JPS648640U - - Google Patents
Info
- Publication number
- JPS648640U JPS648640U JP10347487U JP10347487U JPS648640U JP S648640 U JPS648640 U JP S648640U JP 10347487 U JP10347487 U JP 10347487U JP 10347487 U JP10347487 U JP 10347487U JP S648640 U JPS648640 U JP S648640U
- Authority
- JP
- Japan
- Prior art keywords
- knock
- detecting
- determining
- detection means
- density
- 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 description 6
- 239000000567 combustion gas Substances 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347487U JPS648640U (enExample) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347487U JPS648640U (enExample) | 1987-07-07 | 1987-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648640U true JPS648640U (enExample) | 1989-01-18 |
Family
ID=31334340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10347487U Pending JPS648640U (enExample) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648640U (enExample) |
-
1987
- 1987-07-07 JP JP10347487U patent/JPS648640U/ja active Pending
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