DE2036447B2 - Ionisations rauchmelder - Google Patents

Ionisations rauchmelder

Info

Publication number
DE2036447B2
DE2036447B2 DE19702036447 DE2036447A DE2036447B2 DE 2036447 B2 DE2036447 B2 DE 2036447B2 DE 19702036447 DE19702036447 DE 19702036447 DE 2036447 A DE2036447 A DE 2036447A DE 2036447 B2 DE2036447 B2 DE 2036447B2
Authority
DE
Germany
Prior art keywords
voltage
ionization
field effect
effect transistor
conductor
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
DE19702036447
Other languages
German (de)
English (en)
Other versions
DE2036447A1 (de
Inventor
Akihiro Fujisawa Kanagawa Kobayashi (Japan)
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
Priority claimed from JP6683969A external-priority patent/JPS4819118B1/ja
Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of DE2036447A1 publication Critical patent/DE2036447A1/de
Publication of DE2036447B2 publication Critical patent/DE2036447B2/de
Pending legal-status Critical Current

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
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62Investigating 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
    • G01N27/64Investigating 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
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11Actuation 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
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11Actuation 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
    • G08B17/113Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (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)
DE19702036447 1969-07-24 1970-07-22 Ionisations rauchmelder Pending DE2036447B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5797969 1969-07-24
JP6683969A JPS4819118B1 (enrdf_load_stackoverflow) 1969-08-26 1969-08-26

Publications (2)

Publication Number Publication Date
DE2036447A1 DE2036447A1 (de) 1971-02-25
DE2036447B2 true DE2036447B2 (de) 1972-03-02

Family

ID=26399064

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702036447 Pending DE2036447B2 (de) 1969-07-24 1970-07-22 Ionisations rauchmelder

Country Status (7)

Country Link
US (1) US3688119A (enrdf_load_stackoverflow)
CH (1) CH526178A (enrdf_load_stackoverflow)
DE (1) DE2036447B2 (enrdf_load_stackoverflow)
FR (1) FR2055543A5 (enrdf_load_stackoverflow)
GB (1) GB1282536A (enrdf_load_stackoverflow)
IL (1) IL35151A (enrdf_load_stackoverflow)
NL (1) NL7010779A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812362A (en) * 1973-07-02 1974-05-21 Honeywell Inc Smoke detector circuit
CH586941A5 (enrdf_load_stackoverflow) * 1975-07-25 1977-04-15 Cerberus Ag
US4228429A (en) * 1977-12-29 1980-10-14 Ricoh Company, Ltd. Alarm system having phase-sensitive bridge circuit
US4401979A (en) * 1981-02-11 1983-08-30 General Signal Corporation Electrical controls for ionization smoke detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516083A (en) * 1965-12-02 1970-06-02 Denske Securitas As Electric alarm system,preferably for a fire alarm
JPS446089Y1 (enrdf_load_stackoverflow) * 1966-03-30 1969-03-05

Also Published As

Publication number Publication date
FR2055543A5 (enrdf_load_stackoverflow) 1971-05-07
US3688119A (en) 1972-08-29
NL7010779A (enrdf_load_stackoverflow) 1971-01-26
IL35151A (en) 1973-08-29
CH526178A (de) 1972-07-31
GB1282536A (en) 1972-07-19
IL35151A0 (en) 1970-10-30
DE2036447A1 (de) 1971-02-25

Similar Documents

Publication Publication Date Title
DE2010208A1 (de) Selbsttätig ruckstellende Kurzzeitschutz einrichtung
DE2610647C2 (de) Schaltungsanordnung zum Erfassen und Einleiten von Maßnahmen zur Beseitigung eines durch einen fehlleitenden Gleichrichter bewirkten gleichstromseitigen Kurzschlusses in einem gleichrichterbrückengesteuerten Motorantriebssystem
DE2549864A1 (de) Netzgeraet-schutzschaltung
DE3322455A1 (de) Elektrischer schweissapparat
DE3245112A1 (de) Netzgeraet
DE2263867A1 (de) Steuerschaltung fuer thyristoren
DE3420003A1 (de) Anordnung zum verhindern uebermaessiger verlustleistung in einer leistungsschalthalbleitervorrichtung
DE1638902B2 (de) Schutzschaltungsanordnung für einen gesteuerte Leistungsgleichrichter enthaltenden Wechselrichter
DE1763492C3 (de) Fühleinrichtung für die Strombegrenzungseinrichtung einer Regeleinrichtung
DE2036447B2 (de) Ionisations rauchmelder
DE2854441A1 (de) Gleichspannungsregler
DE2753915C3 (de) Schaltungsanordnung mit einem Hochspannungsleistungs transistor
DE3015939C2 (de) Elektronisches Zündsystem für eine Brennkraftmaschine
DE1565225A1 (de) Verfahren zur Bearbeitung mit intermittierenden elektrischen Entladungen mit gesteuerten Impulsen
DE2822833A1 (de) Dimmerschaltung
DE1903621A1 (de) Thyristor-Ansteuerschaltung
DE2813073A1 (de) Diskriminator-schaltung
DE3743556A1 (de) Schaltungsanordnung zur steuerung eines leistungstriacs
DE3511207C2 (enrdf_load_stackoverflow)
DE1933862B2 (de) Mit wechselstrom betriebene verzoegerungsschaltungsanordnung
DE3310242C2 (enrdf_load_stackoverflow)
DE2137890C3 (de) Elektrische Schaltungsanordnung zur Erzeugung von Zünimpulsen
DE2415629B2 (de) Schaltungsanordnung zum zeitweiligen, von der Größe der veränderlichen Betriebsspannung abhangigen Blockieren eines Stromzweiges
DE1541896B2 (de) Phasenwinkelmesseinrichtung
DE1763563C (de) Elektronisches Zeitrelais

Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971