NL7002577A - - Google Patents

Info

Publication number
NL7002577A
NL7002577A NL7002577A NL7002577A NL7002577A NL 7002577 A NL7002577 A NL 7002577A NL 7002577 A NL7002577 A NL 7002577A NL 7002577 A NL7002577 A NL 7002577A NL 7002577 A NL7002577 A NL 7002577A
Authority
NL
Netherlands
Application number
NL7002577A
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 filed Critical
Publication of NL7002577A publication Critical patent/NL7002577A/xx

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

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)
NL7002577A 1969-04-25 1970-02-24 NL7002577A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44031475A JPS529998B1 (ja) 1969-04-25 1969-04-25

Publications (1)

Publication Number Publication Date
NL7002577A true NL7002577A (ja) 1970-10-27

Family

ID=12332275

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7002577A NL7002577A (ja) 1969-04-25 1970-02-24

Country Status (5)

Country Link
US (1) US3676678A (ja)
JP (1) JPS529998B1 (ja)
DE (1) DE2019791B2 (ja)
GB (1) GB1259437A (ja)
NL (1) NL7002577A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711457C2 (de) * 1977-03-16 1985-06-27 Siemens AG, 1000 Berlin und 8000 München Ionisationsbrandmelder
EP0011364B1 (en) * 1978-09-29 1983-05-18 Chubb Fire Limited Heat detector circuit
ZA786519B (en) * 1978-11-20 1980-02-27 Anglo Amer Corp South Africa Detector
DE3904979A1 (de) * 1989-02-18 1990-08-23 Beyersdorf Hartwig Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm
EP0423489A1 (de) * 1989-09-15 1991-04-24 Cerberus Ag Brandmeldeanlage mit Ueberwachung
US6683319B1 (en) 2001-07-17 2004-01-27 Mitec Incorporated System and method for irradiation with improved dosage uniformity

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK101900C (da) * 1961-12-30 1965-06-08 Danske Securitas As Elektrisk alarmanlæg, fortrinsvis til brandalarmering.

Also Published As

Publication number Publication date
GB1259437A (ja) 1972-01-05
DE2019791A1 (de) 1970-11-05
US3676678A (en) 1972-07-11
DE2019791B2 (de) 1972-03-30
JPS529998B1 (ja) 1977-03-19

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