JPS5756744A - Hygrometer - Google Patents

Hygrometer

Info

Publication number
JPS5756744A
JPS5756744A JP13152280A JP13152280A JPS5756744A JP S5756744 A JPS5756744 A JP S5756744A JP 13152280 A JP13152280 A JP 13152280A JP 13152280 A JP13152280 A JP 13152280A JP S5756744 A JPS5756744 A JP S5756744A
Authority
JP
Japan
Prior art keywords
humidity
temperature
electric resistance
elements
lead wires
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
JP13152280A
Other languages
Japanese (ja)
Inventor
Nanao Nakamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13152280A priority Critical patent/JPS5756744A/en
Publication of JPS5756744A publication Critical patent/JPS5756744A/en
Pending 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
    • G01N27/045—Circuits
    • G01N27/046—Circuits provided with temperature compensation

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 Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

PURPOSE:To measure the humidity detecting only varying portion of the humidity, by canceling the varying portion caused by a temperature of electric resistance of an element at a hygrometer using a himidity sensitive element varying the electric resistance with the humidity and temperature. CONSTITUTION:Humidity sensitive elements 22-25 are provided on a substrate made of alumina 21. The elements 22-25 have the same electric resistance under the same temperature and humidity. The element 22 is bared and its electric resistance is varied with variations of the temperature and humidity. The elements 23- 25 are covered with a polyvinyl chloride resin 26 and are not affected by the variation of himidity and also, are affected by only the variation of temperature. The elements 22-25 are connected with lead wires 27-30 and a Wheatstone bridge is formed. An alternating current power source 31 is connected between a lead wires 27 and 28 and a coil 32 is connected between a lead wires 29 and 30. By such a construction, the measured value of the humidity is obtained by the output amplified by an amplifier 34 and detected by a detector 35 without carrying out temperature correction.
JP13152280A 1980-09-24 1980-09-24 Hygrometer Pending JPS5756744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13152280A JPS5756744A (en) 1980-09-24 1980-09-24 Hygrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13152280A JPS5756744A (en) 1980-09-24 1980-09-24 Hygrometer

Publications (1)

Publication Number Publication Date
JPS5756744A true JPS5756744A (en) 1982-04-05

Family

ID=15060017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13152280A Pending JPS5756744A (en) 1980-09-24 1980-09-24 Hygrometer

Country Status (1)

Country Link
JP (1) JPS5756744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106093134A (en) * 2016-05-31 2016-11-09 重庆大学 The compensation method of metal oxide sensor array response drift

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106093134A (en) * 2016-05-31 2016-11-09 重庆大学 The compensation method of metal oxide sensor array response drift

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