GB754087A - Improvements in electrical vapour detectors - Google Patents

Improvements in electrical vapour detectors

Info

Publication number
GB754087A
GB754087A GB34222/54A GB3422254A GB754087A GB 754087 A GB754087 A GB 754087A GB 34222/54 A GB34222/54 A GB 34222/54A GB 3422254 A GB3422254 A GB 3422254A GB 754087 A GB754087 A GB 754087A
Authority
GB
United Kingdom
Prior art keywords
former
gas
conductivity
hydrogen
electrode
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
GB34222/54A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB754087A publication Critical patent/GB754087A/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
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/68—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas
    • G01N27/70—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
    • 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
    • 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
    • G01N27/121—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 for determining moisture content, e.g. humidity, of the fluid

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

754,087. Determining physical qualities of materials. GENERAL ELECTRIC CO., Ltd. Nov. 25, 1954 [Dec. 24, 1953], No. 34222/54. Class 37. Apparatus for detecting the presence of a gas having hydrogen as a constituent comprises means for bringing the gas into contact with a positively charged, heated electrode comprising a filament 3 (Fig. 1) wound on a ceramic former 1 impregnated with a salt of high electrolytic conductivity, e.g. sodium hydroxide, associated with a negatively charged electrode 2 inserted into tight-fitting holes in the former 1 and supported by arms 4 from a cylinder 5, so that the hydrogen ion content of the gas causes a change in conductivity in the former 1 which is indi. cated by corresponding changes in the interelectrode current, indicated by a meter 11. Specification 648,367 is referred to.
GB34222/54A 1953-12-24 1954-11-25 Improvements in electrical vapour detectors Expired GB754087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400339A US2806991A (en) 1953-12-24 1953-12-24 Electrical vapor detector

Publications (1)

Publication Number Publication Date
GB754087A true GB754087A (en) 1956-08-01

Family

ID=23583209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34222/54A Expired GB754087A (en) 1953-12-24 1954-11-25 Improvements in electrical vapour detectors

Country Status (4)

Country Link
US (1) US2806991A (en)
BE (1) BE534288A (en)
FR (1) FR1115861A (en)
GB (1) GB754087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631436A (en) * 1970-07-14 1971-12-28 Naoyoshi Taguchi Gas-detecting device

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039025A (en) * 1954-08-20 1962-06-12 Gen Electric Humidity sensitive device
GB808078A (en) * 1955-12-12 1959-01-28 Plessey Co Ltd Improvements in or relating to the measurement of moisture
US2934693A (en) * 1957-09-09 1960-04-26 Phillips Petroleum Co Water analyzer
US3053515A (en) * 1958-07-21 1962-09-11 George V Woodling Temperature and moisture control devices
US3085198A (en) * 1959-02-17 1963-04-09 Gen Electric Combination leak detector and vacuum gauge
US3299387A (en) * 1964-12-23 1967-01-17 Gen Electric Humidity-sensitive resistor
US3430486A (en) * 1967-07-31 1969-03-04 Lorenzo A Richards Membrane-shield for soil hygrometer
US3625756A (en) * 1969-01-21 1971-12-07 Naoyoshi Taguchi Method for making a gas-sensing element
US3961301A (en) * 1973-12-13 1976-06-01 Plessey Incorporated Humidity sensor
US3945217A (en) * 1974-04-04 1976-03-23 Whirlpool Corporation Refrigeration system defrost control
US3936794A (en) * 1974-06-27 1976-02-03 Ford Motor Company Exhaust gas sensor probe
US4641423A (en) * 1974-10-21 1987-02-10 Fast Heat Element Manufacturing Co., Inc. Method of making electrically heated nozzles and nozzle systems
US3911386A (en) * 1975-01-15 1975-10-07 Ford Motor Co Exhaust gas air fuel ratio sensor
JPS51151176A (en) * 1975-06-20 1976-12-25 Asahi Glass Co Ltd Dew condensation sensor
US4011538A (en) * 1976-01-30 1977-03-08 Illinois Tool Works Inc. Fluid sensor
GB1586117A (en) * 1977-06-22 1981-03-18 Rosemount Eng Co Ltd Solid state sensor element
GB2005072B (en) * 1977-08-30 1982-06-30 Matsushita Electric Ind Co Ltd Terminal unit for electrical circuit elements and sensing device employing said terminal unit
US4321577A (en) * 1980-02-25 1982-03-23 General Electric Company Integral humidity sensor/heater configurations
JPS5837556A (en) * 1981-08-31 1983-03-04 Toshiba Corp Cation discharge type halogenated hydrocarbon sensor
US5198774A (en) * 1987-12-17 1993-03-30 Williams Ii William J Gas monitoring apparatus
US4910463A (en) * 1987-12-17 1990-03-20 Sentech Corporation Halogen monitoring apparatus
US5301537A (en) * 1991-05-31 1994-04-12 W. C. Wood Company Limited Method for detecting halocarbon refrigerant leaks by usage of a continually heated mass spectrometer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714094A (en) * 1955-07-26 Ceramic surface cleanser
US931594A (en) * 1908-12-26 1909-08-17 Frederick Gelstharp Flame-indicator for furnaces.
US1421720A (en) * 1920-06-03 1922-07-04 Claudius H M Roberts Method of and apparatus for detecting the presence of one gas in another
US2064651A (en) * 1931-12-30 1936-12-15 Gen Electric Humidity responsive device
US2316872A (en) * 1941-04-10 1943-04-20 Robert R Kernen Thermal control for electric circuit
US2550498A (en) * 1947-06-14 1951-04-24 Gen Electric Method and apparatus for electrically detecting vapors and the like
US2595943A (en) * 1949-04-26 1952-05-06 Porocel Corp Method of hardening bauxite with calcium sulfate
GB683511A (en) * 1949-07-26 1952-11-26 Rudolf Wendlandt Process for the production of hydrocyanic acid
GB685744A (en) * 1950-07-26 1953-01-07 Degussa Process for the production of hydrocyanic acid from volatile hydrocarbons and ammonia
US2647234A (en) * 1951-01-19 1953-07-28 Davies Lab Inc Cloud detecting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631436A (en) * 1970-07-14 1971-12-28 Naoyoshi Taguchi Gas-detecting device

Also Published As

Publication number Publication date
BE534288A (en)
FR1115861A (en) 1956-04-30
US2806991A (en) 1957-09-17

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