JPS5772020A - Vibration detector - Google Patents

Vibration detector

Info

Publication number
JPS5772020A
JPS5772020A JP14874980A JP14874980A JPS5772020A JP S5772020 A JPS5772020 A JP S5772020A JP 14874980 A JP14874980 A JP 14874980A JP 14874980 A JP14874980 A JP 14874980A JP S5772020 A JPS5772020 A JP S5772020A
Authority
JP
Japan
Prior art keywords
cover
piezoelectric element
nut
resonant
change
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
JP14874980A
Other languages
English (en)
Inventor
Takeshi Tamura
Hiromasa Kubo
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.)
Hitachi Ltd
Original Assignee
Japan Electronic Control Systems 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 Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP14874980A priority Critical patent/JPS5772020A/ja
Publication of JPS5772020A publication Critical patent/JPS5772020A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP14874980A 1980-10-23 1980-10-23 Vibration detector Pending JPS5772020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14874980A JPS5772020A (en) 1980-10-23 1980-10-23 Vibration detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14874980A JPS5772020A (en) 1980-10-23 1980-10-23 Vibration detector

Publications (1)

Publication Number Publication Date
JPS5772020A true JPS5772020A (en) 1982-05-06

Family

ID=15459761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14874980A Pending JPS5772020A (en) 1980-10-23 1980-10-23 Vibration detector

Country Status (1)

Country Link
JP (1) JPS5772020A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935113A (ja) * 1982-08-23 1984-02-25 Matsushita Electric Ind Co Ltd ノツクセンサ
JPS59115322U (ja) * 1983-01-25 1984-08-03 日本特殊陶業株式会社 挟圧型圧電センサー

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935113A (ja) * 1982-08-23 1984-02-25 Matsushita Electric Ind Co Ltd ノツクセンサ
JPS59115322U (ja) * 1983-01-25 1984-08-03 日本特殊陶業株式会社 挟圧型圧電センサー

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