BE728278A - - Google Patents

Info

Publication number
BE728278A
BE728278A BE728278DA BE728278A BE 728278 A BE728278 A BE 728278A BE 728278D A BE728278D A BE 728278DA BE 728278 A BE728278 A BE 728278A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE728278A publication Critical patent/BE728278A/xx

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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

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)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
BE728278D 1968-03-21 1969-02-12 BE728278A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR144784 1968-03-21

Publications (1)

Publication Number Publication Date
BE728278A true BE728278A (ja) 1969-08-12

Family

ID=8647833

Family Applications (1)

Application Number Title Priority Date Filing Date
BE728278D BE728278A (ja) 1968-03-21 1969-02-12

Country Status (5)

Country Link
US (1) US3634757A (ja)
BE (1) BE728278A (ja)
DE (1) DE1914596A1 (ja)
FR (1) FR1579535A (ja)
GB (1) GB1237625A (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864959A (en) * 1971-12-16 1975-02-11 Pye Ltd Thermal conductivity detector apparatus
US3879985A (en) * 1972-07-11 1975-04-29 Christopher Gordon Maslen Detection and analysis of gases or vapours
US3913392A (en) * 1973-03-15 1975-10-21 Toyoda Chuo Kenkyusho Kk Physical quantity detecting circuit
US3848457A (en) * 1973-05-14 1974-11-19 Minnesota Mining & Mfg Gaseous fluid monitoring apparatus
GB1592506A (en) * 1976-12-15 1981-07-08 Consolidation Coal Co Electrical circuitry for detecting a combustible mixture of gas in a mine atmosphere
US4533846A (en) * 1979-01-24 1985-08-06 Xicor, Inc. Integrated circuit high voltage clamping systems
JPS57189289A (en) * 1981-05-15 1982-11-20 Toubishi Kogyo Kk Gas detection monitor
US4741198A (en) * 1986-10-06 1988-05-03 Beckman Industrial Corporation Thermal conductivity detector assembly
GB9024107D0 (en) * 1990-11-06 1990-12-19 Measurement Tech Ltd Power supply circuits
FR2940434B1 (fr) * 2008-12-19 2011-01-21 Commissariat Energie Atomique Dispositif de regulation d'un anemometre a fil
FR2940453B1 (fr) 2008-12-19 2011-03-25 Commissariat Energie Atomique Sonde anemometrique a fils en "x" et son procede de realisation
US9116160B2 (en) * 2009-11-25 2015-08-25 Siemens Aktiengesellschaft Method and arrangement for gas chromatographic analysis of a gas sample

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906941A (en) * 1958-06-10 1959-09-29 Bell Telephone Labor Inc Current supply apparatus
US3091957A (en) * 1959-10-14 1963-06-04 American Instr Co Inc Thermal conductivity bridge circuit
US3207984A (en) * 1960-11-18 1965-09-21 Gen Dynamics Corp Thermistor and diode bridge circuit for thermal compensation of a resistive load
US3278834A (en) * 1962-04-23 1966-10-11 Statham Instrument Inc Wheatstone bridge compensation circuits and transducers employing the same
US3495159A (en) * 1967-06-05 1970-02-10 Honeywell Inc Temperature compensation circuit for impedance bridges
US3535613A (en) * 1968-03-11 1970-10-20 Solid State Radiations Inc Compensated solid state voltage regulator circuit including transistors and a zener diode
US3440515A (en) * 1968-04-12 1969-04-22 Union Carbide Corp Shunt regulator battery charger

Also Published As

Publication number Publication date
GB1237625A (en) 1971-06-30
DE1914596A1 (de) 1969-10-02
US3634757A (en) 1972-01-11
FR1579535A (ja) 1969-08-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CHARBONNAGES DE FRANCE

Effective date: 19880228