GB2263975B - A method of detecting malfunction in a piezoelectric sensor system - Google Patents

A method of detecting malfunction in a piezoelectric sensor system

Info

Publication number
GB2263975B
GB2263975B GB9201301A GB9201301A GB2263975B GB 2263975 B GB2263975 B GB 2263975B GB 9201301 A GB9201301 A GB 9201301A GB 9201301 A GB9201301 A GB 9201301A GB 2263975 B GB2263975 B GB 2263975B
Authority
GB
United Kingdom
Prior art keywords
sensor system
piezoelectric sensor
detecting malfunction
malfunction
detecting
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.)
Expired - Fee Related
Application number
GB9201301A
Other versions
GB2263975A (en
GB9201301D0 (en
Inventor
John Gavin Bryer
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.)
MG Rover Group Ltd
Original Assignee
MG Rover Group 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 MG Rover Group Ltd filed Critical MG Rover Group Ltd
Priority to GB9201301A priority Critical patent/GB2263975B/en
Publication of GB9201301D0 publication Critical patent/GB9201301D0/en
Publication of GB2263975A publication Critical patent/GB2263975A/en
Application granted granted Critical
Publication of GB2263975B publication Critical patent/GB2263975B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/005—Testing or calibrating of detectors covered by the subgroups of G01H3/00
    • 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
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
GB9201301A 1992-01-22 1992-01-22 A method of detecting malfunction in a piezoelectric sensor system Expired - Fee Related GB2263975B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9201301A GB2263975B (en) 1992-01-22 1992-01-22 A method of detecting malfunction in a piezoelectric sensor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9201301A GB2263975B (en) 1992-01-22 1992-01-22 A method of detecting malfunction in a piezoelectric sensor system

Publications (3)

Publication Number Publication Date
GB9201301D0 GB9201301D0 (en) 1992-03-11
GB2263975A GB2263975A (en) 1993-08-11
GB2263975B true GB2263975B (en) 1995-01-25

Family

ID=10709002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9201301A Expired - Fee Related GB2263975B (en) 1992-01-22 1992-01-22 A method of detecting malfunction in a piezoelectric sensor system

Country Status (1)

Country Link
GB (1) GB2263975B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138907B1 (en) * 2000-04-01 2006-10-04 Robert Bosch GmbH Fuel injection system
GB0515715D0 (en) 2005-07-30 2005-09-07 Rolls Royce Plc Sensor measurement error
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
DE102011084514A1 (en) * 2011-10-14 2013-04-18 Ifm Electronic Gmbh Method for checking the function of a pressure sensor
US9568387B2 (en) * 2012-08-08 2017-02-14 Rosemount Inc. Thermal diagnostic for single-crystal process fluid pressure sensor
DE102013110368A1 (en) 2013-09-19 2015-03-19 Endress + Hauser Gmbh + Co. Kg Pressure Transmitter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369435A (en) * 1970-10-30 1974-10-09 Secr Defence Piezoelectric transducer testing system
US4418567A (en) * 1979-10-19 1983-12-06 Robert Bosch Gmbh Knock sensing apparatus with fail indicator for use in an internal combustion engine
GB2239096A (en) * 1989-12-11 1991-06-19 Kellett Michael A Signal processing circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369435A (en) * 1970-10-30 1974-10-09 Secr Defence Piezoelectric transducer testing system
US4418567A (en) * 1979-10-19 1983-12-06 Robert Bosch Gmbh Knock sensing apparatus with fail indicator for use in an internal combustion engine
GB2239096A (en) * 1989-12-11 1991-06-19 Kellett Michael A Signal processing circuits

Also Published As

Publication number Publication date
GB2263975A (en) 1993-08-11
GB9201301D0 (en) 1992-03-11

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010122