JPS58120970U - resistance measuring device - Google Patents

resistance measuring device

Info

Publication number
JPS58120970U
JPS58120970U JP1653782U JP1653782U JPS58120970U JP S58120970 U JPS58120970 U JP S58120970U JP 1653782 U JP1653782 U JP 1653782U JP 1653782 U JP1653782 U JP 1653782U JP S58120970 U JPS58120970 U JP S58120970U
Authority
JP
Japan
Prior art keywords
voltage
measurement
terminal
resistance
operational amplifier
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
JP1653782U
Other languages
Japanese (ja)
Inventor
敏秋 塚田
Original Assignee
横河電機株式会社
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 横河電機株式会社 filed Critical 横河電機株式会社
Priority to JP1653782U priority Critical patent/JPS58120970U/en
Publication of JPS58120970U publication Critical patent/JPS58120970U/en
Pending legal-status Critical Current

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  • Measurement Of Resistance Or Impedance (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 drawings]

第１図は従来の抵抗測定装置の一例の接続図、第２図は
本考案に係る抵抗測定装置の一実施例の接続図である。 Ａ・・・演算増幅器、Ｓ・・・スイッチ、Ｈ，Ｌ・・・
測定端子、Ｒｘ・・・被測定抵抗、Ｄｚ・・・ツェナー
ダイオード。FIG. 1 is a connection diagram of an example of a conventional resistance measurement device, and FIG. 2 is a connection diagram of an embodiment of a resistance measurement device according to the present invention. A...Operation amplifier, S...Switch, H, L...
Measurement terminal, Rx... resistance to be measured, Dz... Zener diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 演算増幅器の入力端子に接続された基準抵抗と帰還回路
に設けられた測定端子Ｈ，Ｌに接続された被測定抵抗を
有し、基準電圧を前記基準抵抗に加え、前記演算増幅器
の出力端子側に設けた測定端子りに被測定抵抗に対応し
た電圧を得るようにした抵抗−電圧変換回路と、前記測
定端子Ｈ，Ｌ間に接続されるツェナーダイオードと、前
記測定端子Ｈ，Ｌに切換接続される切換スイッチとを具
備し、高抵抗測定時において前記ツェナーダイオードが
降伏している時に前記端子Ｈより演算増幅器Ａのオフセ
ット電圧を得、前記測定端子りより取り出される電圧か
ら前記オフセット電圧を差引いた電圧を表示回路で表示
させるようにした抵抗測定装置。It has a reference resistor connected to the input terminal of the operational amplifier and a resistor to be measured connected to the measurement terminals H and L provided in the feedback circuit, and a reference voltage is applied to the reference resistor, and the output terminal side of the operational amplifier is a resistance-voltage conversion circuit configured to obtain a voltage corresponding to the resistance to be measured at the measurement terminal provided at the measurement terminal; a Zener diode connected between the measurement terminals H and L; and a switchable connection to the measurement terminals H and L. and a changeover switch that obtains the offset voltage of the operational amplifier A from the terminal H when the Zener diode breaks down during high resistance measurement, and subtracts the offset voltage from the voltage taken out from the measurement terminal. A resistance measuring device that displays the measured voltage on a display circuit.
JP1653782U 1982-02-09 1982-02-09 resistance measuring device Pending JPS58120970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1653782U JPS58120970U (en) 1982-02-09 1982-02-09 resistance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1653782U JPS58120970U (en) 1982-02-09 1982-02-09 resistance measuring device

Publications (1)

Publication Number Publication Date
JPS58120970U true JPS58120970U (en) 1983-08-17

Family

ID=30028899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1653782U Pending JPS58120970U (en) 1982-02-09 1982-02-09 resistance measuring device

Country Status (1)

Country Link
JP (1) JPS58120970U (en)

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