JPS5284781A - Fault detector for sensing system using piezoelectric sensors - Google Patents

Fault detector for sensing system using piezoelectric sensors

Info

Publication number
JPS5284781A
JPS5284781A JP15846075A JP15846075A JPS5284781A JP S5284781 A JPS5284781 A JP S5284781A JP 15846075 A JP15846075 A JP 15846075A JP 15846075 A JP15846075 A JP 15846075A JP S5284781 A JPS5284781 A JP S5284781A
Authority
JP
Japan
Prior art keywords
sensing system
piezoelectric sensors
fault detector
piezoelectric
sensors
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
JP15846075A
Other languages
Japanese (ja)
Inventor
Toshiaki Naka
Wataru Endo
Shigenori Kodera
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15846075A priority Critical patent/JPS5284781A/en
Publication of JPS5284781A publication Critical patent/JPS5284781A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: In a sensing system for vibration, pressure, etc. using piezoelectric sensors provided with a piezoelectric vibrator, the piezoelectric sensors are made one side of a four-side bridge, whereby the faults in the sensing system are accurately detected without increasing the number of wirings.
COPYRIGHT: (C)1977,JPO&Japio
JP15846075A 1975-12-31 1975-12-31 Fault detector for sensing system using piezoelectric sensors Pending JPS5284781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15846075A JPS5284781A (en) 1975-12-31 1975-12-31 Fault detector for sensing system using piezoelectric sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15846075A JPS5284781A (en) 1975-12-31 1975-12-31 Fault detector for sensing system using piezoelectric sensors

Publications (1)

Publication Number Publication Date
JPS5284781A true JPS5284781A (en) 1977-07-14

Family

ID=15672215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15846075A Pending JPS5284781A (en) 1975-12-31 1975-12-31 Fault detector for sensing system using piezoelectric sensors

Country Status (1)

Country Link
JP (1) JPS5284781A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733329A (en) * 1980-07-18 1982-02-23 Bosch Gmbh Robert Knocking vibration detection sensor
JPS5811824A (en) * 1981-07-15 1983-01-22 Hitachi Ltd Detecting circuit for short circuit of piezoelectric knock sensor
JPS5826631U (en) * 1981-08-13 1983-02-21 三菱電機株式会社 vibration sensor
JPS5846131U (en) * 1981-09-24 1983-03-28 三菱電機株式会社 vibration sensor
JPS62115679U (en) * 1986-01-16 1987-07-23
JPS63266631A (en) * 1987-04-23 1988-11-02 Hitachi Electronics Eng Co Ltd Disconnection detecting circuit for piezoelectric element
KR100647242B1 (en) 2005-04-01 2006-11-23 윤점채 A Tester for checking the quality of vibration-senors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733329A (en) * 1980-07-18 1982-02-23 Bosch Gmbh Robert Knocking vibration detection sensor
JPS5811824A (en) * 1981-07-15 1983-01-22 Hitachi Ltd Detecting circuit for short circuit of piezoelectric knock sensor
JPH0136567B2 (en) * 1981-07-15 1989-08-01 Hitachi Ltd
JPS5826631U (en) * 1981-08-13 1983-02-21 三菱電機株式会社 vibration sensor
JPS5846131U (en) * 1981-09-24 1983-03-28 三菱電機株式会社 vibration sensor
JPS62115679U (en) * 1986-01-16 1987-07-23
JPS63266631A (en) * 1987-04-23 1988-11-02 Hitachi Electronics Eng Co Ltd Disconnection detecting circuit for piezoelectric element
KR100647242B1 (en) 2005-04-01 2006-11-23 윤점채 A Tester for checking the quality of vibration-senors

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