JPS5590822A - Knocking sensor - Google Patents
Knocking sensorInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345069B2 (en) * | 1974-06-12 | 1978-12-04 |
-
1978
- 1978-12-29 JP JP16574578A patent/JPS5590822A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345069B2 (en) * | 1974-06-12 | 1978-12-04 |
Cited By (2)
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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