JPS61104246A - 湿度検出回路 - Google Patents

湿度検出回路

Info

Publication number
JPS61104246A
JPS61104246A JP22403184A JP22403184A JPS61104246A JP S61104246 A JPS61104246 A JP S61104246A JP 22403184 A JP22403184 A JP 22403184A JP 22403184 A JP22403184 A JP 22403184A JP S61104246 A JPS61104246 A JP S61104246A
Authority
JP
Japan
Prior art keywords
humidity sensor
humidity
capacitor
detection circuit
resistance value
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
JP22403184A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0410982B2 (de
Inventor
Toru Sugawara
徹 菅原
Shigeki Tsuchiya
茂樹 土谷
Shuichi Ohara
大原　周一
Tokuyuki Kaneshiro
徳幸 金城
Teruo Tsunoda
角田　照夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22403184A priority Critical patent/JPS61104246A/ja
Publication of JPS61104246A publication Critical patent/JPS61104246A/ja
Publication of JPH0410982B2 publication Critical patent/JPH0410982B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP22403184A 1984-10-26 1984-10-26 湿度検出回路 Granted JPS61104246A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22403184A JPS61104246A (ja) 1984-10-26 1984-10-26 湿度検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22403184A JPS61104246A (ja) 1984-10-26 1984-10-26 湿度検出回路

Publications (2)

Publication Number Publication Date
JPS61104246A true JPS61104246A (ja) 1986-05-22
JPH0410982B2 JPH0410982B2 (de) 1992-02-27

Family

ID=16807505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22403184A Granted JPS61104246A (ja) 1984-10-26 1984-10-26 湿度検出回路

Country Status (1)

Country Link
JP (1) JPS61104246A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280545A (ja) * 1985-10-04 1987-04-14 Nittan Co Ltd 環境異常検出回路
EP0397584A2 (de) * 1989-05-12 1990-11-14 TDK Corporation Feuchtigkeitsmessgerät
WO1998012547A1 (de) * 1996-09-19 1998-03-26 Robert Bosch Gmbh Vorrichtung zur luftgütemessung
CN104270114A (zh) * 2014-09-03 2015-01-07 华南理工大学 一种采用小电容大电阻的多谐振荡器电路
WO2017002221A1 (ja) * 2015-06-30 2017-01-05 株式会社日立製作所 電流計測システムおよび方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280545A (ja) * 1985-10-04 1987-04-14 Nittan Co Ltd 環境異常検出回路
EP0397584A2 (de) * 1989-05-12 1990-11-14 TDK Corporation Feuchtigkeitsmessgerät
WO1998012547A1 (de) * 1996-09-19 1998-03-26 Robert Bosch Gmbh Vorrichtung zur luftgütemessung
AU714083B2 (en) * 1996-09-19 1999-12-16 Paragon Ag Air quality measuring device
US6055848A (en) * 1996-09-19 2000-05-02 Robert Bosch Gmbh Air quality measuring device
KR100518104B1 (ko) * 1996-09-19 2005-10-04 파라곤 아게 공기질 측정장치
CN104270114A (zh) * 2014-09-03 2015-01-07 华南理工大学 一种采用小电容大电阻的多谐振荡器电路
WO2017002221A1 (ja) * 2015-06-30 2017-01-05 株式会社日立製作所 電流計測システムおよび方法
JPWO2017002221A1 (ja) * 2015-06-30 2018-02-08 株式会社日立製作所 電流計測システムおよび方法

Also Published As

Publication number Publication date
JPH0410982B2 (de) 1992-02-27

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