 Roxer Capteur de niveau
NL1012743C2 (nl) * 1999-07-29 2001-01-30 Enraf Bv Capacitieve sensor voor niveaumeting van water in een olietank.
WO2001009625A1 (fr) * 1999-08-03 2001-02-08 Pavlenko Vladimir Alexandrovic Detecteur capacitif
JP4717312B2 (ja) 2000-02-29 2011-07-06 ジェン−プローブ・インコーポレイテッド 流体搬送プローブ
EP1158303A1 (en) * 2000-05-25 2001-11-28 Semiconductor Ideas to The Market (ItoM) BV A circuit for measuring absolute spread in capacitors implemented in planary technology
US6522154B2 (en) 2001-03-16 2003-02-18 International Business Machines Corporation Oxide tracking voltage reference
DE60201751T2 (de) * 2001-03-16 2006-02-09 Eilersen, Nils Age Juul Kapazitätsmessschaltung
US6441592B1 (en) 2001-04-13 2002-08-27 Visteon Global Technologies, Inc. Method for measurement of backup power supply capacitance in restraint control module
US6661410B2 (en) 2001-09-07 2003-12-09 Microsoft Corporation Capacitive sensing and data input device power management
US6703599B1 (en) * 2002-01-30 2004-03-09 Microsoft Corporation Proximity sensor with adaptive threshold
US6954867B2 (en) * 2002-07-26 2005-10-11 Microsoft Corporation Capacitive sensing employing a repeatable offset charge
DE10342472B4 (de) * 2003-09-15 2008-01-31 Infineon Technologies Ag Schaltungsanordnung und Verfahren zum Testen eines Kapazitätsfeldes in einer integrierten Schaltung
JP4023684B2 (ja) * 2004-02-13 2007-12-19 ローム株式会社 周波数電流変換回路、及びそれを備えるイコライザ、光ディスク装置
EP1677084A1 (fr) 2004-12-22 2006-07-05 Roxer Industries S.A. Capteur de niveau d'un liquide et méthode d'estimation.
WO2006133357A2 (en) 2005-06-08 2006-12-14 Lumenite Control Technology Inc. Self-calibrating liquid level transmitter
US7312616B2 (en) 2006-01-20 2007-12-25 Cypress Semiconductor Corporation Successive approximate capacitance measurement circuit
PL1862806T3 (pl) * 2006-06-01 2018-01-31 Electrolux Home Products Corp Nv Sposób i urządzenie do pomiaru pojemności elektrycznej elementu pojemnościowego
US7282927B1 (en) * 2006-06-21 2007-10-16 Eastman Kodak Company Use of a configurable electronic controller for capacitance measurements and cable break detection
TW200816551A (en) * 2006-09-18 2008-04-01 Syspotek Corp Fluid measuring device
US8547114B2 (en) 2006-11-14 2013-10-01 Cypress Semiconductor Corporation Capacitance to code converter with sigma-delta modulator
DE102007007407A1 (de) * 2007-02-12 2008-08-21 Krohne S.A. Füllstandsschalter und Verfahren zur Erfassung des Füllzustands eines in einem Behälter vorgesehenen Mediums
US9500686B1 (en) 2007-06-29 2016-11-22 Cypress Semiconductor Corporation Capacitance measurement system and methods
US7804307B1 (en) * 2007-06-29 2010-09-28 Cypress Semiconductor Corporation Capacitance measurement systems and methods
US8089289B1 (en) 2007-07-03 2012-01-03 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
US8570053B1 (en) 2007-07-03 2013-10-29 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
US8169238B1 (en) 2007-07-03 2012-05-01 Cypress Semiconductor Corporation Capacitance to frequency converter
US7667468B1 (en) * 2007-07-24 2010-02-23 Cypress Semiconductor Corporation Capacitive sensor with ratiometric voltage references
US7830158B2 (en) * 2007-12-28 2010-11-09 3M Innovative Properties Company Time-sloped capacitance measuring circuits and methods
US8525798B2 (en) 2008-01-28 2013-09-03 Cypress Semiconductor Corporation Touch sensing
US8358142B2 (en) 2008-02-27 2013-01-22 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US8319505B1 (en) 2008-10-24 2012-11-27 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US9104273B1 (en) 2008-02-29 2015-08-11 Cypress Semiconductor Corporation Multi-touch sensing method
US7804599B2 (en) * 2008-07-24 2010-09-28 MGM Instruments, Inc. Fluid volume verification system
US8321174B1 (en) 2008-09-26 2012-11-27 Cypress Semiconductor Corporation System and method to measure capacitance of capacitive sensor array
WO2010063026A1 (en) * 2008-11-28 2010-06-03 Ametek, Inc. Apparatus for high precision measurement of varied surface and material levels
US8225654B2 (en) * 2009-07-01 2012-07-24 Tecan Trading Ag Self-compensating capacitive liquid level detector
US8723827B2 (en) 2009-07-28 2014-05-13 Cypress Semiconductor Corporation Predictive touch surface scanning
TWI385394B (en) * 2009-09-18 2013-02-11 Method of capacitance measurement for capacitive touch panel
DE102012201596A1 (de) * 2012-02-03 2013-08-08 Robert Bosch Gmbh Empfangsanordnung für ein Steuergerät in einem Fahrzeug und Verfahren zum Erzeugen eines Synchronisationspulses
US9261395B2 (en) * 2012-02-13 2016-02-16 Goodrich Corporation Liquid level sensing system
TWI448696B (zh) * 2012-07-05 2014-08-11 Chroma Ate Inc 訊號量測裝置
EP2741087B1 (en) * 2012-12-04 2019-10-02 F. Hoffmann-La Roche AG Method and system for fluid surface detection
EP2757352B1 (fr) * 2013-01-17 2015-11-18 EM Microelectronic-Marin SA Système de contrôle et méthode de gestion de capteur
FR3002643B1 (fr) * 2013-02-26 2015-04-03 Continental Automotive France Procede de recherche de variation electrique d'un capteur capacitif de vehicule automobile
DE102015008485A1 (de) * 2015-07-01 2017-01-05 Leopold Kostal Gmbh & Co. Kg Verfahren zum Messen eines Kapazitätswertes
US9874470B2 (en) * 2016-01-12 2018-01-23 Tank Vision, Inc. Fuel tank level monitoring system
TWI621984B (zh) * 2016-12-02 2018-04-21 瑞鼎科技股份有限公司 電容値量測電路及電容値量測方法
US11531424B2 (en) * 2017-09-07 2022-12-20 Cypress Semiconductor Corporation Nano-power capacitance-to-digital converter
DE102017127145B4 (de) * 2017-11-17 2021-03-04 BEDIA Motorentechnik GmbH & Co. KG Vorrichtung und Verfahren zur kapazitiven Messung eines Füllstands eines Füllmediums
PL3752799T3 (pl) 2018-02-13 2025-08-04 Renk America Llc Wskaźnik prętowy i elektroniczny czujnik poziomu płynu
US10693367B1 (en) * 2019-02-19 2020-06-23 Rolls-Royce North American Technologies, Inc. Pre-charging circuit for power converters
RU2719790C1 (ru) * 2019-08-12 2020-04-23 федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" Микроконтроллерное устройство измерения емкости для систем контроля и управления
CN111076790B (zh) * 2019-12-30 2021-06-22 上海科勒电子科技有限公司 一种液位监测方法、存储介质和电子设备
WO2025233419A1 (en) * 2024-05-09 2025-11-13 Koninklijke Philips N.V. Capacitor voltage compensation in a defibrillator

