FR2445995A3 - Detecteur de fumees velocimetrique a faible source d'ionisation - Google Patents

Detecteur de fumees velocimetrique a faible source d'ionisation

Info

Publication number
FR2445995A3
FR2445995A3 FR7900081A FR7900081A FR2445995A3 FR 2445995 A3 FR2445995 A3 FR 2445995A3 FR 7900081 A FR7900081 A FR 7900081A FR 7900081 A FR7900081 A FR 7900081A FR 2445995 A3 FR2445995 A3 FR 2445995A3
Authority
FR
France
Prior art keywords
smoke
low intensity
alarm
alarm system
smoke detector
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.)
Granted
Application number
FR7900081A
Other languages
English (en)
French (fr)
Other versions
FR2445995B3 (US07223432-20070529-C00017.png
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.)
GAMMA ELECTRONIC
Original Assignee
GAMMA ELECTRONIC
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 GAMMA ELECTRONIC filed Critical GAMMA ELECTRONIC
Priority to FR7900081A priority Critical patent/FR2445995A3/fr
Publication of FR2445995A3 publication Critical patent/FR2445995A3/fr
Application granted granted Critical
Publication of FR2445995B3 publication Critical patent/FR2445995B3/fr
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Management (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fire-Detection Mechanisms (AREA)
FR7900081A 1979-01-03 1979-01-03 Detecteur de fumees velocimetrique a faible source d'ionisation Granted FR2445995A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7900081A FR2445995A3 (fr) 1979-01-03 1979-01-03 Detecteur de fumees velocimetrique a faible source d'ionisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7900081A FR2445995A3 (fr) 1979-01-03 1979-01-03 Detecteur de fumees velocimetrique a faible source d'ionisation

Publications (2)

Publication Number Publication Date
FR2445995A3 true FR2445995A3 (fr) 1980-08-01
FR2445995B3 FR2445995B3 (US07223432-20070529-C00017.png) 1980-12-12

Family

ID=9220425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900081A Granted FR2445995A3 (fr) 1979-01-03 1979-01-03 Detecteur de fumees velocimetrique a faible source d'ionisation

Country Status (1)

Country Link
FR (1) FR2445995A3 (US07223432-20070529-C00017.png)

Also Published As

Publication number Publication date
FR2445995B3 (US07223432-20070529-C00017.png) 1980-12-12

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