GB1513371A - Sensor or detector element for an electrical hygrometer - Google Patents

Sensor or detector element for an electrical hygrometer

Info

Publication number
GB1513371A
GB1513371A GB2094474A GB2094474A GB1513371A GB 1513371 A GB1513371 A GB 1513371A GB 2094474 A GB2094474 A GB 2094474A GB 2094474 A GB2094474 A GB 2094474A GB 1513371 A GB1513371 A GB 1513371A
Authority
GB
United Kingdom
Prior art keywords
layer
sensor
film
detector element
hygroscopic
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.)
Expired
Application number
GB2094474A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2094474A priority Critical patent/GB1513371A/en
Publication of GB1513371A publication Critical patent/GB1513371A/en
Expired 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
    • G01N27/22—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

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  • 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)

Abstract

1513371 Humidity detectors P ROCKLIFF 7 Aug 1975 [11 May 1974] 20944/74 Heading G1N A sensor or detector element of the capacitance type for use in an electrical hygrometer comprises a substrate or base, e.g. of glass or ceramic material on which is formed three layers, a first and third layer constituting metal electrodes, e.g. of gold and interposed therebetween a two film layer, one film of the layer being non-hygroscopic e.g. of silicon monoxide and protecting the first layer from the second film which is of hygroscopic material e.g. calcium fluoride. The third layer is capable of permitting free passage of water molecules.
GB2094474A 1975-08-07 1975-08-07 Sensor or detector element for an electrical hygrometer Expired GB1513371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2094474A GB1513371A (en) 1975-08-07 1975-08-07 Sensor or detector element for an electrical hygrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2094474A GB1513371A (en) 1975-08-07 1975-08-07 Sensor or detector element for an electrical hygrometer

Publications (1)

Publication Number Publication Date
GB1513371A true GB1513371A (en) 1978-06-07

Family

ID=10154478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2094474A Expired GB1513371A (en) 1975-08-07 1975-08-07 Sensor or detector element for an electrical hygrometer

Country Status (1)

Country Link
GB (1) GB1513371A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054813A2 (en) * 1980-12-16 1982-06-30 Phoenix International Corp. A capacitance humidity sensor and a method for preparation thereof
EP0094266A2 (en) * 1982-05-11 1983-11-16 Direction De La Meteorologie Du Ministere Des Transports Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced
EP0317871A2 (en) * 1987-11-24 1989-05-31 Siemens Aktiengesellschaft Probe for detecting gases

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054813A2 (en) * 1980-12-16 1982-06-30 Phoenix International Corp. A capacitance humidity sensor and a method for preparation thereof
EP0054813A3 (en) * 1980-12-16 1984-07-25 Phoenix International Corp. A capacitance humidity sensor and a method for preparation thereof
EP0094266A2 (en) * 1982-05-11 1983-11-16 Direction De La Meteorologie Du Ministere Des Transports Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced
FR2526949A1 (en) * 1982-05-11 1983-11-18 Ministere Transports Direct Me METHOD FOR MANUFACTURING THIN FILM TYPE TEMPERATURE OR MOISTURE SENSOR AND SENSORS OBTAINED
EP0094266A3 (en) * 1982-05-11 1988-07-27 Mini Transport Meteorolog Method of making a temperature or a moisture sensor of the thin layer type, and sensor produced
EP0317871A2 (en) * 1987-11-24 1989-05-31 Siemens Aktiengesellschaft Probe for detecting gases
EP0317871A3 (en) * 1987-11-24 1991-03-06 Siemens Aktiengesellschaft Probe for detecting gases

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950806