CA1015071A - Ionization smoke detector circuit - Google Patents

Ionization smoke detector circuit

Info

Publication number
CA1015071A
CA1015071A CA200,342A CA200342A CA1015071A CA 1015071 A CA1015071 A CA 1015071A CA 200342 A CA200342 A CA 200342A CA 1015071 A CA1015071 A CA 1015071A
Authority
CA
Canada
Prior art keywords
detector circuit
smoke detector
ionization smoke
ionization
circuit
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
CA200,342A
Other versions
CA200342S (en
Inventor
Larry D. Larsen
Edward F. Kobek
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of CA1015071A publication Critical patent/CA1015071A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/12—Provision for actuation of an alarm
    • G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
CA200,342A 1973-07-02 1974-05-21 Ionization smoke detector circuit Expired CA1015071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00376011A US3812362A (en) 1973-07-02 1973-07-02 Smoke detector circuit

Publications (1)

Publication Number Publication Date
CA1015071A true CA1015071A (en) 1977-08-02

Family

ID=23483316

Family Applications (1)

Application Number Title Priority Date Filing Date
CA200,342A Expired CA1015071A (en) 1973-07-02 1974-05-21 Ionization smoke detector circuit

Country Status (4)

Country Link
US (1) US3812362A (en)
CA (1) CA1015071A (en)
CH (1) CH566603A5 (en)
DE (1) DE2430809C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713280C3 (en) * 1977-03-25 1986-10-23 Esser Sicherheitstechnik GmbH & Co KG, 4040 Neuss Function-testable fire alarm system
FR2386874A1 (en) * 1977-04-08 1978-11-03 Gamma Electronic IONIZATION SMOKE DETECTOR ASSOCIATED WITH AN ELECTRONIC VELOCIMETRIC MEASUREMENT CIRCUIT
US4148022A (en) * 1977-04-28 1979-04-03 Honeywell Inc. Chemical smoke or pollutant detector
US4238788A (en) * 1978-01-03 1980-12-09 Teledyne Industries, Inc. System for detecting a combustion process
USRE30620E (en) * 1978-07-03 1981-05-19 P. R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
US4456907A (en) * 1981-01-12 1984-06-26 Pyrotector, Inc. Ionization type smoke detector with test circuit
US4401979A (en) * 1981-02-11 1983-08-30 General Signal Corporation Electrical controls for ionization smoke detector
FR2504278B1 (en) * 1981-04-15 1985-11-08 Commissariat Energie Atomique X-RAY DETECTOR
US6838995B2 (en) * 2002-04-24 2005-01-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method for anticipating problems with electrical wiring
US6985083B2 (en) * 2002-04-24 2006-01-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Marking electrical wiring with condition indicators
CN115158381B (en) * 2022-07-11 2024-04-26 石家庄国祥运输设备有限公司 Smoke detection control circuit and control method for air conditioning unit of railway vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1576497A (en) * 1968-05-07 1969-08-01
NL7010779A (en) * 1969-07-24 1971-01-26

Also Published As

Publication number Publication date
CH566603A5 (en) 1975-09-15
DE2430809A1 (en) 1975-01-23
US3812362A (en) 1974-05-21
DE2430809C2 (en) 1984-09-27

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