JPS58165685U - Noise removal device for underwater object detection equipment - Google Patents

Noise removal device for underwater object detection equipment

Info

Publication number
JPS58165685U
JPS58165685U JP6189382U JP6189382U JPS58165685U JP S58165685 U JPS58165685 U JP S58165685U JP 6189382 U JP6189382 U JP 6189382U JP 6189382 U JP6189382 U JP 6189382U JP S58165685 U JPS58165685 U JP S58165685U
Authority
JP
Japan
Prior art keywords
object detection
noise removal
removal device
underwater object
detection equipment
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
Application number
JP6189382U
Other languages
Japanese (ja)
Inventor
正司 上野
泰則 渡辺
正彦 角田
Original Assignee
海上電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 海上電機株式会社 filed Critical 海上電機株式会社
Priority to JP6189382U priority Critical patent/JPS58165685U/en
Publication of JPS58165685U publication Critical patent/JPS58165685U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は実施例のブロックダイヤグラム。 １・・・魚探用送受波器、２・・・主増巾器、３・・・
ノイズ検出用受波器、４・・・副増巾器、５・・・レベ
ル検出器。FIG. 1 is a block diagram of an embodiment. 1... Fish finder transducer, 2... Main amplifier, 3...
Noise detection receiver, 4... sub-amplifier, 5... level detector.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 超音波を用いて魚群などを探知する水中物体探知装置に
おいて、該装置に用いられる送受波器め共振周波数と近
い値の共振周波数を有するノイズ検出用受波器と、副増
巾器及びレベル検出器とが順次接続されており、該受波
器で受信されたノイズレベルを検出した出力が、前記本
体の送受波器に接続された主増巾器に印加され、該主増
巾器の利得が制御されるように構成されたことを特徴と
する水中物体探知装置のノイズ除去装置。An underwater object detection device that uses ultrasonic waves to detect schools of fish, etc. includes a noise detection receiver having a resonance frequency close to the resonance frequency of the transducer used in the device, a sub-amplifier, and a level detection device. The output of detecting the noise level received by the transducer is applied to the main amplifier connected to the transducer of the main body, and the gain of the main amplifier is 1. A noise removal device for an underwater object detection device, characterized in that the noise removal device is configured to control.
JP6189382U 1982-04-30 1982-04-30 Noise removal device for underwater object detection equipment Pending JPS58165685U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6189382U JPS58165685U (en) 1982-04-30 1982-04-30 Noise removal device for underwater object detection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6189382U JPS58165685U (en) 1982-04-30 1982-04-30 Noise removal device for underwater object detection equipment

Publications (1)

Publication Number Publication Date
JPS58165685U true JPS58165685U (en) 1983-11-04

Family

ID=30072068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6189382U Pending JPS58165685U (en) 1982-04-30 1982-04-30 Noise removal device for underwater object detection equipment

Country Status (1)

Country Link
JP (1) JPS58165685U (en)

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