JPH0167589U - - Google Patents
Info
- Publication number
- JPH0167589U JPH0167589U JP1987163385U JP16338587U JPH0167589U JP H0167589 U JPH0167589 U JP H0167589U JP 1987163385 U JP1987163385 U JP 1987163385U JP 16338587 U JP16338587 U JP 16338587U JP H0167589 U JPH0167589 U JP H0167589U
- Authority
- JP
- Japan
- Prior art keywords
- fan
- axis
- phase difference
- receiver
- plane
- 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
- 241000251468 Actinopterygii Species 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000002592 echocardiography Methods 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16338587U JPH0643748Y2 (ja) | 1987-10-26 | 1987-10-26 | 魚体長判別用魚群探知機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16338587U JPH0643748Y2 (ja) | 1987-10-26 | 1987-10-26 | 魚体長判別用魚群探知機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0167589U true JPH0167589U (cs) | 1989-05-01 |
| JPH0643748Y2 JPH0643748Y2 (ja) | 1994-11-14 |
Family
ID=31448066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16338587U Expired - Lifetime JPH0643748Y2 (ja) | 1987-10-26 | 1987-10-26 | 魚体長判別用魚群探知機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643748Y2 (cs) |
-
1987
- 1987-10-26 JP JP16338587U patent/JPH0643748Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643748Y2 (ja) | 1994-11-14 |
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