FR1027984A - Gas detector - Google Patents

Gas detector

Info

Publication number
FR1027984A
FR1027984A FR1027984DA FR1027984A FR 1027984 A FR1027984 A FR 1027984A FR 1027984D A FR1027984D A FR 1027984DA FR 1027984 A FR1027984 A FR 1027984A
Authority
FR
France
Prior art keywords
gas detector
detector
gas
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
Other languages
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.)
ELECTRO WATT
Original Assignee
ELECTRO WATT
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 ELECTRO WATT filed Critical ELECTRO WATT
Application granted granted Critical
Publication of FR1027984A publication Critical patent/FR1027984A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • 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
    • G01N27/64—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 wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • G01N27/66—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 wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
    • 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
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
FR1027984D 1949-08-01 1950-07-21 Gas detector Expired FR1027984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US297463XA 1949-08-01 1949-08-01

Publications (1)

Publication Number Publication Date
FR1027984A true FR1027984A (en) 1953-05-18

Family

ID=21850662

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1027984D Expired FR1027984A (en) 1949-08-01 1950-07-21 Gas detector

Country Status (3)

Country Link
CH (1) CH297463A (en)
DE (1) DE844220C (en)
FR (1) FR1027984A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317765A1 (en) * 1975-07-07 1977-02-04 Gulf & Western Mfg Co IONIZATION DETECTOR
FR2430612A1 (en) * 1978-07-05 1980-02-01 Ugon Pierre Adjustable ionisation chamber for gas and smoke detectors - uses manoeuvrable arm to regulate radiation beam and so provide stable means of correction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH355380A (en) * 1957-10-30 1961-06-30 Cerberus Gmbh Device for determining changes in the composition of a gas
FR1568048A (en) * 1968-01-19 1969-05-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317765A1 (en) * 1975-07-07 1977-02-04 Gulf & Western Mfg Co IONIZATION DETECTOR
FR2430612A1 (en) * 1978-07-05 1980-02-01 Ugon Pierre Adjustable ionisation chamber for gas and smoke detectors - uses manoeuvrable arm to regulate radiation beam and so provide stable means of correction

Also Published As

Publication number Publication date
DE844220C (en) 1952-07-17
CH297463A (en) 1954-03-31

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