JPS5989253U

JPS5989253U - electrochemical oxygen sensor

Info

Publication number: JPS5989253U
Application number: JP18470882U
Authority: JP
Inventors: 「たか」沢　壽佳; 重永　俊彦; 石地　徹
Original assignee: 日本電信電話株式会社; 理研計器株式会社
Priority date: 1982-12-08
Filing date: 1982-12-08
Publication date: 1984-06-16

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

[Brief explanation of the drawing]

第１図は従来の電気化学式酸素センサの一例を示す構成
説明図、第２図は従来のセンサの出力値のセンサ個体間
でのバラツキの一例を示す特性図、第３図は本考案の一
実施例の構成説明図、第４図は第３図の出力校正回路の
一例を示す回路構成図である。１・・・隔膜、２・・・陰極、３・・・陽極、４・・・
電解液、５・・・接続リード線、６・・・電解槽、７・
・・固定抵抗、８・・・サーミスタ、９・・・出力端子
、１０・・・酸素濃度指示計、１１・・・スパン調整端
子、１２・・・出力校正回路、１３・・・気密容器、１
４・・・４芯ケーブル、１５・・・可変抵抗調整用端子
、１６・・・センサ出力調整孔、１７・・・気密枠、Ｒ
□・・・固定抵抗、Ａ□・・・可変抵抗、ｃｌ、　ｃ２
．　ｃ３・・・コンデンサ、ｖ＋、ｖ−−−−駆動電力
端子、ＧＮＤ・・・アース端子、Ｔｉ・・・接続端子、
Ｔｏ・・・出力端子。５ぼ −′Ｉ８゜ □２．１ノぞンＭｆｚ力着７ｍｖ２Ｊ（１Fig. 1 is a configuration explanatory diagram showing an example of a conventional electrochemical oxygen sensor, Fig. 2 is a characteristic diagram showing an example of variations in the output value of a conventional sensor between individual sensors, and Fig. 3 is a diagram showing an example of the variation in the output value of a conventional sensor. FIG. 4 is a circuit diagram showing an example of the output calibration circuit of FIG. 3. 1... Diaphragm, 2... Cathode, 3... Anode, 4...
Electrolyte solution, 5... Connection lead wire, 6... Electrolytic tank, 7.
...Fixed resistance, 8...Thermistor, 9...Output terminal, 10...Oxygen concentration indicator, 11...Span adjustment terminal, 12...Output calibration circuit, 13...Airtight container, 1
4...4-core cable, 15...variable resistance adjustment terminal, 16...sensor output adjustment hole, 17...airtight frame, R
□・・・Fixed resistance, A□・・・Variable resistance, cl, c2
．． c3... Capacitor, v+, v---- drive power terminal, GND... Earth terminal, Ti... Connection terminal,
To...output terminal. 5bo-'I8゜□2.1-noson Mfz force fitting 7mv 2J (1

Claims

[Scope of utility model registration request]

An electrolytic solution is filled in an electrolytic cell whose opening is closed with a diaphragm that allows only gas to pass through. An anode and a cathode are installed in this electrolytic cell, and the galvanic current flowing between the anode and cathode is fixed. In an electrochemical oxygen sensor that measures the oxygen concentration in a gas or liquid in contact with a diaphragm by extracting a voltage output across a resistor and using this voltage value, an airtight container is provided integrally with the electrolytic cell, and the inside of this airtight container is An electrochemical oxygen sensor comprising: a built-in output calibration circuit for calibrating the voltage output taken out from both ends of the fixed resistor.