FR2370279A1 - Detecteur d'ionisation - Google Patents

Detecteur d'ionisation

Info

Publication number
FR2370279A1
FR2370279A1 FR7725187A FR7725187A FR2370279A1 FR 2370279 A1 FR2370279 A1 FR 2370279A1 FR 7725187 A FR7725187 A FR 7725187A FR 7725187 A FR7725187 A FR 7725187A FR 2370279 A1 FR2370279 A1 FR 2370279A1
Authority
FR
France
Prior art keywords
cavity
ionization
ionization detector
forming
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.)
Granted
Application number
FR7725187A
Other languages
English (en)
Other versions
FR2370279B3 (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.)
Gulf and Western Manufacturing Co
Original Assignee
Gulf and Western Manufacturing 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
Priority claimed from US05/739,455 external-priority patent/US4121105A/en
Application filed by Gulf and Western Manufacturing Co filed Critical Gulf and Western Manufacturing Co
Publication of FR2370279A1 publication Critical patent/FR2370279A1/fr
Application granted granted Critical
Publication of FR2370279B3 publication Critical patent/FR2370279B3/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
    • 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)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Measurement Of Radiation (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

a. Détecteur d'ionisation. b. Détecteur d'ionisation caractérisé en ce qu'il se compose d'une chambre comprenant un moyen formant une première cavité, un moyen formant une seconde cavité ayant des moyens pour recevoir des gaz de l'extérieur de la seconde cavité et une limite commune entre les deux cavités, comportant une électrode commune, une électrode associée à la seconde cavité, une autre électrode dans la première cavité formant une troisième cavité à l'intérieur de la première cavité, au moins partiellement ouverte pour former un chemin d'ionisation entre la première et la troisième cavité, un moyen comprenant une source radio-active, placée au moins dans la seconde cavité pour définir un courant d'ionisation dans la cavité et un moyen couplé à au moins l'électrode commune pour détecter les variations de courant d'ionisation.
FR7725187A 1976-11-08 1977-08-17 Detecteur d'ionisation Granted FR2370279A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/739,455 US4121105A (en) 1975-07-07 1976-11-08 Ionization detector

Publications (2)

Publication Number Publication Date
FR2370279A1 true FR2370279A1 (fr) 1978-06-02
FR2370279B3 FR2370279B3 (fr) 1980-06-20

Family

ID=24972389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725187A Granted FR2370279A1 (fr) 1976-11-08 1977-08-17 Detecteur d'ionisation

Country Status (9)

Country Link
JP (1) JPS5358290A (fr)
CA (1) CA1076269A (fr)
DE (1) DE2739091A1 (fr)
DK (1) DK493377A (fr)
ES (1) ES462684A1 (fr)
FR (1) FR2370279A1 (fr)
GB (1) GB1583047A (fr)
IT (1) IT1114156B (fr)
SE (1) SE427314B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430612A1 (fr) * 1978-07-05 1980-02-01 Ugon Pierre Chambre d'ionisation reglable

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703602A1 (de) * 1987-02-06 1988-08-18 Kernforschungsz Karlsruhe Vorrichtung mit einer ionisationskammer
GB0613882D0 (en) * 2006-07-12 2006-08-23 Kidde Ip Holdings Ltd Smoke detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430612A1 (fr) * 1978-07-05 1980-02-01 Ugon Pierre Chambre d'ionisation reglable

Also Published As

Publication number Publication date
ES462684A1 (es) 1978-11-01
DK493377A (da) 1978-05-09
DE2739091A1 (de) 1978-05-24
GB1583047A (en) 1981-01-21
JPS5358290A (en) 1978-05-26
SE427314B (sv) 1983-03-21
FR2370279B3 (fr) 1980-06-20
CA1076269A (fr) 1980-04-22
SE7712543L (sv) 1978-05-09
IT1114156B (it) 1986-01-27

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Legal Events

Date Code Title Description
TP Transmission of property