JPH0621033Y2 - 魚群探知機 - Google Patents
魚群探知機Info
- Publication number
- JPH0621033Y2 JPH0621033Y2 JP8311687U JP8311687U JPH0621033Y2 JP H0621033 Y2 JPH0621033 Y2 JP H0621033Y2 JP 8311687 U JP8311687 U JP 8311687U JP 8311687 U JP8311687 U JP 8311687U JP H0621033 Y2 JPH0621033 Y2 JP H0621033Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- fish
- reflected
- transmission
- tvg
- 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.)
- Expired - Lifetime
Links
- 241000251468 Actinopterygii Species 0.000 claims description 60
- 230000005540 biological transmission Effects 0.000 claims description 53
- 230000010354 integration Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001960 triggered effect 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 |
|---|---|---|---|
| JP8311687U JPH0621033Y2 (ja) | 1987-05-29 | 1987-05-29 | 魚群探知機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8311687U JPH0621033Y2 (ja) | 1987-05-29 | 1987-05-29 | 魚群探知機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63190982U JPS63190982U (en]) | 1988-12-08 |
| JPH0621033Y2 true JPH0621033Y2 (ja) | 1994-06-01 |
Family
ID=30936411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8311687U Expired - Lifetime JPH0621033Y2 (ja) | 1987-05-29 | 1987-05-29 | 魚群探知機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621033Y2 (en]) |
-
1987
- 1987-05-29 JP JP8311687U patent/JPH0621033Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63190982U (en]) | 1988-12-08 |
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