NO20032015D0 - Anordning og fremgangsmåte for sensorkapasitansdeteksjon - Google Patents

Anordning og fremgangsmåte for sensorkapasitansdeteksjon

Info

Publication number
NO20032015D0
NO20032015D0 NO20032015A NO20032015A NO20032015D0 NO 20032015 D0 NO20032015 D0 NO 20032015D0 NO 20032015 A NO20032015 A NO 20032015A NO 20032015 A NO20032015 A NO 20032015A NO 20032015 D0 NO20032015 D0 NO 20032015D0
Authority
NO
Norway
Prior art keywords
signal line
capacitor
resistance
electric potential
feedback circuit
Prior art date
Application number
NO20032015A
Other languages
English (en)
Other versions
NO20032015L (no
Inventor
Masami Yakabe
Original Assignee
Sumitomo Metal Ind
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 Sumitomo Metal Ind filed Critical Sumitomo Metal Ind
Publication of NO20032015D0 publication Critical patent/NO20032015D0/no
Publication of NO20032015L publication Critical patent/NO20032015L/no

Links

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
    • G01R27/2605—Measuring capacitance
    • 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
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/228—Circuits therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Signal Processing (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Networks Using Active Elements (AREA)
  • Air Bags (AREA)
  • Measuring Fluid Pressure (AREA)
NO20032015A 2001-09-06 2003-05-05 Anordning og fremgangsmate for sensorkapasitansdeteksjon NO20032015L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001270800 2001-09-06
PCT/JP2002/009083 WO2003023417A1 (en) 2001-09-06 2002-09-06 Sensor capacity sensing apparatus and sensor capacity sensing method

Publications (2)

Publication Number Publication Date
NO20032015D0 true NO20032015D0 (no) 2003-05-05
NO20032015L NO20032015L (no) 2003-07-03

Family

ID=19096408

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20032015A NO20032015L (no) 2001-09-06 2003-05-05 Anordning og fremgangsmate for sensorkapasitansdeteksjon

Country Status (9)

Country Link
US (1) US7088112B2 (no)
EP (1) EP1424562B1 (no)
KR (1) KR100654472B1 (no)
CN (1) CN1271416C (no)
AT (1) ATE399327T1 (no)
DE (1) DE60227266D1 (no)
NO (1) NO20032015L (no)
TW (1) TWI221194B (no)
WO (1) WO2003023417A1 (no)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1523702B1 (en) * 2002-07-16 2010-12-01 DSP Group Switzerland AG Capacitive feedback circuit
DE102004018578B4 (de) * 2004-04-16 2007-02-22 Siemens Ag Verfahren und Vorrichtung zur Erfassung eines Verschmutzungsgrades eines betriebenen Umrichtergerätes
EP1790988B1 (en) * 2005-11-29 2017-01-18 STMicroelectronics Srl Detection circuit using a differential capacitive sensor with input-common-mode control in a sense interface
CN100593767C (zh) 2006-06-30 2010-03-10 深圳市大族激光科技股份有限公司 电容传感器的控制方法
FI121979B (fi) 2008-03-26 2011-06-30 Elsi Technologies Oy Sovitinkomponentti mittausjärjestelmään
EP2163887B1 (de) * 2008-09-15 2014-12-24 Ulrich Kuipers Verfahren und Schaltungsanordnung zur Messung physikalischer Grössen in Fluiden sowie deren Verwendung
US7986153B2 (en) * 2009-03-02 2011-07-26 Atmel Corporation Method and apparatus for sensing
US20110273189A1 (en) * 2010-05-06 2011-11-10 Steve Gerber Sensing apparatus for and associated methods
CN103649688B (zh) * 2011-06-30 2017-02-22 迈普尔平版印刷Ip有限公司 用于电容式测量***的有源屏蔽
KR101497586B1 (ko) * 2012-07-05 2015-03-02 호쿠토 덴시 고교 가부시키가이샤 정전용량형의 수분 검출 장치
CN105277786A (zh) * 2014-07-25 2016-01-27 南京瀚宇彩欣科技有限责任公司 传感器的最大阻抗检测方法及检测装置
FR3072176B1 (fr) * 2017-10-10 2022-03-04 Fogale Nanotech Dispositif de mesure d'impedance
CN111771110B (zh) * 2018-03-30 2022-06-24 松下知识产权经营株式会社 静电电容检测装置
CN112394226A (zh) * 2019-08-16 2021-02-23 Oppo广东移动通信有限公司 信号检测电路和电子设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007426A1 (de) 1980-02-28 1981-09-03 Ewald Max Christian Dipl.-Phys. 6000 Frankfurt Hennig Schaltungsanordnung mit einem kondensator im rueckkopplungszweig eines operationsverstaerkers
US5723980A (en) 1995-06-07 1998-03-03 Aerogage Corporation Clearance measurement system
JPH09280806A (ja) * 1996-04-09 1997-10-31 Nissan Motor Co Ltd 静電容量式変位計
US5744968A (en) * 1996-04-30 1998-04-28 Motorola Inc. Ratiometric circuit
DE19651402A1 (de) * 1996-12-11 1998-06-18 T E M Tech Entwicklung Und Man Apparat zur physikalischen Aufbereitung von Luft, insbesondere von Atemluft
CN1255975A (zh) * 1998-01-23 2000-06-07 住友金属工业株式会社 阻抗－电压转换器
TW526327B (en) * 1998-02-19 2003-04-01 Sumitomo Metal Ind Detection apparatus and method of physical variable
JP4124867B2 (ja) * 1998-07-14 2008-07-23 松下電器産業株式会社 変換装置
JP3501401B2 (ja) 2000-03-07 2004-03-02 住友金属工業株式会社 インピーダンス検出回路、インピーダンス検出装置、及びインピーダンス検出方法
TW546480B (en) * 2000-03-07 2003-08-11 Sumitomo Metal Ind Circuit, apparatus and method for inspecting impedance
JP3454426B2 (ja) 2000-07-10 2003-10-06 住友金属工業株式会社 インピーダンス検出回路及びインピーダンス検出方法
JP3501398B2 (ja) * 2000-07-10 2004-03-02 住友金属工業株式会社 インピーダンス検出回路及びインピーダンス検出方法
JP2002157671A (ja) 2000-11-16 2002-05-31 Sumitomo Metal Ind Ltd センシングシステム

Also Published As

Publication number Publication date
CN1551988A (zh) 2004-12-01
CN1271416C (zh) 2006-08-23
TWI221194B (en) 2004-09-21
WO2003023417A1 (en) 2003-03-20
KR20040053121A (ko) 2004-06-23
DE60227266D1 (de) 2008-08-07
NO20032015L (no) 2003-07-03
EP1424562B1 (en) 2008-06-25
KR100654472B1 (ko) 2006-12-05
EP1424562A4 (en) 2005-03-02
US7088112B2 (en) 2006-08-08
ATE399327T1 (de) 2008-07-15
EP1424562A1 (en) 2004-06-02
US20050036271A1 (en) 2005-02-17

Similar Documents

Publication Publication Date Title
AU4104301A (en) Impedance detector circuit, impedance detector and method of impedance detection
NO20032015D0 (no) Anordning og fremgangsmåte for sensorkapasitansdeteksjon
NO20032013D0 (no) Impedans deteksjonskrets, metode derav og elektrostatisk kapasitans deteksjonskrets
KR19990028179A (ko) 초전형적외선검출장치
NO20032011L (no) Elektrostatisk kapasitansdetekteringskrets, elektrostatisk kapasitansdetekteringsanordning og mikrofonanordning
EP1467178A3 (en) Capacitance-sensing vibratory gyro and method for detecting change in capacitance
NO20032014L (no) Impedansdeteksjonskrets og elektrostatisk kapasitansdeteksjonskrets
TW200500829A (en) Data latch circuit and electronic device
EP1448963B1 (en) An infrared detecting circuit
TW200612652A (en) Drive circuit of piezoelectric transformer and cold-cathode tube lighting device equipped with it
KR910007238A (ko) 증폭 회로
NO20032016D0 (no) Anordning og fremgangsmåte for elektrisk potensialfiksering
CN203520217U (zh) 一种高精度可编程电流源
KR980006534A (ko) 센서회로
KR880004637A (ko) 푸시풀 증폭기 출력단에서 폐로전류를 자동으로 조절하기위한 회로
JP2700500B2 (ja) 圧力検出回路
RU2390882C2 (ru) Межэлектродная схема для пьезоэлектрического измерительного преобразователя
JP2006125943A (ja) 赤外線検知装置
JP2999213B2 (ja) 電話回線接続端末用ループ閉結装置
KR970055251A (ko) 스위치 커패시터형 샘플-홀드 증폭기
KR19990069977A (ko) 오프셋 제어 기능을 갖는 증폭 회로
KR20020056752A (ko) 이동통신 단말기용 전력증폭장치
ATE494741T1 (de) Schaltungsanordnung zur kopfhörererkennung
KR870011021A (ko) 실절단 검출장치
JP2001274637A (ja) 受光回路

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application