GB1579701A - Sensor for selectively detecting a constituent of a gaseous medium - Google Patents

Sensor for selectively detecting a constituent of a gaseous medium Download PDF

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Publication number
GB1579701A
GB1579701A GB6186/77A GB618677A GB1579701A GB 1579701 A GB1579701 A GB 1579701A GB 6186/77 A GB6186/77 A GB 6186/77A GB 618677 A GB618677 A GB 618677A GB 1579701 A GB1579701 A GB 1579701A
Authority
GB
United Kingdom
Prior art keywords
layer
sensor
electrode
semiconductor
dielectric
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
GB6186/77A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1579701A publication Critical patent/GB1579701A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12Investigating 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
    • G01N27/128Microapparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
GB6186/77A 1976-02-18 1977-02-15 Sensor for selectively detecting a constituent of a gaseous medium Expired GB1579701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7604428A FR2341859A1 (fr) 1976-02-18 1976-02-18 Sonde pour la detection selective de vapeurs, notamment pour la detection de la vapeur d'eau

Publications (1)

Publication Number Publication Date
GB1579701A true GB1579701A (en) 1980-11-19

Family

ID=9169261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6186/77A Expired GB1579701A (en) 1976-02-18 1977-02-15 Sensor for selectively detecting a constituent of a gaseous medium

Country Status (5)

Country Link
US (1) US4140990A (enExample)
JP (1) JPS52100296A (enExample)
DE (1) DE2706070C2 (enExample)
FR (1) FR2341859A1 (enExample)
GB (1) GB1579701A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138946A (en) * 1983-04-12 1984-10-31 Endress Hauser Gmbh Co Thin-film humidity sensor and method for the production therefor

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302530A (en) * 1977-12-08 1981-11-24 University Of Pennsylvania Method for making substance-sensitive electrical structures by processing substance-sensitive photoresist material
DE2908916C2 (de) * 1979-03-07 1986-09-04 Robert Bosch Gmbh, 7000 Stuttgart Widerstandsmeßfühler zur Erfassung des Sauerstoffgehaltes in Gasen, insbesondere in Abgasen von Verbrennungsmotoren und Verfahren zur Herstellung derselben
SE434438B (sv) * 1980-02-21 1984-07-23 Gambro Engstrom Ab Anordning for detektering av forekomsten av en given gaskomponent i en gasblandning
US4455530A (en) * 1982-03-30 1984-06-19 Westinghouse Electric Corp. Conductivity sensor for use in steam turbines
JPS6050446A (ja) * 1983-08-31 1985-03-20 Nohmi Bosai Kogyo Co Ltd ガス検出素子とその製造方法
JPS6082954A (ja) * 1983-10-14 1985-05-11 Nohmi Bosai Kogyo Co Ltd ガス検出素子とその製造方法
US4795968A (en) * 1986-06-30 1989-01-03 Sri International Gas detection method and apparatus using chemisorption and/or physisorption
US4780664A (en) * 1986-10-10 1988-10-25 Frank Asuini Corrosion sensor for measuring the corrosion loss and the instantaneous corrosion rate
GB8708201D0 (en) * 1987-04-06 1987-05-13 Cogent Ltd Gas sensor
US4900405A (en) * 1987-07-15 1990-02-13 Sri International Surface type microelectronic gas and vapor sensor
US4858063A (en) * 1987-12-31 1989-08-15 California Institute Of Technology Spiral configuration of electrodes and dielectric material for sensing an environmental property
WO1990015323A1 (en) * 1989-06-02 1990-12-13 Sri International Surface type microelectronic gas and vapor sensor
US5748002A (en) * 1996-01-26 1998-05-05 Phase Dynamics Inc. RF probe for montoring composition of substances
AU7552194A (en) * 1993-07-26 1995-02-20 Phase Dynamics, Inc. System and method for monitoring substances and reactions
US6630833B2 (en) * 1994-07-26 2003-10-07 Phase Dynamics, Inc. Measurement by concentration of a material within a structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223609A (en) * 1961-10-30 1965-12-14 Beckman Instruments Inc Hygrometer
US3954590A (en) * 1972-08-18 1976-05-04 E. I. Du Pont De Nemours And Company Iridium thin ribbon electrodes for electrochemical cells
DE2407110C3 (de) * 1974-02-14 1981-04-23 Siemens AG, 1000 Berlin und 8000 München Sensor zum Nachweis einer in einem Gas oder einer Flüssigkeit einthaltenen Substanz
FR2273275B1 (enExample) * 1974-05-27 1977-03-11 Radiotechnique Compelec

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138946A (en) * 1983-04-12 1984-10-31 Endress Hauser Gmbh Co Thin-film humidity sensor and method for the production therefor

Also Published As

Publication number Publication date
US4140990A (en) 1979-02-20
DE2706070A1 (de) 1977-08-25
JPS52100296A (en) 1977-08-23
DE2706070C2 (de) 1985-02-21
FR2341859B1 (enExample) 1978-10-13
FR2341859A1 (fr) 1977-09-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee