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FR2451029A1 - Detecteur de gaz a semi-conducteur et chauffage regule - Google Patents

Detecteur de gaz a semi-conducteur et chauffage regule

Info

Publication number
FR2451029A1
FR2451029A1 FR8005265A FR8005265A FR2451029A1 FR 2451029 A1 FR2451029 A1 FR 2451029A1 FR 8005265 A FR8005265 A FR 8005265A FR 8005265 A FR8005265 A FR 8005265A FR 2451029 A1 FR2451029 A1 FR 2451029A1
Authority
FR
France
Prior art keywords
gas detector
semiconductor gas
regulated heating
heating
regulated
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.)
Withdrawn
Application number
FR8005265A
Other languages
English (en)
French (fr)
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of FR2451029A1 publication Critical patent/FR2451029A1/fr
Withdrawn legal-status Critical Current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
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Control Of Resistance Heating (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR8005265A 1979-03-07 1980-03-05 Detecteur de gaz a semi-conducteur et chauffage regule Withdrawn FR2451029A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2908911 1979-03-07

Publications (1)

Publication Number Publication Date
FR2451029A1 true FR2451029A1 (fr) 1980-10-03

Family

ID=6064729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005265A Withdrawn FR2451029A1 (fr) 1979-03-07 1980-03-05 Detecteur de gaz a semi-conducteur et chauffage regule

Country Status (5)

Country Link
JP (1) JPS55143435A (nl)
FR (1) FR2451029A1 (nl)
GB (1) GB2044491A (nl)
NL (1) NL7908932A (nl)
SE (1) SE7910424L (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431373A1 (de) * 1984-08-25 1986-03-06 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Schadstoffsensor fuer kraftfahrzeuge, arbeitsschutzkabinen usw.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467182A (en) * 1981-09-16 1984-08-21 Nordson Corporation Control circuit
WO1987000634A1 (en) * 1985-07-19 1987-01-29 Hoelter Heinz Process for detecting toxic matter in air which enters a cabin o r similar enclosure where persons are present
EP0354486A3 (de) * 1988-08-12 1990-08-01 E.T.R. Elektronik Technologie Rump Gmbh Vorrichtung zur Durchführung eines Verfahrens zum Zwecke der Identifizierung und Quantifizierung unbekannter gasförmiger Substanzen
US5886614A (en) * 1997-04-11 1999-03-23 General Motors Corporation Thin film hydrogen sensor
US20060199271A1 (en) * 2005-03-07 2006-09-07 Ming-Ren Lian Temperature feedback control for solid state gas sensors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431373A1 (de) * 1984-08-25 1986-03-06 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Schadstoffsensor fuer kraftfahrzeuge, arbeitsschutzkabinen usw.

Also Published As

Publication number Publication date
NL7908932A (nl) 1980-09-09
JPS55143435A (en) 1980-11-08
SE7910424L (sv) 1980-09-08
GB2044491A (en) 1980-10-15

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Legal Events

Date Code Title Description
RE Withdrawal of published application