ES2048759T3 - Sensores de gases. - Google Patents

Sensores de gases.

Info

Publication number
ES2048759T3
ES2048759T3 ES88302842T ES88302842T ES2048759T3 ES 2048759 T3 ES2048759 T3 ES 2048759T3 ES 88302842 T ES88302842 T ES 88302842T ES 88302842 T ES88302842 T ES 88302842T ES 2048759 T3 ES2048759 T3 ES 2048759T3
Authority
ES
Spain
Prior art keywords
gas
sensor
gas sensors
polypyrol
microcomputer
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 - Lifetime
Application number
ES88302842T
Other languages
English (en)
Inventor
Peter Alfred Dept Inst A Payne
Jon Gillan Dept Inst Bartlett
Natalie Karen Harris
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.)
Cogent Ltd
Original Assignee
Cogent 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 Cogent Ltd filed Critical Cogent Ltd
Application granted granted Critical
Publication of ES2048759T3 publication Critical patent/ES2048759T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
    • G01N27/126—Composition of the body, e.g. the composition of its sensitive layer comprising organic polymers
    • 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)

Abstract

UN SENSOR DE GAS (30) TIENE UNA CAPA DE UN POLIMERO ORGANICO SEMICONDUCTOR, TAL COMO POLIPIRROL, QUE SE EXPONE A UN GAS PARA DETECTARLO. SE APLICA AL SENSOR UNA SEÑAL ELECTRICA ALTERNA DE FRECUENCIA VARIABLE MEDIANTE UN ANALIZADOR (32), QUE DETECTA EL CAMBIO DE LAS CARACTERISTICAS DE IMPEDANCIA DEL SENSOR (30). LAS CARACTERISTICAS OBTENIDAS SE COMPARAN MEDIANTE MICROORDENADOR (36) CON LAS CARACTERISTICAS DE REFERENCIA GUARDADAS EN UNA MEMORIA (38). LOS ESPECTROS DIFERENCIA RESULTANTES DEPENDEN DEL GAS EN CONTACTO CON EL SENSOR (30) Y DE ESTE MODO SE PUEDE DETECTAR EL GAS.
ES88302842T 1987-04-06 1988-03-30 Sensores de gases. Expired - Lifetime ES2048759T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878708201A GB8708201D0 (en) 1987-04-06 1987-04-06 Gas sensor

Publications (1)

Publication Number Publication Date
ES2048759T3 true ES2048759T3 (es) 1994-04-01

Family

ID=10615324

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88302842T Expired - Lifetime ES2048759T3 (es) 1987-04-06 1988-03-30 Sensores de gases.

Country Status (6)

Country Link
US (1) US4887455A (es)
EP (1) EP0286307B1 (es)
JP (1) JP2713972B2 (es)
DE (1) DE3885784T2 (es)
ES (1) ES2048759T3 (es)
GB (2) GB8708201D0 (es)

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DE60020823T2 (de) * 1999-03-09 2006-05-18 Osmetech Plc, Crewe Diagnostisches verfahren durch analyse von kondensierung aus atmungs gas
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US20040009585A1 (en) * 2001-02-21 2004-01-15 Venancio Everaldo Carlos Sensor for analysis of mixtures by global selectivity and its use in sensor system
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US10914698B2 (en) 2006-11-16 2021-02-09 General Electric Company Sensing method and system
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US9538657B2 (en) 2012-06-29 2017-01-03 General Electric Company Resonant sensor and an associated sensing method
JP4530034B2 (ja) * 2007-03-30 2010-08-25 株式会社イデアルスター ガスセンサー、そのための気体検知モジュール、およびこれらを用いた気体計測システム
FR2922310B1 (fr) * 2007-10-15 2012-05-11 Univ Pierre Et Marie Curie Paris Vi Transducteur a semi conducteurs,et son utilisation dans un capteur d'especes donneuses ou acceptrices d'electrons.
US8542023B2 (en) 2010-11-09 2013-09-24 General Electric Company Highly selective chemical and biological sensors
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US9119748B2 (en) * 2011-10-28 2015-09-01 Kimberly-Clark Worldwide, Inc. Electronic discriminating device for body exudate detection
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CN112782241A (zh) * 2019-11-08 2021-05-11 天津大学 一种可应用于室温高湿环境下的纳米硅传感器及其制备方法
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Also Published As

Publication number Publication date
GB2203553A (en) 1988-10-19
EP0286307A2 (en) 1988-10-12
GB8708201D0 (en) 1987-05-13
EP0286307A3 (en) 1990-08-08
US4887455A (en) 1989-12-19
DE3885784D1 (de) 1994-01-05
JPS6426138A (en) 1989-01-27
DE3885784T2 (de) 1994-05-19
EP0286307B1 (en) 1993-11-24
JP2713972B2 (ja) 1998-02-16
GB2203553B (en) 1990-09-19
GB8807618D0 (en) 1988-05-05

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