CH577221A5 - - Google Patents

Info

Publication number
CH577221A5
CH577221A5 CH1570974A CH1570974A CH577221A5 CH 577221 A5 CH577221 A5 CH 577221A5 CH 1570974 A CH1570974 A CH 1570974A CH 1570974 A CH1570974 A CH 1570974A CH 577221 A5 CH577221 A5 CH 577221A5
Authority
CH
Switzerland
Application number
CH1570974A
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CH577221A5 publication Critical patent/CH577221A5/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
    • G01N27/12—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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
CH1570974A 1973-11-28 1974-11-27 CH577221A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7316093A SE369636B (xx) 1973-11-28 1973-11-28

Publications (1)

Publication Number Publication Date
CH577221A5 true CH577221A5 (xx) 1976-06-30

Family

ID=20319229

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1570974A CH577221A5 (xx) 1973-11-28 1974-11-27

Country Status (8)

Country Link
US (1) US3973192A (xx)
CH (1) CH577221A5 (xx)
DE (1) DE2455003B2 (xx)
FR (1) FR2252617B1 (xx)
GB (1) GB1484172A (xx)
IT (1) IT1026569B (xx)
NO (1) NO133342C (xx)
SE (1) SE369636B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423407A (en) * 1981-02-27 1983-12-27 Dart Industries Inc. Apparatus and method for measuring the concentration of gases
US4502321A (en) * 1981-02-27 1985-03-05 Capital Controls Apparatus and method for measuring the concentration of gases
US5466605A (en) * 1993-03-15 1995-11-14 Arizona Board Of Regents Method for detection of chemical components
US5985673A (en) * 1994-12-22 1999-11-16 Arizona Baord Of Regents Method for regeneration of a sensor
DE10130608A1 (de) * 2001-06-26 2003-01-09 Bsh Bosch Siemens Hausgeraete Brandschutzeinrichtung für Haushaltgeräte

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369499A (en) * 1945-02-13 Apparatus fob measuring rate of
US3820958A (en) * 1973-01-29 1974-06-28 Dow Chemical Co Hydrogen sulfide monitor

Also Published As

Publication number Publication date
GB1484172A (en) 1977-09-01
IT1026569B (it) 1978-10-20
DE2455003A1 (de) 1975-06-12
SE369636B (xx) 1974-09-09
US3973192A (en) 1976-08-03
FR2252617A1 (xx) 1975-06-20
NO133342C (xx) 1976-04-21
NO133342B (xx) 1976-01-05
FR2252617B1 (xx) 1978-06-16
NO744274L (xx) 1975-06-23
DE2455003B2 (de) 1975-12-18

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Legal Events

Date Code Title Description
PL Patent ceased