FR2150096A5 - - Google Patents

Info

Publication number
FR2150096A5
FR2150096A5 FR7229139A FR7229139A FR2150096A5 FR 2150096 A5 FR2150096 A5 FR 2150096A5 FR 7229139 A FR7229139 A FR 7229139A FR 7229139 A FR7229139 A FR 7229139A FR 2150096 A5 FR2150096 A5 FR 2150096A5
Authority
FR
France
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
FR7229139A
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.)
RFT MESSELEKTRONIK DRESDEN VEB
Original Assignee
RFT MESSELEKTRONIK DRESDEN VEB
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 RFT MESSELEKTRONIK DRESDEN VEB filed Critical RFT MESSELEKTRONIK DRESDEN VEB
Application granted granted Critical
Publication of FR2150096A5 publication Critical patent/FR2150096A5/fr
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)
FR7229139A 1971-08-11 1972-08-11 Expired FR2150096A5 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15706971 1971-08-11

Publications (1)

Publication Number Publication Date
FR2150096A5 true FR2150096A5 (sv) 1973-03-30

Family

ID=5484188

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229139A Expired FR2150096A5 (sv) 1971-08-11 1972-08-11

Country Status (3)

Country Link
DE (1) DE2236303A1 (sv)
FR (1) FR2150096A5 (sv)
SE (1) SE387455B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604893A1 (de) * 1986-02-15 1987-08-20 Honeywell Elac Nautik Gmbh Verfahren und vorrichtung zum feststellen geringfuegiger mengen von gasen oder daempfen in gasgemischen
NO174606C (no) * 1991-06-17 1994-06-01 Bjoern Rennemo Framgangsmåte og anordning for måling av röykkonsentrasjon

Also Published As

Publication number Publication date
DE2236303A1 (de) 1973-02-15
SE387455B (sv) 1976-09-06

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Legal Events

Date Code Title Description
ST Notification of lapse