JPS6088231U

JPS6088231U - Ultrasonic liquid level sensor

Info

Publication number: JPS6088231U
Application number: JP18126083U
Authority: JP
Inventors: 大矢　寛二; 祖父江　英夫
Original assignee: 日本特殊陶業株式会社
Priority date: 1983-11-22
Filing date: 1983-11-22
Publication date: 1985-06-17

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 drawings]

第１図は超音波を利用して液面レベルを検出する従来装
置を説明するために挙げた概略図、第２図は本案の一実
施例による液面レベルセンサをタンクに取付けた態様を
示し、Ａは縦断正面図、ＢはＡ図イーイに沿って断面と
した平面図、第３図は本案の動作を説明するために挙げ
た概略図、Ａは液面が所定レベルライン以上にある状態
、Ｂは液面が所定レベルライン以下にある状態を示す。第４図は本案の液面レベルセンサの要部を示す縦断正面
図である。１・・・・・・栓体、２・・・・・・超音波送波器、２
１ａ・・・・・・送波面、３・・・・・・超音波受波器
、３１ａ・・・・・・受波面、４・・・・・・支柱、１
・・・・・・液体、１□・・・・・・液面、１２・・・
・・・レベルライン、ｔ・・・・・・タンク、Ｓ・・・
・・・センサ取付は用部材、ＳＰ・・・・・・レベルセ
ンサ。Fig. 1 is a schematic diagram used to explain a conventional device that detects liquid level using ultrasonic waves, and Fig. 2 shows a liquid level sensor according to an embodiment of the present invention installed in a tank. , A is a vertical sectional front view, B is a plan view taken in section along the line A, FIG. 3 is a schematic diagram used to explain the operation of the present invention, and A is a state in which the liquid level is above the predetermined level line. , B indicates a state in which the liquid level is below a predetermined level line. FIG. 4 is a longitudinal sectional front view showing the main parts of the liquid level sensor of the present invention. 1... Plug body, 2... Ultrasonic wave transmitter, 2
1a... Wave transmitting surface, 3... Ultrasonic wave receiver, 31a... Wave receiving surface, 4... Support column, 1
...Liquid, 1□...Liquid level, 12...
...Level line, t...Tank, S...
・・・Sensor installation is required, SP...level sensor.

Claims

[Scope of utility model registration request]

The sensor is mounted on the bottom wall of a tank containing a liquid using a waterproof structure that emits ultrasonic pulses to a stopper that fits liquid-tightly to a member and a support that is installed upright on the stopper. A wave transmitter and an ultrasonic receiver, which also has a waterproof structure and generates an electrical signal in response to the emitted ultrasonic pulses, are held so that their wave transmitting surfaces and wave receiving surfaces face each other with a predetermined distance apart. An ultrasonic liquid level sensor characterized in that either the ultrasonic transmitter or the ultrasonic receiver is eccentric with respect to the other.