JPH0196099U - - Google Patents

Info

Publication number
JPH0196099U
JPH0196099U JP1987189955U JP18995587U JPH0196099U JP H0196099 U JPH0196099 U JP H0196099U JP 1987189955 U JP1987189955 U JP 1987189955U JP 18995587 U JP18995587 U JP 18995587U JP H0196099 U JPH0196099 U JP H0196099U
Authority
JP
Japan
Prior art keywords
thermocouple
electromotive force
noise removal
removal filter
disconnection
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
JP1987189955U
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 JP1987189955U priority Critical patent/JPH0196099U/ja
Publication of JPH0196099U publication Critical patent/JPH0196099U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の実施例による熱電対断線検
出装置を示す回路図、第2図は断線判定回路のブ
ロツク図、第3図はフオトカプラの変形例を示す
斜視図である。 1は熱電対、3は第1のノイズフイルタ、4は
フオトカプラ、4a,13は発光素子、4b,1
4a,14bは光電素子、5,5′はスキヤナス
イツチ。

Claims (1)

    【実用新案登録請求の範囲】
  1. チヤンネル毎に別個独立に設けた熱電対の起電
    力を入力するノイズ除去用フイルタおよび発光素
    子の光に基づいて発生した起電力を高抵抗を介し
    て該ノイズ除去用フイルタに供給するフオトカプ
    ラと、前記ノイズ除去用フイルタの出力をチヤン
    ネル切換用のスキヤナスイツチを介して入力し予
    じめ記憶した前記熱電対の通常起電力と比較して
    該熱電対の断線を判定する断線判定回路と、各チ
    ヤンネルの発光素子を駆動する共通電源を備えた
    熱電対断線検出装置。
JP1987189955U 1987-12-16 1987-12-16 Pending JPH0196099U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987189955U JPH0196099U (ja) 1987-12-16 1987-12-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987189955U JPH0196099U (ja) 1987-12-16 1987-12-16

Publications (1)

Publication Number Publication Date
JPH0196099U true JPH0196099U (ja) 1989-06-26

Family

ID=31480961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987189955U Pending JPH0196099U (ja) 1987-12-16 1987-12-16

Country Status (1)

Country Link
JP (1) JPH0196099U (ja)

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