JPS6041828U

JPS6041828U - Liquid level sensor device

Info

Publication number: JPS6041828U
Application number: JP13417383U
Authority: JP
Inventors: 島崎　勝康; 萩　二三男
Original assignee: カルソニックカンセイ株式会社
Priority date: 1983-08-30
Filing date: 1983-08-30
Publication date: 1985-03-25

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図は従来の液加センサの断面図、第２図は同じくそ
の液面検出回路図、第３図は本考案による液面センサの
断面図、第４図は同じくその液面検出回路図である。１５・・・第２の電極、１７・・・第１の電極、１８・
・・交流電源、２０・・・第１の抵抗、２１・・・第２
の抵抗、２４・・・比較器、２５・・・検波回路。Fig. 1 is a sectional view of a conventional liquid addition sensor, Fig. 2 is a liquid level detection circuit diagram thereof, Fig. 3 is a sectional view of a liquid level sensor according to the present invention, and Fig. 4 is a liquid level detection circuit diagram thereof. It is. 15... second electrode, 17... first electrode, 18.
...AC power supply, 20...first resistor, 21...second
resistance, 24... comparator, 25... detection circuit.

Claims

[Scope of utility model registration request]

a first electrode connected to an AC power source via a first resistor;
A second electrode provided around the first electrode via an insulating material and grounded via a second resistor, a comparator for comparing the terminal voltages of both of the resistors, and an output of this comparator. and a detection circuit that detects a wave, and different levels of detection output can be obtained when both the electrodes are in a non-conducting state and short-circuited state and when the first electrode is grounded via the coolant. A liquid level sensor device configured as follows.