FR1202930A - Dispositif pour déterminer des variations de la composition d'un gaz - Google Patents

Dispositif pour déterminer des variations de la composition d'un gaz

Info

Publication number
FR1202930A
FR1202930A FR1202930DA FR1202930A FR 1202930 A FR1202930 A FR 1202930A FR 1202930D A FR1202930D A FR 1202930DA FR 1202930 A FR1202930 A FR 1202930A
Authority
FR
France
Prior art keywords
composition
gas
determining variations
variations
determining
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
English (en)
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.)
CERBERUS GmbH
Original Assignee
CERBERUS GmbH
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 CERBERUS GmbH filed Critical CERBERUS GmbH
Application granted granted Critical
Publication of FR1202930A publication Critical patent/FR1202930A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/08—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of radioactive substances, e.g. alphatrons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
FR1202930D 1957-10-30 1958-03-17 Dispositif pour déterminer des variations de la composition d'un gaz Expired FR1202930A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2963600X 1957-10-30

Publications (1)

Publication Number Publication Date
FR1202930A true FR1202930A (fr) 1960-01-14

Family

ID=4573070

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1202930D Expired FR1202930A (fr) 1957-10-30 1958-03-17 Dispositif pour déterminer des variations de la composition d'un gaz

Country Status (4)

Country Link
US (1) US2963600A (fr)
CH (1) CH355380A (fr)
DE (1) DE1079351B (fr)
FR (1) FR1202930A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH380594A (de) * 1960-11-02 1964-07-31 Securiton Ag Ionisations-Brandmeldeanlage
DE1198712B (de) * 1961-12-30 1965-08-12 Danske Securitas As Elektrische Alarmanlage
DE1279513B (de) * 1963-10-16 1968-10-03 Pour Applic Electroniques Ets Ionisationsmelder, dessen Ionisationskammer fuer die Atmosphaere zugaenglich ist
US3514603A (en) * 1966-12-22 1970-05-26 Johnson Service Co Ionization chamber detection apparatus having a low voltage source means
FR1540305A (fr) * 1967-02-09 1968-09-27 Dispositif perfectionné de détection d'incendie
CH460594A (de) * 1967-08-09 1968-07-31 Cerberus Ag Feuermelder mit einem gegen Berührung geschützten Feldeffekttransistor
DE2029485B2 (de) * 1969-06-21 1971-11-25 Nittan Co. Ltd., Tokio Ionisations rauchfuehler
US3792254A (en) * 1971-07-15 1974-02-12 Vigifeu Ionization chamber in particular for a fire detection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH227471A (de) * 1940-01-31 1943-06-15 C Jaeger Walter Einrichtung zur Anzeige von Veränderungen eines Gases oder Gasgemisches.
DE844220C (de) * 1949-08-01 1952-07-17 Elektro Watt Elek Sche Gasdetektor

Also Published As

Publication number Publication date
US2963600A (en) 1960-12-06
DE1079351B (de) 1960-04-07
CH355380A (de) 1961-06-30

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