JPH0310281U - - Google Patents
Info
- Publication number
- JPH0310281U JPH0310281U JP7061789U JP7061789U JPH0310281U JP H0310281 U JPH0310281 U JP H0310281U JP 7061789 U JP7061789 U JP 7061789U JP 7061789 U JP7061789 U JP 7061789U JP H0310281 U JPH0310281 U JP H0310281U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- microphones
- detection device
- output signals
- traveling wave
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 230000002250 progressing effect Effects 0.000 description 1
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7061789U JPH0310281U (https=) | 1989-06-16 | 1989-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7061789U JPH0310281U (https=) | 1989-06-16 | 1989-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0310281U true JPH0310281U (https=) | 1991-01-31 |
Family
ID=31606921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7061789U Pending JPH0310281U (https=) | 1989-06-16 | 1989-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310281U (https=) |
-
1989
- 1989-06-16 JP JP7061789U patent/JPH0310281U/ja active Pending
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