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778708A (en) * 1973-04-30 1973-12-11 Gte Automatic Electric Lab Inc Method of and an apparatus for measuring an electrical characteristic of a granular material
US3993947A (en) * 1974-09-19 1976-11-23 Drexelbrook Controls, Inc. Admittance measuring system for monitoring the condition of materials
FR2447555A1 (fr) * 1979-01-26 1980-08-22 Jaeger Circuit de mesure de capacite, notamment pour une jauge capacitive de niveau de liquide
US4499766A (en) * 1982-08-25 1985-02-19 Berwind Corporation Capacitance-type material level indicator
US4558274A (en) * 1983-09-14 1985-12-10 Johnson Service Company Apparatus and method determining the value of a capacitance
US4939519A (en) * 1986-02-03 1990-07-03 Thaler Corporation Apparatus for method and a high precision analog-to-digital converter
EP0258517B1 (de) * 1986-08-01 1992-04-08 Siemens Aktiengesellschaft Verfahren und Einrichtung zur Erkennung der Polarität gepolter Kondensatoren
US4788488A (en) * 1986-10-14 1988-11-29 Drexelbrook Controls, Inc. Continuous condition sensing system
US5045797A (en) * 1986-10-14 1991-09-03 Drexelbrook Controls, Inc. Continuous condition sensing system determining liquid level by admittance measurement
FR2605731A1 (fr) * 1986-10-27 1988-04-29 Renault Procede de mesure du niveau d'un liquide dans un reservoir et dispositif pour sa mise en oeuvre
EP0288215B1 (en) * 1987-04-24 1993-03-10 Simmonds Precision Products Inc. Determination of electrical capacitance and resistance
US5014011A (en) * 1988-05-31 1991-05-07 Ford Motor Company Capacitance measuring apparatus with means for nulling the resistive component
US4942401A (en) * 1989-02-24 1990-07-17 John Fluke Mfg. Co., Inc. Analog to digital conversion with charge balanced voltage to frequency converter having polarity responsive offset
US5274334A (en) * 1989-12-18 1993-12-28 Honeywell Inc. Calibrated physical parameter value measurement system
US5059908A (en) * 1990-05-31 1991-10-22 Capital Controls Company, Inc. Amperimetric measurement with cell electrode deplating
US5294889A (en) * 1992-03-27 1994-03-15 Tandy Corporation Battery operated capacitance measurement circuit
US5446444A (en) * 1993-12-17 1995-08-29 Robertshaw Controls Company Capacitive threshold detector test circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455998C (zh) * 2003-02-07 2009-01-28 Hybres电子创新与应用公司 检测介电常数高于空气的导电或介电环境的电子方法、系统
US7145350B2 (en) 2003-07-22 2006-12-05 Vega Grieshaber Kg Process and a circuit arrangement for evaluating a measuring capacitance
CN101799496A (zh) * 2010-03-09 2010-08-11 臧佳菁 电容测量装置及其方法
CN101799496B (zh) * 2010-03-09 2013-03-20 臧佳菁 电容测量装置及其方法
CN101858941A (zh) * 2010-03-30 2010-10-13 矽创电子股份有限公司 具抗电磁干扰能力的电容感测电路
CN108627704A (zh) * 2017-03-01 2018-10-09 英飞凌科技股份有限公司 用于测试电容的方法和装置
CN115267397A (zh) * 2022-08-03 2022-11-01 河北工业大学 基于辅助放电网络的铝电解电容器寿命在线监测方法
CN115267397B (zh) * 2022-08-03 2025-04-18 河北工业大学 基于辅助放电网络的铝电解电容器寿命在线监测方法

