NO792869L - Branndetektor. - Google Patents

Branndetektor.

Info

Publication number
NO792869L
NO792869L NO792869A NO792869A NO792869L NO 792869 L NO792869 L NO 792869L NO 792869 A NO792869 A NO 792869A NO 792869 A NO792869 A NO 792869A NO 792869 L NO792869 L NO 792869L
Authority
NO
Norway
Prior art keywords
chamber
source
resistance
atmosphere
ionization
Prior art date
Application number
NO792869A
Other languages
English (en)
Norwegian (no)
Inventor
Jean Mars
Guy Roux
Original Assignee
Commissariat Energie Atomique
Francais Detection Eletr
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 Commissariat Energie Atomique, Francais Detection Eletr filed Critical Commissariat Energie Atomique
Publication of NO792869L publication Critical patent/NO792869L/no

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)
NO792869A 1978-09-11 1979-09-05 Branndetektor. NO792869L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7825999A FR2435766A1 (fr) 1978-09-11 1978-09-11 Perfectionnement aux detecteurs a incendie

Publications (1)

Publication Number Publication Date
NO792869L true NO792869L (no) 1980-03-12

Family

ID=9212493

Family Applications (1)

Application Number Title Priority Date Filing Date
NO792869A NO792869L (no) 1978-09-11 1979-09-05 Branndetektor.

Country Status (8)

Country Link
US (1) US4308458A (fr)
EP (1) EP0008991A1 (fr)
JP (1) JPS56108191A (fr)
CA (1) CA1134958A (fr)
DK (1) DK364379A (fr)
FR (1) FR2435766A1 (fr)
NO (1) NO792869L (fr)
OA (1) OA06335A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH044320Y2 (fr) * 1985-07-18 1992-02-07

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1185495A (fr) * 1957-10-24 1959-07-31 Dispositif de détection et de contrôle de variations de composition d'un gaz, utilisable notamment comme prédétecteur d'incendie
US3961195A (en) * 1974-08-26 1976-06-01 Timothy John Newington Fire detector having means for heating the support member of an electrode to prevent formation of moisture thereon

Also Published As

Publication number Publication date
DK364379A (da) 1980-03-12
FR2435766B1 (fr) 1981-10-23
CA1134958A (fr) 1982-11-02
JPS56108191A (en) 1981-08-27
EP0008991A1 (fr) 1980-03-19
OA06335A (fr) 1981-06-30
FR2435766A1 (fr) 1980-04-04
US4308458A (en) 1981-12-29

Similar Documents

Publication Publication Date Title
US3028490A (en) Apparatus responsive to the composition of a gaseous medium
AU641246B2 (en) Simple fire detector
CN101308125B (zh) 光离子化检测器、气相色谱检测系统和气相色谱检测方法
US4112417A (en) Apparatus for detecting leakage of liquid sodium
US4129418A (en) Discriminating halogen sensor
US5247185A (en) Regulated infrared source
US3507145A (en) Indium sesquioxide thin film combustible gas detector
NO792869L (no) Branndetektor.
US4095171A (en) Alkali metal ionization detector
US4582025A (en) Liquid level detector
US4404524A (en) Ionization detector
Liu et al. Gamma-free smoke and particle detector using tritiated foils
US20130293870A1 (en) Detector having a single source for ionization and photo detection
US20060269308A1 (en) Temperature detector and fixing device provided therewith
CN116847627A (zh) 用于光散射法颗粒物传感器的温度自适应装置
KR850700157A (ko) 화학제 드롭플릿의 검출방법 및 그 장치
JPS573024A (en) System for detecting leakage of sodium
US2867792A (en) Radiation detection
US2662188A (en) Voltage stabilizing amplifier system for neutron detectors
US2248614A (en) Vacuum measuring device
NO115947B (fr)
JPH0321067B2 (fr)
US3005121A (en) Beam intensity control system
Liu et al. Smoke and particle detector using tritiated semiconductor foil
US2352377A (en) Infrared control device