JPH0170448U - - Google Patents

Info

Publication number
JPH0170448U
JPH0170448U JP1987165442U JP16544287U JPH0170448U JP H0170448 U JPH0170448 U JP H0170448U JP 1987165442 U JP1987165442 U JP 1987165442U JP 16544287 U JP16544287 U JP 16544287U JP H0170448 U JPH0170448 U JP H0170448U
Authority
JP
Japan
Prior art keywords
opening
communication device
bulge
underwater communication
ultrasonic underwater
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
JP1987165442U
Other languages
English (en)
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 JP1987165442U priority Critical patent/JPH0170448U/ja
Publication of JPH0170448U publication Critical patent/JPH0170448U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Description

【図面の簡単な説明】
第1図はこの考案に係る超音波水中通話器の一
実施例の一部切欠断面図、第2図は従来例と実施
例の周波数感度特性を表わしたグラフ、第3図及
び第4図は従来例の断面図である。 1……ゴム成形体、2……超音波振動子、3…
…油、4……エポキシ樹脂、5……プラスチツク
ケース、6……圧電振動子、7……膨出部、8…
…開口部、9……反射材、10……充填接着剤、
11……リード線、12……マツチングトランス
、13……ケーブル、15……本体、16……開
口部、17……Oリング、18……係止部、19
……栓。

Claims (1)

    【実用新案登録請求の範囲】
  1. 一端に膨出部を有し、他端に開口部を有する耐
    水圧構造のプラスチツクケースの前記膨出部内側
    に圧電振動子を直接接着すると共に、前記開口部
    を電池等が収容された本体ケースの開口部にOリ
    ング又は環状のパツキングを介して水密状態を保
    つ様に接続せしめたことを特徴とする超音波水中
    通話器。
JP1987165442U 1987-10-30 1987-10-30 Pending JPH0170448U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987165442U JPH0170448U (ja) 1987-10-30 1987-10-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987165442U JPH0170448U (ja) 1987-10-30 1987-10-30

Publications (1)

Publication Number Publication Date
JPH0170448U true JPH0170448U (ja) 1989-05-10

Family

ID=31451932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987165442U Pending JPH0170448U (ja) 1987-10-30 1987-10-30

Country Status (1)

Country Link
JP (1) JPH0170448U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812492B1 (ja) * 1969-03-14 1973-04-20
JPS4955203A (ja) * 1972-09-28 1974-05-29

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812492B1 (ja) * 1969-03-14 1973-04-20
JPS4955203A (ja) * 1972-09-28 1974-05-29

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