JPS6472012A - Acceleration sensor - Google Patents

Acceleration sensor

Info

Publication number
JPS6472012A
JPS6472012A JP62229043A JP22904387A JPS6472012A JP S6472012 A JPS6472012 A JP S6472012A JP 62229043 A JP62229043 A JP 62229043A JP 22904387 A JP22904387 A JP 22904387A JP S6472012 A JPS6472012 A JP S6472012A
Authority
JP
Japan
Prior art keywords
oscillator
electrodes
acceleration
ceramic
frequency
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.)
Granted
Application number
JP62229043A
Other languages
Japanese (ja)
Other versions
JPH0652191B2 (en
Inventor
Juhei Takahashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62229043A priority Critical patent/JPH0652191B2/en
Publication of JPS6472012A publication Critical patent/JPS6472012A/en
Publication of JPH0652191B2 publication Critical patent/JPH0652191B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To make a self-check on the normalcy of operation by using divided electrodes for acceleration detection and as an actuator for an oscillator for piezoelectric ceramic, and comparing detected acceleration with the oscillation frequency of the oscillator. CONSTITUTION:The vibrator of the sensor consists of the piezoelectric ceramic 10 and a metallic diaphragm 12 stuck on its reverse surface. If acceleration is generated where the vibrator is fixed, corresponding displacement is caused and charges are generated between silver electrodes 11a and 11c, and 11b and 11d of the ceramic 10. Variation in the quantity of the charges between the electrodes 11a and 11c is obtained by an impedance converter 13 and an amplifier filter 14 as a voltage corresponding to the acceleration. Further, the displacement between the electrodes 11a and 11d is applied to the oscillator as a current of frequency corresponding to the acceleration and the oscillator 15 is driven at the frequency, so that the ceramic 10 between the electrodes 11b and 11d operates as the actuator for the oscillator 15.
JP62229043A 1987-09-11 1987-09-11 Acceleration sensor Expired - Fee Related JPH0652191B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229043A JPH0652191B2 (en) 1987-09-11 1987-09-11 Acceleration sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229043A JPH0652191B2 (en) 1987-09-11 1987-09-11 Acceleration sensor

Publications (2)

Publication Number Publication Date
JPS6472012A true JPS6472012A (en) 1989-03-16
JPH0652191B2 JPH0652191B2 (en) 1994-07-06

Family

ID=16885846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229043A Expired - Fee Related JPH0652191B2 (en) 1987-09-11 1987-09-11 Acceleration sensor

Country Status (1)

Country Link
JP (1) JPH0652191B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302759A (en) * 2007-06-06 2008-12-18 Calsonic Kansei Corp Collision determination device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56135132U (en) * 1980-03-14 1981-10-13
JPS6179159A (en) * 1984-09-27 1986-04-22 Nachi Fujikoshi Corp Self-diagnostic sensor
JPS63241467A (en) * 1987-03-30 1988-10-06 Honda Motor Co Ltd Vehicle collision detection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56135132U (en) * 1980-03-14 1981-10-13
JPS6179159A (en) * 1984-09-27 1986-04-22 Nachi Fujikoshi Corp Self-diagnostic sensor
JPS63241467A (en) * 1987-03-30 1988-10-06 Honda Motor Co Ltd Vehicle collision detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302759A (en) * 2007-06-06 2008-12-18 Calsonic Kansei Corp Collision determination device

Also Published As

Publication number Publication date
JPH0652191B2 (en) 1994-07-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees