DE1964669A1 - Ionisationskammer-Rauchdetektor - Google Patents

Ionisationskammer-Rauchdetektor

Info

Publication number
DE1964669A1
DE1964669A1 DE19691964669 DE1964669A DE1964669A1 DE 1964669 A1 DE1964669 A1 DE 1964669A1 DE 19691964669 DE19691964669 DE 19691964669 DE 1964669 A DE1964669 A DE 1964669A DE 1964669 A1 DE1964669 A1 DE 1964669A1
Authority
DE
Germany
Prior art keywords
smoke detector
smoke
ionization chamber
voltage
chamber
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.)
Pending
Application number
DE19691964669
Other languages
German (de)
English (en)
Inventor
Koju Sasaki
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.)
Nittan Co Ltd
Original Assignee
Nittan Co Ltd
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 Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of DE1964669A1 publication Critical patent/DE1964669A1/de
Pending 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
    • 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)
  • 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
DE19691964669 1968-12-24 1969-12-23 Ionisationskammer-Rauchdetektor Pending DE1964669A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9418168 1968-12-24

Publications (1)

Publication Number Publication Date
DE1964669A1 true DE1964669A1 (de) 1970-07-02

Family

ID=14103142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691964669 Pending DE1964669A1 (de) 1968-12-24 1969-12-23 Ionisationskammer-Rauchdetektor

Country Status (4)

Country Link
US (1) US3693009A (https=)
DE (1) DE1964669A1 (https=)
GB (1) GB1275450A (https=)
NL (1) NL6918515A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926560A (en) * 1973-10-30 1975-12-16 Us Energy System for detecting gaseous contaminants in air
US4090308A (en) * 1975-08-04 1978-05-23 Aero-Dyne Manufacturing, Inc. Method and apparatus for signalling concentration of air conveyed ionizable foreign matter
FR2438841A1 (fr) * 1978-10-13 1980-05-09 Commissariat Energie Atomique Capteur ionique pour detecteur d'incendie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU48167A1 (https=) * 1965-03-11 1966-09-12 Applic Electroniques Ets
US3560737A (en) * 1967-08-02 1971-02-02 Honeywell Inc Combustion products detector using a radioactive source and detector

Also Published As

Publication number Publication date
US3693009A (en) 1972-09-19
GB1275450A (en) 1972-05-24
NL6918515A (https=) 1970-06-26

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