JPS5854533U - engine notking sensor - Google Patents
engine notking sensorInfo
- Publication number
- JPS5854533U JPS5854533U JP15025681U JP15025681U JPS5854533U JP S5854533 U JPS5854533 U JP S5854533U JP 15025681 U JP15025681 U JP 15025681U JP 15025681 U JP15025681 U JP 15025681U JP S5854533 U JPS5854533 U JP S5854533U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- sensor
- notking
- knocking sensor
- piezoelectric elements
- 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.)
- Granted
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図は従来のノッキングセンサの断面図、第２図は第
１図のノッキングセンサの周波数−出力電圧特性図、第
３図は第１図のノッキングセンサの時間−出力電圧特性
図、第４図は本考案に係るノッキングセンサの一部断面
正面図、第５図は第４図のノッキングセンサの圧電素子
部分の詳細図、第６図は圧電素子のインピーダンス軌跡
の説明図、 ゛第７図ａ、 ｂ、 ｃおよびｄは夫
々第４図のノッキングセンサの出力電圧のベクトルによ
る説明図、第８図は圧電素子の出力電圧特性図、第９図
は第４図のノッキングセンサの出力特性図、第１０図お
よび第１１図は第５図の変形例の説明図である。
１１・・・ベース、ｌｌａ・・・突部、１４．１４’。
１５．１５”・・・圧電素子、１６・・・金属板、１７
・・・ターミナル、２１・・・キャップ。Figure 1 is a sectional view of a conventional knocking sensor, Figure 2 is a frequency-output voltage characteristic diagram of the knocking sensor in Figure 1, Figure 3 is a time-output voltage characteristic diagram of the knocking sensor in Figure 1, and Figure 4 is a diagram of the time-output voltage characteristic of the knocking sensor in Figure 1. 5 is a detailed view of the piezoelectric element portion of the knocking sensor of FIG. 4, and FIG. 6 is an explanatory diagram of the impedance locus of the piezoelectric element. a, b, c, and d are vector explanatory diagrams of the output voltage of the knocking sensor in Figure 4, Figure 8 is an output voltage characteristic diagram of the piezoelectric element, and Figure 9 is an output characteristic diagram of the knocking sensor in Figure 4. , FIG. 10 and FIG. 11 are explanatory diagrams of a modification of FIG. 5. 11...Base, lla...Protrusion, 14.14'. 15.15"...Piezoelectric element, 16...Metal plate, 17
...Terminal, 21...Cap.
Claims (1)
僅かに異なる少くとも２つの圧電素子を振動可能に固定
し、これら圧電素子を逆極性となるように接続したこと
を特徴とするエンジンのノッキングセンサ。A knocking sensor for an engine, characterized in that at least two piezoelectric elements having slightly different resonance frequencies are vibably fixed in a base having a part fixed to the engine, and these piezoelectric elements are connected so as to have opposite polarities. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15025681U JPS5854533U (en) | 1981-10-09 | 1981-10-09 | engine notking sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15025681U JPS5854533U (en) | 1981-10-09 | 1981-10-09 | engine notking sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5854533U true JPS5854533U (en) | 1983-04-13 |
| JPS6143208Y2 JPS6143208Y2 (en) | 1986-12-06 |
Family
ID=29942989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15025681U Granted JPS5854533U (en) | 1981-10-09 | 1981-10-09 | engine notking sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854533U (en) |
-
1981
- 1981-10-09 JP JP15025681U patent/JPS5854533U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6143208Y2 (en) | 1986-12-06 |
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