JPS5590822A - Knocking sensor - Google Patents

Knocking sensor

Info

Publication number
JPS5590822A
JPS5590822A JP16574578A JP16574578A JPS5590822A JP S5590822 A JPS5590822 A JP S5590822A JP 16574578 A JP16574578 A JP 16574578A JP 16574578 A JP16574578 A JP 16574578A JP S5590822 A JPS5590822 A JP S5590822A
Authority
JP
Japan
Prior art keywords
metal
plate
case
knocking
sensor
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
JP16574578A
Other languages
Japanese (ja)
Inventor
Daisaku Sawada
Juhei Takahashi
Tadayoshi Makino
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.)
Toyota Motor Corp
Panasonic Holdings Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp, Matsushita Electric Industrial Co Ltd filed Critical Toyota Motor Corp
Priority to JP16574578A priority Critical patent/JPS5590822A/en
Priority to US06/106,881 priority patent/US4307602A/en
Priority to DE19792952580 priority patent/DE2952580A1/en
Publication of JPS5590822A publication Critical patent/JPS5590822A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To detect the knocking of an engine at preferable S/N ratio by a knocking sensor by resonating it with frequency of predetermined range and employing a vibration pickup having high Q.
CONSTITUTION: A metal piece 2 having additional weight function is fixed to the end of a bimorph piezoelectric ceramic vibrator 1 with an insulating adhesive, and fixed to a metal case 3 with a metal plate 5, a glass epoxy base plate 4 and clamping screws 6. A shielded earth wire 7 is soldered to the metal plate 5 and the plate 6 is conducted via the screws with the metal case 3. Accordingly, the case is grounded. By suitably selecting the length, width and thickness of the vibrator 1 and the weight of the additional weight 2 the resonant frequency of this sensor is set, for example, at 6W9kHz.
COPYRIGHT: (C)1980,JPO&Japio
JP16574578A 1978-12-29 1978-12-29 Knocking sensor Pending JPS5590822A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16574578A JPS5590822A (en) 1978-12-29 1978-12-29 Knocking sensor
US06/106,881 US4307602A (en) 1978-12-29 1979-12-27 Knock sensor
DE19792952580 DE2952580A1 (en) 1978-12-29 1979-12-28 KNOCK SENSOR TO DETECT THE KNOCK OF MOTOR VEHICLE ENGINES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16574578A JPS5590822A (en) 1978-12-29 1978-12-29 Knocking sensor

Publications (1)

Publication Number Publication Date
JPS5590822A true JPS5590822A (en) 1980-07-09

Family

ID=15818263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16574578A Pending JPS5590822A (en) 1978-12-29 1978-12-29 Knocking sensor

Country Status (1)

Country Link
JP (1) JPS5590822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776420A (en) * 1980-10-30 1982-05-13 Seiko Electronic Components Ltd Knocking detector for internal combustion engine
JP2012184993A (en) * 2011-03-04 2012-09-27 Nec Tokin Corp Piezoelectric acceleration sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345069B2 (en) * 1974-06-12 1978-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345069B2 (en) * 1974-06-12 1978-12-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776420A (en) * 1980-10-30 1982-05-13 Seiko Electronic Components Ltd Knocking detector for internal combustion engine
JP2012184993A (en) * 2011-03-04 2012-09-27 Nec Tokin Corp Piezoelectric acceleration sensor

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