JPH0167588U - - Google Patents
Info
- Publication number
- JPH0167588U JPH0167588U JP1987163384U JP16338487U JPH0167588U JP H0167588 U JPH0167588 U JP H0167588U JP 1987163384 U JP1987163384 U JP 1987163384U JP 16338487 U JP16338487 U JP 16338487U JP H0167588 U JPH0167588 U JP H0167588U
- Authority
- JP
- Japan
- Prior art keywords
- phase difference
- fan
- difference detection
- axis
- fish
- 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 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16338487U JPH0648453Y2 (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 |
---|---|---|---|
JP16338487U JPH0648453Y2 (ja) | 1987-10-26 | 1987-10-26 | 魚体長判別用魚群探知機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0167588U true JPH0167588U (it) | 1989-05-01 |
JPH0648453Y2 JPH0648453Y2 (ja) | 1994-12-12 |
Family
ID=31448064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16338487U Expired - Lifetime JPH0648453Y2 (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) | JPH0648453Y2 (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008232795A (ja) * | 2007-03-20 | 2008-10-02 | Furuno Electric Co Ltd | 超音波探知装置および超音波探知方法 |
-
1987
- 1987-10-26 JP JP16338487U patent/JPH0648453Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008232795A (ja) * | 2007-03-20 | 2008-10-02 | Furuno Electric Co Ltd | 超音波探知装置および超音波探知方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH0648453Y2 (ja) | 1994-12-12 |
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