JPS62114385U - - Google Patents
Info
- Publication number
- JPS62114385U JPS62114385U JP128286U JP128286U JPS62114385U JP S62114385 U JPS62114385 U JP S62114385U JP 128286 U JP128286 U JP 128286U JP 128286 U JP128286 U JP 128286U JP S62114385 U JPS62114385 U JP S62114385U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- low
- reflection intensity
- fish body
- echo
- 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.)
- Pending
Links
- 241000251468 Actinopterygii Species 0.000 claims description 8
- 238000002592 echocardiography Methods 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案に係る一実施例の構成を示すブ
ロツク図、第２図ａ乃至同図ｆは本実施例におけ
る各信号のタイムチヤート図、第３図は本実施例
における魚体像の表示例を示す説明図、第４図は
高周波音波と低周波音波の発射態様図、第５図は
従来装置における魚体像の表示例を示す説明図で
ある。
１……高周波送受波器、２……低周波送受波器
、３……第１のＴＶＧ回路、４……第１のＡ／Ｄ
変換回路、５……第１のメモリ回路、６……第２
のＴＶＧ回路、７……第２のＡ／Ｄ変換回路、８
……第２のメモリ回路、９……演算回路、１０…
…第３のメモリ回路、１１……タイミング制御回
路、１２……第１のＤ／Ａ変換回路、１３……第
２のＤ／Ａ変換回路、１４……第３のＤ／Ａ変換
回路、１５……合成回路、１６……ペン書き記録
機、１７……濃淡補正回路、１８……記録紙。
FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention, FIGS. 2a to 2f are time charts of each signal in this embodiment, and FIG. 3 is a table of fish body images in this embodiment. FIG. 4 is an explanatory diagram showing an example of how high-frequency sound waves and low-frequency sound waves are emitted, and FIG. 5 is an explanatory diagram showing an example of display of a fish body image in a conventional device. 1... High frequency transducer, 2... Low frequency transducer, 3... First TVG circuit, 4... First A/D
Conversion circuit, 5...first memory circuit, 6...second
TVG circuit, 7... second A/D conversion circuit, 8
...Second memory circuit, 9...Arithmetic circuit, 10...
...Third memory circuit, 11...Timing control circuit, 12...First D/A conversion circuit, 13...Second D/A conversion circuit, 14...Third D/A conversion circuit, 15... Synthesis circuit, 16... Pen writing recorder, 17... Shade correction circuit, 18... Recording paper.
Claims (1)
し魚体からの高周波エコーを受波する高周波用送
受波器と； 水中に向けて指向性の広い低周波の
音波を発射し魚体からの低周波エコーを受波する
低周波用送受波器と； 前記低周波用送受波器が
受波する音波の水中での伝搬損失を補正し伝搬損
失の影響のない低周波エコーの反射強度を求める
反射強度補正回路と； 前記高周波用送受波器が
受波する高周波エコーの魚体位置情報と反射強度
補正回路からの低周波エコーによる反射強度情報
とにより魚体の真正情報信号をつくり出す真正情
報創成回路と； 真正情報創成回路からの出力信
号に基づき高周波エコーにより検出される魚体の
深度位置に、補正された低周波エコーの反射強度
に対応した色又は濃度で、魚体を表示する表示器
と； を有することを特徴とする計量用魚群探知
機。 A high-frequency transducer that emits narrowly directional high-frequency sound waves into the water and receives high-frequency echoes from fish; a low-frequency transducer for receiving echo; and a reflection intensity that corrects underwater propagation loss of the sound wave received by the low-frequency transducer to determine the reflection intensity of the low-frequency echo without the influence of propagation loss. a correction circuit; an authentic information generation circuit that creates an authentic information signal of a fish body based on fish body position information of high frequency echoes received by the high frequency transducer and reflection intensity information of low frequency echoes from the reflection intensity correction circuit; an indicator that displays the fish body in a color or density corresponding to the corrected reflection intensity of the low frequency echo at the depth position of the fish body detected by the high frequency echo based on the output signal from the information generation circuit; Characteristic fish finder for weighing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP128286U JPS62114385U (en) | 1986-01-09 | 1986-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP128286U JPS62114385U (en) | 1986-01-09 | 1986-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62114385U true JPS62114385U (en) | 1987-07-21 |
Family
ID=30779045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP128286U Pending JPS62114385U (en) | 1986-01-09 | 1986-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62114385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5334342B1 (en) * | 2012-08-15 | 2013-11-06 | 株式会社ソニック | Weighing fish finder |
-
1986
- 1986-01-09 JP JP128286U patent/JPS62114385U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5334342B1 (en) * | 2012-08-15 | 2013-11-06 | 株式会社ソニック | Weighing fish finder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4308599A (en) | Echo sounder transmitting radiant energy at two frequencies | |
| JPS62114385U (en) | ||
| JPH05196733A (en) | Single fish discriminating circuit of fish finder | |
| US5099458A (en) | Underwater detection system | |
| JP2828259B2 (en) | Fish finder | |
| JPS59200981A (en) | Recording system of fish finder | |
| JPH0316072Y2 (en) | ||
| JPS62174285U (en) | ||
| JPS5558473A (en) | Depth sonar | |
| JP3955677B2 (en) | Echo hearing device | |
| JPH0431594Y2 (en) | ||
| JPH0514222Y2 (en) | ||
| JPS61209385A (en) | Method and device for improving state of rendering of image transmitted from side section sonar | |
| JP2001141438A (en) | Device for measuring thickness of bottom mud | |
| JPH01295189A (en) | Electronic tilt fish finder | |
| JPH0526153B2 (en) | ||
| JPH11211827A (en) | Fish detector | |
| JPS63200784U (en) | ||
| JPS6139975Y2 (en) | ||
| JPS63128481U (en) | ||
| JPS62163783U (en) | ||
| JPS6222090A (en) | Ultrasonic detection and display device | |
| JPS6296512U (en) | ||
| JPS63105034U (en) | ||
| JPS6230174U (en) |