JPH021248B2 - - Google Patents

Info

Publication number
JPH021248B2
JPH021248B2 JP57025315A JP2531582A JPH021248B2 JP H021248 B2 JPH021248 B2 JP H021248B2 JP 57025315 A JP57025315 A JP 57025315A JP 2531582 A JP2531582 A JP 2531582A JP H021248 B2 JPH021248 B2 JP H021248B2
Authority
JP
Japan
Prior art keywords
piezoelectric
knocking
value
sensor
conversion element
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 - Lifetime
Application number
JP57025315A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58142227A (ja
Inventor
Kenzo Miura
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 JP57025315A priority Critical patent/JPS58142227A/ja
Publication of JPS58142227A publication Critical patent/JPS58142227A/ja
Publication of JPH021248B2 publication Critical patent/JPH021248B2/ja
Granted 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)
  • Testing Of Engines (AREA)
JP57025315A 1982-02-18 1982-02-18 圧電型ノツキングセンサ Granted JPS58142227A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57025315A JPS58142227A (ja) 1982-02-18 1982-02-18 圧電型ノツキングセンサ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57025315A JPS58142227A (ja) 1982-02-18 1982-02-18 圧電型ノツキングセンサ

Publications (2)

Publication Number Publication Date
JPS58142227A JPS58142227A (ja) 1983-08-24
JPH021248B2 true JPH021248B2 (enrdf_load_stackoverflow) 1990-01-10

Family

ID=12162558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57025315A Granted JPS58142227A (ja) 1982-02-18 1982-02-18 圧電型ノツキングセンサ

Country Status (1)

Country Link
JP (1) JPS58142227A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6156920A (ja) * 1984-08-28 1986-03-22 Nippon Denso Co Ltd 圧電素子を用いた振動及び音波の検出器
JP4919020B2 (ja) * 2006-10-12 2012-04-18 トヨタ自動車株式会社 内燃機関のノック判定装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55170623U (enrdf_load_stackoverflow) * 1979-05-24 1980-12-08
JPS567025A (en) * 1979-06-29 1981-01-24 Nissan Motor Co Ltd Vibration sensor

Also Published As

Publication number Publication date
JPS58142227A (ja) 1983-08-24

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