JPS6269176U - - Google Patents

Info

Publication number
JPS6269176U
JPS6269176U JP16104885U JP16104885U JPS6269176U JP S6269176 U JPS6269176 U JP S6269176U JP 16104885 U JP16104885 U JP 16104885U JP 16104885 U JP16104885 U JP 16104885U JP S6269176 U JPS6269176 U JP S6269176U
Authority
JP
Japan
Prior art keywords
fish
propagation attenuation
calculator
signals
correction circuit
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
Application number
JP16104885U
Other languages
English (en)
Other versions
JPH0321500Y2 (ja
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 filed Critical
Priority to JP16104885U priority Critical patent/JPH0321500Y2/ja
Publication of JPS6269176U publication Critical patent/JPS6269176U/ja
Application granted granted Critical
Publication of JPH0321500Y2 publication Critical patent/JPH0321500Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Description

【図面の簡単な説明】
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図はカラーブラウン管表示器の表
示例を示す作用説明図である。 1……送信器、2……受信器、3……送受波器
、4……演算器、5……カラーブラウン管表示器
、6a……超音波、6b……反射波、7……魚、
8……伝搬減衰補正回路、9……増幅回路、C
〜C……色、A,B……サバの画像。

Claims (1)

    【実用新案登録請求の範囲】
  1. 水中に向けて超音波を発射し魚からのエコーを
    受波するとともにその受波した超音波の信号を電
    気信号に変換出力する超音波送受波器と、この超
    音波送受波器からの出力信号にエコーの伝搬減衰
    量を補正する伝搬減衰補正回路と、この伝搬減衰
    補正回路の出力信号に基づいて魚体長を算出する
    演算器と、演算器の算出値に基づいて魚体長を表
    示する表示器とを有することを特徴とする魚体長
    表示装置。
JP16104885U 1985-10-21 1985-10-21 Expired JPH0321500Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16104885U JPH0321500Y2 (ja) 1985-10-21 1985-10-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16104885U JPH0321500Y2 (ja) 1985-10-21 1985-10-21

Publications (2)

Publication Number Publication Date
JPS6269176U true JPS6269176U (ja) 1987-04-30
JPH0321500Y2 JPH0321500Y2 (ja) 1991-05-10

Family

ID=31087001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16104885U Expired JPH0321500Y2 (ja) 1985-10-21 1985-10-21

Country Status (1)

Country Link
JP (1) JPH0321500Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008190875A (ja) * 2007-01-31 2008-08-21 Furuno Electric Co Ltd 水中探知装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008190875A (ja) * 2007-01-31 2008-08-21 Furuno Electric Co Ltd 水中探知装置

Also Published As

Publication number Publication date
JPH0321500Y2 (ja) 1991-05-10

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