JPH041417U - - Google Patents

Info

Publication number
JPH041417U
JPH041417U JP4150790U JP4150790U JPH041417U JP H041417 U JPH041417 U JP H041417U JP 4150790 U JP4150790 U JP 4150790U JP 4150790 U JP4150790 U JP 4150790U JP H041417 U JPH041417 U JP H041417U
Authority
JP
Japan
Prior art keywords
electrode
level detection
liquid level
liquid
capacitor
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.)
Granted
Application number
JP4150790U
Other languages
English (en)
Other versions
JP2546314Y2 (ja
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 JP1990041507U priority Critical patent/JP2546314Y2/ja
Publication of JPH041417U publication Critical patent/JPH041417U/ja
Application granted granted Critical
Publication of JP2546314Y2 publication Critical patent/JP2546314Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る液面検出装置の概略的構
成図、第２図は液面検出装置を構成する電気回路
図、第３図は第２図の電気回路図の一構成部とな
る発振回路における出力波形とバイアス関係を示
す波形図である。 Ａ……容器、ａ……液面検出用電極、ｂ……他
方の電極、ＩＣ１……発振器。

Claims (1)

  1. 【実用新案登録請求の範囲】 液体を収容する金属製容器内に設けた液面検出
    用電極と、他方の電極となる前記金属製容器とに
    直流電源を印加し、この両電極の間の静電容量を
    検出して液体の有無を検知するようにした液面検
    知装置において、 前記両電極間が液体で結合されていると発振状
    態にある発振回路を設け、この発振器の入力端子
    の一方に基準電圧を与え、他方にコンデンサーを
    介して前記液面検出用電極を接続する一方、前記
    発振回路の出力電圧の振幅の中間電圧を、金属製
    容器である他方電極に印加し、液体を介して静電
    容量結合関係にある両電極間に前記コンデンサー
    への充電電流を交互に流し、電極部のスケール付
    着を防止するようにしたことを特徴とする液面検
    知装置。
JP1990041507U 1990-04-20 1990-04-20 液面検知装置 Expired - Lifetime JP2546314Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990041507U JP2546314Y2 (ja) 1990-04-20 1990-04-20 液面検知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990041507U JP2546314Y2 (ja) 1990-04-20 1990-04-20 液面検知装置

Publications (2)

Publication Number Publication Date
JPH041417U true JPH041417U (ja) 1992-01-08
JP2546314Y2 JP2546314Y2 (ja) 1997-08-27

Family

ID=31552235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990041507U Expired - Lifetime JP2546314Y2 (ja) 1990-04-20 1990-04-20 液面検知装置

Country Status (1)

Country Link
JP (1) JP2546314Y2 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5112972A (ja) * 1974-07-19 1976-01-31 Matsushita Electric Ind Co Ltd Handomikisaa
JPS5178291U (ja) * 1974-12-17 1976-06-21
JPS5178290U (ja) * 1974-12-17 1976-06-21
JPS55291U (ja) * 1979-06-14 1980-01-05

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941155U (ja) * 1972-07-12 1974-04-11
JPS57168169A (en) * 1981-04-10 1982-10-16 Nissan Motor Co Ltd Electrostatic capacitance detector
JPS61102922U (ja) * 1984-12-13 1986-07-01

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941155U (ja) * 1972-07-12 1974-04-11
JPS57168169A (en) * 1981-04-10 1982-10-16 Nissan Motor Co Ltd Electrostatic capacitance detector
JPS61102922U (ja) * 1984-12-13 1986-07-01

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5112972A (ja) * 1974-07-19 1976-01-31 Matsushita Electric Ind Co Ltd Handomikisaa
JPS5178291U (ja) * 1974-12-17 1976-06-21
JPS5178290U (ja) * 1974-12-17 1976-06-21
JPS5420477Y2 (ja) * 1974-12-17 1979-07-24
JPS55291U (ja) * 1979-06-14 1980-01-05
JPS5534025Y2 (ja) * 1979-06-14 1980-08-12

Also Published As

Publication number Publication date
JP2546314Y2 (ja) 1997-08-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term