JPH0241155U - - Google Patents

Info

Publication number
JPH0241155U
JPH0241155U JP11883588U JP11883588U JPH0241155U JP H0241155 U JPH0241155 U JP H0241155U JP 11883588 U JP11883588 U JP 11883588U JP 11883588 U JP11883588 U JP 11883588U JP H0241155 U JPH0241155 U JP H0241155U
Authority
JP
Japan
Prior art keywords
pair
electrodes
charging
pulse signal
temperature characteristic
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
JP11883588U
Other languages
English (en)
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 JP11883588U priority Critical patent/JPH0241155U/ja
Publication of JPH0241155U publication Critical patent/JPH0241155U/ja
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す構成図、第2
図は同上実施例の電気回路図、第3図は同上実施
例に適用したサーミスタの温度特性図、第4図は
電極間の静電容量の温度特性図、第5図はセンサ
出力周波数とアルコール濃度との関係を示す図、
第6図は従来の燃温補正機能付アルコール濃度セ
ンサを示す図、第7図は従来の温度補正値と燃料
温度との関係を示す図である。 1……燃料配管、11,12……電極、13…
…サーミスタ、15……発振回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. アルコール混合液体中に浸される一対の電極と
    、該一対の電極間の充放電を電極間電圧に基づい
    て繰返し制御し、前記一対の電極間の静電容量変
    化に応じた前記充放電電流を所定周波数のパルス
    信号に変換して出力する回路とを設けると共に、
    前記一対の電極の近傍のアルコール混合液体中に
    、液体温度に応じて変化する電極間静電容量の温
    度特性を相殺する温度特性を持つた回路素子を配
    置して前記一対の電極に接続し、アルコール濃度
    を前記パルス信号の周波数として取出すよう構成
    したことを特徴とするアルコール濃度センサ。
JP11883588U 1988-09-12 1988-09-12 Pending JPH0241155U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11883588U JPH0241155U (ja) 1988-09-12 1988-09-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11883588U JPH0241155U (ja) 1988-09-12 1988-09-12

Publications (1)

Publication Number Publication Date
JPH0241155U true JPH0241155U (ja) 1990-03-22

Family

ID=31363531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11883588U Pending JPH0241155U (ja) 1988-09-12 1988-09-12

Country Status (1)

Country Link
JP (1) JPH0241155U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698540A (en) * 1980-01-07 1981-08-08 Hitachi Ltd Alcohol sensor and method of controlling operation of internal combustion engine using alcohol sensor
JPS6161047A (ja) * 1984-09-03 1986-03-28 Yamatake Honeywell Co Ltd 温度計測発振回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698540A (en) * 1980-01-07 1981-08-08 Hitachi Ltd Alcohol sensor and method of controlling operation of internal combustion engine using alcohol sensor
JPS6161047A (ja) * 1984-09-03 1986-03-28 Yamatake Honeywell Co Ltd 温度計測発振回路

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