AT315531B - Measuring circuit for capacitive hygrometers - Google Patents

Measuring circuit for capacitive hygrometers

Info

Publication number
AT315531B
AT315531B AT26372A AT26372A AT315531B AT 315531 B AT315531 B AT 315531B AT 26372 A AT26372 A AT 26372A AT 26372 A AT26372 A AT 26372A AT 315531 B AT315531 B AT 315531B
Authority
AT
Austria
Prior art keywords
measuring circuit
hygrometers
capacitive
capacitive hygrometers
measuring
Prior art date
Application number
AT26372A
Other languages
German (de)
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of AT315531B publication Critical patent/AT315531B/en

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
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • 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
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • G01N27/225—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials

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 Electric Means (AREA)
AT26372A 1971-01-14 1972-01-13 Measuring circuit for capacitive hygrometers AT315531B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101591 DE2101591A1 (en) 1971-01-14 1971-01-14 Measuring circuit for capacitive hygrometers

Publications (1)

Publication Number Publication Date
AT315531B true AT315531B (en) 1974-05-27

Family

ID=5795881

Family Applications (1)

Application Number Title Priority Date Filing Date
AT26372A AT315531B (en) 1971-01-14 1972-01-13 Measuring circuit for capacitive hygrometers

Country Status (3)

Country Link
AT (1) AT315531B (en)
CH (1) CH532787A (en)
DE (1) DE2101591A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623536B2 (en) * 1973-01-22 1981-06-01
WO1980002600A1 (en) * 1979-05-22 1980-11-27 S Dahlqvist A device for detecting and measuring small capacitance variations
DE102014219132A1 (en) * 2014-09-23 2016-03-24 Robert Bosch Gmbh Device for analyzing the exhaled air with a gas sensor device

Also Published As

Publication number Publication date
DE2101591A1 (en) 1972-07-27
CH532787A (en) 1973-01-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee