JPS62155324U - - Google Patents
Info
- Publication number
- JPS62155324U JPS62155324U JP4299486U JP4299486U JPS62155324U JP S62155324 U JPS62155324 U JP S62155324U JP 4299486 U JP4299486 U JP 4299486U JP 4299486 U JP4299486 U JP 4299486U JP S62155324 U JPS62155324 U JP S62155324U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- knocking sensor
- phase difference
- high frequency
- frequency signal
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000004092 self-diagnosis Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000006866 deterioration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299486U JPS62155324U (enExample) | 1986-03-26 | 1986-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299486U JPS62155324U (enExample) | 1986-03-26 | 1986-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62155324U true JPS62155324U (enExample) | 1987-10-02 |
Family
ID=30859436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4299486U Pending JPS62155324U (enExample) | 1986-03-26 | 1986-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62155324U (enExample) |
-
1986
- 1986-03-26 JP JP4299486U patent/JPS62155324U/ja active Pending
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