Also Published As

Publication number Publication date
US5461321A (en) 1995-10-24
ATE212726T1 (de) 2002-02-15
DE69429755D1 (de) 2002-03-14
DE69429755T2 (de) 2002-09-26
CA2132225C (en) 1997-12-23
EP0644432A2 (en) 1995-03-22
EP0644432A3 (en) 1996-04-17
AU677087B2 (en) 1997-04-10
AU7304294A (en) 1995-03-30
EP0644432B1 (en) 2002-01-30
KR950009271A (ko) 1995-04-21
US5554937A (en) 1996-09-10
CA2132225A1 (en) 1995-03-18
ES2171426T3 (es) 2002-09-16
TW247350B (enExample) 1995-05-11

Similar Documents

Publication Publication Date Title
CN1111355A (zh) 电容测量装置
US7724000B2 (en) Method of automatically testing an electronic circuit with a capacitive sensor and electronic circuit for the implementation of the same
US7983853B2 (en) EIT data processing system and method
CN112924745A (zh) 纳米孔基因测序微电流检测装置
EP3404422A1 (en) Excitation circuit for a capacitive transducer, system including such an excitation circuit and method for measuring acceleration with such a system
CN109342827A (zh) 一种通过电容交流充放电测量电容值的电路及方法
JPS60178368A (ja) 測定電流をこれに比例するパルスレ−トに変換する方法および装置
Hahnel et al. An AC-based capacitance measuring circuit for tomography systems and its silicon chip design
Watanabe et al. A switched-capacitor digital capacitance bridge
JP2000221054A (ja) 容量式物理量検出装置
CN113376441B (zh) 一种薄膜电容器寄生电感参数的测量系统和方法
JPS5840125B2 (ja) セイデンヨウリヨウ − チヨクリユウデンアツヘンカンソウチ
RU2135987C1 (ru) Кулонометрическая установка с контролируемым потенциалом
Sreenath et al. A novel closed-loop SC capacitance-to-frequency converter with high linearity
SU1168874A1 (ru) Емкостный преобразователь
RU2028697C1 (ru) Способ определения параметров полупроводниковых материалов и гетероструктур
SU1323985A1 (ru) Цифровой измеритель коэффициента передачи четырехполюсника
JPS6034703B2 (ja) 静電容量―直流信号変換装置
CN2692681Y (zh) 一种电阻的交流方式测量电路
RU2103696C1 (ru) Способ измерения количества электрической энергии постоянного тока
SU798631A1 (ru) Способ измерени составл ющихКОМплЕКСНыХ СОпРОТиВлЕНий
Rath et al. Isolating Interface for Water Quality Sensors Based on Flying Capacitor Principle
SU1267290A1 (ru) Преобразователь параметров кондуктометрического датчика
SU684733A1 (ru) Преобразователь величины емкости конденсатора во временной интервал напр жени
SU828097A1 (ru) Интегрирующий преобразователь разбалансаТЕНзОМОСТА B чАСТОТу СлЕдОВАНи иМпульСОВ

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication