SE344254B - - Google Patents

Info

Publication number
SE344254B
SE344254B SE1851/69A SE185169A SE344254B SE 344254 B SE344254 B SE 344254B SE 1851/69 A SE1851/69 A SE 1851/69A SE 185169 A SE185169 A SE 185169A SE 344254 B SE344254 B SE 344254B
Authority
SE
Sweden
Application number
SE1851/69A
Inventor
D Lecuyer
Original Assignee
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 Francais Detection Eletr filed Critical Francais Detection Eletr
Publication of SE344254B publication Critical patent/SE344254B/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00Details of radiation-measuring instruments
    • G01T7/12Provision for actuation of an alarm
    • G01T7/125Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/12Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)
SE1851/69A 1968-02-15 1969-02-11 SE344254B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR139945 1968-02-15

Publications (1)

Publication Number Publication Date
SE344254B true SE344254B (ja) 1972-04-04

Family

ID=8646019

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1851/69A SE344254B (ja) 1968-02-15 1969-02-11

Country Status (11)

Country Link
US (1) US3621262A (ja)
AT (1) AT293920B (ja)
BE (1) BE727699A (ja)
CA (1) CA929251A (ja)
CH (1) CH486746A (ja)
DE (1) DE1906075C3 (ja)
ES (1) ES363669A1 (ja)
FR (1) FR1565498A (ja)
GB (1) GB1255221A (ja)
NL (1) NL164981C (ja)
SE (1) SE344254B (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1353615A (en) * 1970-08-11 1974-05-22 Prucill P M Fire detection systems
JPS5136119B1 (ja) * 1971-04-15 1976-10-06
JPS5512635B2 (ja) * 1972-07-26 1980-04-03
US3775762A (en) * 1972-09-15 1973-11-27 Us Air Force Gas multiplication ultraviolet detector system for fire detection
FR2257118B1 (ja) * 1974-01-04 1976-11-26 Commissariat Energie Atomique
JPS5231699A (en) * 1975-07-25 1977-03-10 Hochiki Corp Fire senser
DE2614487C2 (de) * 1976-04-03 1983-06-23 Total Feuerschutz GmbH, 6802 Ladenburg Schaltungsanordnung zum Auswerten einer Zufallsimpulsfolge von einem strahlungsempfindlichen Gasentladungsdetektor
JPS52153759A (en) * 1976-06-17 1977-12-21 Hochiki Co Storage type detector
US4162425A (en) * 1977-06-30 1979-07-24 Detector Electronics Corporation Ultraviolet detection tube quenching circuitry
JPH0648293B2 (ja) * 1983-03-18 1994-06-22 和芙 橋本 放射能等の自動測定警報装置
US4521120A (en) * 1983-09-15 1985-06-04 The United States Of America As Represented By The Secretary Of Agriculture Forest fire rate of spread with timers method
GB2199656B (en) * 1987-01-07 1990-10-17 Graviner Ltd Detection of electromagnetic radiation
DE3706986A1 (de) * 1987-03-04 1988-09-15 Preussag Ag Feuerschutz Verfahren zur auswertung des uv-anteils im flammenspektrum durch einen elektronischen flammenmelder
US6600425B1 (en) * 2002-03-19 2003-07-29 Elite Access Systems, Inc. Method and apparatus for detecting and recording episodic overloads in a circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175165A (en) * 1962-06-29 1965-03-23 Edward S Dayhoff Light controlled variable frequency pulse generator
US3393319A (en) * 1965-09-30 1968-07-16 Bausch & Lomb Photoelectric circuit for counting light pulses above a minimium value

Also Published As

Publication number Publication date
DE1906075A1 (de) 1969-09-04
NL164981C (nl) 1981-02-16
FR1565498A (ja) 1969-05-02
DE1906075B2 (de) 1973-07-26
GB1255221A (en) 1971-12-01
CA929251A (en) 1973-06-26
AT293920B (de) 1971-10-25
NL6901997A (ja) 1969-08-19
BE727699A (ja) 1969-07-01
NL164981B (nl) 1980-09-15
ES363669A1 (es) 1971-01-01
CH486746A (fr) 1970-02-28
US3621262A (en) 1971-11-16
DE1906075C3 (de) 1974-02-21

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