DE2107862C3 - Elektronischer Schaltkreis, der - Google Patents

Elektronischer Schaltkreis, der

Info

Publication number
DE2107862C3
DE2107862C3 DE2107862A DE2107862A DE2107862C3 DE 2107862 C3 DE2107862 C3 DE 2107862C3 DE 2107862 A DE2107862 A DE 2107862A DE 2107862 A DE2107862 A DE 2107862A DE 2107862 C3 DE2107862 C3 DE 2107862C3
Authority
DE
Germany
Prior art keywords
effect transistor
resistance
field effect
sensing element
gate
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
DE2107862A
Other languages
German (de)
English (en)
Other versions
DE2107862B2 (de
DE2107862A1 (de
Inventor
Lyman Lee Denver Col. Blackwell (V.St.A.)
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.)
Statitrol Corp Lakewood Col (vsta)
Original Assignee
Statitrol Corp Lakewood Col (vsta)
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 Statitrol Corp Lakewood Col (vsta) filed Critical Statitrol Corp Lakewood Col (vsta)
Publication of DE2107862A1 publication Critical patent/DE2107862A1/de
Publication of DE2107862B2 publication Critical patent/DE2107862B2/de
Application granted granted Critical
Publication of DE2107862C3 publication Critical patent/DE2107862C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
DE2107862A 1970-02-19 1971-02-18 Elektronischer Schaltkreis, der Expired DE2107862C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1272070A 1970-02-19 1970-02-19

Publications (3)

Publication Number Publication Date
DE2107862A1 DE2107862A1 (de) 1971-08-26
DE2107862B2 DE2107862B2 (de) 1975-05-15
DE2107862C3 true DE2107862C3 (de) 1976-01-02

Family

ID=21756372

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2107862A Expired DE2107862C3 (de) 1970-02-19 1971-02-18 Elektronischer Schaltkreis, der

Country Status (6)

Country Link
US (1) US3673586A (enExample)
CA (1) CA943672A (enExample)
DE (1) DE2107862C3 (enExample)
FR (1) FR2078790A5 (enExample)
GB (1) GB1335433A (enExample)
SE (1) SE348301B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792144A (fr) * 1972-01-07 1973-03-16 Rixson Firemark Ferme-porte repondant a certaines conditions
US3913082A (en) * 1973-02-02 1975-10-14 Jenson Robert S Ionization aerosol detector
DE2327497C3 (de) * 1973-05-30 1981-12-24 Benno 5430 Wettingen Aargau Perren Melder für Widerstandsänderungen mit nachgeschalteter Alarmeinrichtung
CH556072A (de) * 1973-11-26 1974-11-15 Cerberus Ag Ionisationsfeuermelder.
US3987319A (en) * 1974-12-05 1976-10-19 The United States Of America As Represented By The Secretary Of The Army Radiation-activated sensor
JPS5760147Y2 (enExample) * 1977-07-04 1982-12-22
FR2528980A1 (fr) * 1982-06-17 1983-12-23 Pgep Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL22673A (en) * 1964-12-27 1968-06-20 Jaffe A Sensitive smoke and fire detector

Also Published As

Publication number Publication date
DE2107862B2 (de) 1975-05-15
GB1335433A (en) 1973-10-31
CA943672A (en) 1974-03-12
FR2078790A5 (enExample) 1971-11-05
DE2107862A1 (de) 1971-08-26
SE348301B (enExample) 1972-08-28
US3673586A (en) 1972-06-27

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee