EP1234191A4 - Method and apparatus for testing a capacitive sensor - Google Patents

Method and apparatus for testing a capacitive sensor

Info

Publication number
EP1234191A4
EP1234191A4 EP00975031A EP00975031A EP1234191A4 EP 1234191 A4 EP1234191 A4 EP 1234191A4 EP 00975031 A EP00975031 A EP 00975031A EP 00975031 A EP00975031 A EP 00975031A EP 1234191 A4 EP1234191 A4 EP 1234191A4
Authority
EP
European Patent Office
Prior art keywords
testing
capacitive sensor
capacitive
sensor
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.)
Withdrawn
Application number
EP00975031A
Other languages
German (de)
French (fr)
Other versions
EP1234191A1 (en
Inventor
Arnim Holger Littek
Michael Jouhannes Pot
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.)
Med Dev Ltd
Original Assignee
Med Dev Ltd
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 Med Dev Ltd filed Critical Med Dev Ltd
Publication of EP1234191A1 publication Critical patent/EP1234191A1/en
Publication of EP1234191A4 publication Critical patent/EP1234191A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
EP00975031A 1999-11-03 2000-11-03 Method and apparatus for testing a capacitive sensor Withdrawn EP1234191A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ50077099 1999-11-03
NZ50077099 1999-11-03
PCT/NZ2000/000217 WO2001033245A1 (en) 1999-11-03 2000-11-03 Method and apparatus for testing a capacitive sensor

Publications (2)

Publication Number Publication Date
EP1234191A1 EP1234191A1 (en) 2002-08-28
EP1234191A4 true EP1234191A4 (en) 2003-02-19

Family

ID=19927604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00975031A Withdrawn EP1234191A4 (en) 1999-11-03 2000-11-03 Method and apparatus for testing a capacitive sensor

Country Status (5)

Country Link
EP (1) EP1234191A4 (en)
AU (1) AU1313901A (en)
BR (1) BR0015288A (en)
CA (1) CA2390176A1 (en)
WO (1) WO2001033245A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1392585A1 (en) * 2001-06-05 2004-03-03 Siemens Aktiengesellschaft Measurement and detection roller
US6714070B1 (en) * 2002-02-07 2004-03-30 Bei Technologies, Inc. Differential charge amplifier with built-in testing for rotation rate sensor
FR2912814A1 (en) * 2007-07-06 2008-08-22 Siemens Vdo Automotive Sas Passive capacitive sensor's i.e. piezoelectric accelerometer sensor, operation failure detecting method, involves comparing measured and nominal capacities, where variation between capacities above preset threshold indicates failure of cell
US20090241634A1 (en) * 2008-03-28 2009-10-01 Cenk Acar Micromachined accelerometer and method with continuous self-testing
US9791494B2 (en) 2012-01-20 2017-10-17 Lear Corporation Apparatus and method for diagnostics of a capacitive sensor
CN103235277B (en) * 2013-03-29 2016-01-06 国家电网公司 The integrated debugging apparatus of Intelligent transformer station capacitive apparatus on-line monitoring system
US10260983B2 (en) 2014-01-20 2019-04-16 Lear Corporation Apparatus and method for diagnostics of a capacitive sensor with plausibility check
WO2017109520A1 (en) * 2015-12-24 2017-06-29 Cloudtag Inc A wearable heart rate and activity monitor system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253487A (en) * 1991-03-07 1992-09-09 Rover Group A method of detecting malfunction of a piezoelectric sensor
EP0523732A2 (en) * 1991-07-19 1993-01-20 Mitsubishi Petrochemical Co., Ltd. Acceleration sensor with self-test, and circuit therefor
EP0704706A1 (en) * 1994-09-30 1996-04-03 MAGNETI MARELLI S.p.A. A diagnostic system for a capacitive sensor
WO1999013345A1 (en) * 1997-09-11 1999-03-18 Robert Bosch Gmbh Sensor device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220519A (en) * 1990-12-28 1993-06-15 Endevco Corporation Method and apparatus for self-testing a transducer system
DE4133426A1 (en) * 1991-10-09 1993-04-15 Bosch Gmbh Robert Capacitive sensor circuit providing measurement and function test - has dual mode operation with bridge measurement and separate test voltage for checking functional performance via reference capacitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253487A (en) * 1991-03-07 1992-09-09 Rover Group A method of detecting malfunction of a piezoelectric sensor
EP0523732A2 (en) * 1991-07-19 1993-01-20 Mitsubishi Petrochemical Co., Ltd. Acceleration sensor with self-test, and circuit therefor
EP0704706A1 (en) * 1994-09-30 1996-04-03 MAGNETI MARELLI S.p.A. A diagnostic system for a capacitive sensor
WO1999013345A1 (en) * 1997-09-11 1999-03-18 Robert Bosch Gmbh Sensor device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0133245A1 *

Also Published As

Publication number Publication date
WO2001033245A1 (en) 2001-05-10
BR0015288A (en) 2002-07-09
EP1234191A1 (en) 2002-08-28
CA2390176A1 (en) 2001-05-10
AU1313901A (en) 2001-05-14

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