JPH02110391A - 計量用魚群探知機 - Google Patents
計量用魚群探知機Info
- Publication number
- JPH02110391A JPH02110391A JP23105189A JP23105189A JPH02110391A JP H02110391 A JPH02110391 A JP H02110391A JP 23105189 A JP23105189 A JP 23105189A JP 23105189 A JP23105189 A JP 23105189A JP H02110391 A JPH02110391 A JP H02110391A
- Authority
- JP
- Japan
- Prior art keywords
- fish body
- frequency
- fish
- reflection intensity
- information
- 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
- 238000005259 measurement Methods 0.000 title description 2
- 241000251468 Actinopterygii Species 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002592 echocardiography Methods 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000004040 coloring Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000003705 background correction Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000009182 swimming Effects 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 |
|---|---|---|---|
| JP23105189A JPH02110391A (ja) | 1989-09-06 | 1989-09-06 | 計量用魚群探知機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23105189A JPH02110391A (ja) | 1989-09-06 | 1989-09-06 | 計量用魚群探知機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02110391A true JPH02110391A (ja) | 1990-04-23 |
| JPH0526153B2 JPH0526153B2 (cs) | 1993-04-15 |
Family
ID=16917518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23105189A Granted JPH02110391A (ja) | 1989-09-06 | 1989-09-06 | 計量用魚群探知機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02110391A (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000147118A (ja) * | 1998-11-10 | 2000-05-26 | Kaijo Corp | 計量魚群探知機 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652273A (en) * | 1979-10-04 | 1981-05-11 | Naka Tech Lab | Floor construction of building |
-
1989
- 1989-09-06 JP JP23105189A patent/JPH02110391A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652273A (en) * | 1979-10-04 | 1981-05-11 | Naka Tech Lab | Floor construction of building |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000147118A (ja) * | 1998-11-10 | 2000-05-26 | Kaijo Corp | 計量魚群探知機 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526153B2 (cs) | 1993-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |