JPS59187728U - Knocking detector for internal combustion engine - Google Patents
Knocking detector for internal combustion engineInfo
- Publication number
- JPS59187728U JPS59187728U JP8227783U JP8227783U JPS59187728U JP S59187728 U JPS59187728 U JP S59187728U JP 8227783 U JP8227783 U JP 8227783U JP 8227783 U JP8227783 U JP 8227783U JP S59187728 U JPS59187728 U JP S59187728U
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- knocking detector
- temperature coefficient
- piezoelectric 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.)
- Pending
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は内燃機関用ノッキング検出器の従来例を示す断
面図、第２図Ａは圧電素子の誘電率の温度特性を示す図
、同図Ｂはその発生電圧の温度特性を示す図である。第
３図は本考案にかかる内燃機関用ノッキング検出器の一
実施例を示す断面図、第４図Ａはその圧電素子と温度補
償用コンデンサの誘電率の温度特性を示す図、同図Ｂは
その発生電圧の温度特性を示す図である。
８・・・・・・ハウジング、９，１θ・・・・・・電極
、１１・・・・・・圧電素子、１２・・・・・・端子板
、１３・・・・・・錘、１４・・・・・・ワッシャ、１
５・・・・・・ネジ、１６・・・・・・温度補償用コン
デンサ、１７・曲・ピン、１８・四傅−ド線、１９・・
・・・・樹脂、２０・・・・・・蓋。Fig. 1 is a sectional view showing a conventional example of a knocking detector for an internal combustion engine, Fig. 2A is a diagram showing the temperature characteristics of the dielectric constant of a piezoelectric element, and Fig. 2B is a diagram showing the temperature characteristics of the generated voltage. . FIG. 3 is a sectional view showing an embodiment of the knocking detector for internal combustion engines according to the present invention, FIG. 4A is a diagram showing the temperature characteristics of the dielectric constant of the piezoelectric element and the temperature compensation capacitor, and FIG. FIG. 3 is a diagram showing the temperature characteristics of the generated voltage. 8... Housing, 9, 1θ... Electrode, 11... Piezoelectric element, 12... Terminal board, 13... Weight, 14 ...Washer, 1
5...Screw, 16...Temperature compensation capacitor, 17.Bend/pin, 18.Four wires, 19...
... Resin, 20 ... Lid.
Claims (1)
に、静電容量の温度係数が正である圧電素子に負の温度
係数を持つ温度補償用コンデンサを並列接続して前記ハ
ウジング内に収納し、発生゛ 電圧の温度係数を補正
してなることを特徴とする内燃機関用ノッキング検出器
。A piezoelectric element is clamped and fixed between the housing and the weight, and a temperature compensation capacitor having a negative temperature coefficient is connected in parallel to the piezoelectric element having a positive temperature coefficient of capacitance and housed in the housing, A knocking detector for an internal combustion engine is characterized by correcting the temperature coefficient of the generated voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8227783U JPS59187728U (en) | 1983-05-30 | 1983-05-30 | Knocking detector for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8227783U JPS59187728U (en) | 1983-05-30 | 1983-05-30 | Knocking detector for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59187728U true JPS59187728U (en) | 1984-12-13 |
Family
ID=30212226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8227783U Pending JPS59187728U (en) | 1983-05-30 | 1983-05-30 | Knocking detector for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59187728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01222673A (en) * | 1988-02-29 | 1989-09-05 | Nippon Denso Co Ltd | Controlling method for inverse piezoelectric effect type ceramic actuator |
-
1983
- 1983-05-30 JP JP8227783U patent/JPS59187728U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01222673A (en) * | 1988-02-29 | 1989-09-05 | Nippon Denso Co Ltd | Controlling method for inverse piezoelectric effect type ceramic actuator |
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