JPH02711Y2 - - Google Patents
Info
- Publication number
- JPH02711Y2 JPH02711Y2 JP5151885U JP5151885U JPH02711Y2 JP H02711 Y2 JPH02711 Y2 JP H02711Y2 JP 5151885 U JP5151885 U JP 5151885U JP 5151885 U JP5151885 U JP 5151885U JP H02711 Y2 JPH02711 Y2 JP H02711Y2
- Authority
- JP
- Japan
- Prior art keywords
- fish
- circuit
- square
- signal
- transducer
- 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
Links
- 241000251468 Actinopterygii Species 0.000 claims description 68
- 238000005303 weighing Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007787 solid Substances 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 |
|---|---|---|---|
| JP5151885U JPH02711Y2 (fr) | 1985-04-06 | 1985-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5151885U JPH02711Y2 (fr) | 1985-04-06 | 1985-04-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61167570U JPS61167570U (fr) | 1986-10-17 |
| JPH02711Y2 true JPH02711Y2 (fr) | 1990-01-09 |
Family
ID=30570641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5151885U Expired JPH02711Y2 (fr) | 1985-04-06 | 1985-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02711Y2 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5082031B2 (ja) | 2004-10-01 | 2012-11-28 | 国立大学法人北海道大学 | 魚群の魚量情報を算出可能な水中探知装置及びその方法 |
| JP4776960B2 (ja) * | 2005-03-29 | 2011-09-21 | 古野電気株式会社 | 超音波送受信装置 |
-
1985
- 1985-04-06 JP JP5151885U patent/JPH02711Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61167570U (fr) | 1986-10-17 |
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