BE886940A - Detecteur de fumees capacitif a faible source d'ionisation - Google Patents

Detecteur de fumees capacitif a faible source d'ionisation

Info

Publication number
BE886940A
BE886940A BE0/203383A BE203383A BE886940A BE 886940 A BE886940 A BE 886940A BE 0/203383 A BE0/203383 A BE 0/203383A BE 203383 A BE203383 A BE 203383A BE 886940 A BE886940 A BE 886940A
Authority
BE
Belgium
Prior art keywords
capacitive
smoke detector
ionization source
low ionization
low
Prior art date
Application number
BE0/203383A
Other languages
English (en)
French (fr)
Original Assignee
Gamma Electronic
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 Gamma Electronic filed Critical Gamma Electronic
Publication of BE886940A publication Critical patent/BE886940A/fr

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
BE0/203383A 1980-01-02 1980-12-31 Detecteur de fumees capacitif a faible source d'ionisation BE886940A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8000048A FR2473201A1 (fr) 1980-01-02 1980-01-02 Detecteur de fumees capacitif a faible source d'ionisation

Publications (1)

Publication Number Publication Date
BE886940A true BE886940A (fr) 1981-04-16

Family

ID=9237176

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/203383A BE886940A (fr) 1980-01-02 1980-12-31 Detecteur de fumees capacitif a faible source d'ionisation

Country Status (5)

Country Link
BE (1) BE886940A (US20070167544A1-20070719-C00007.png)
DE (1) DE3100022A1 (US20070167544A1-20070719-C00007.png)
ES (1) ES8201334A1 (US20070167544A1-20070719-C00007.png)
FR (1) FR2473201A1 (US20070167544A1-20070719-C00007.png)
IT (1) IT1136527B (US20070167544A1-20070719-C00007.png)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9071264B2 (en) 2011-10-06 2015-06-30 Microchip Technology Incorporated Microcontroller with sequencer driven analog-to-digital converter
US9252769B2 (en) 2011-10-07 2016-02-02 Microchip Technology Incorporated Microcontroller with optimized ADC controller
US9437093B2 (en) 2011-10-06 2016-09-06 Microchip Technology Incorporated Differential current measurements to determine ION current in the presence of leakage current
US9257980B2 (en) 2011-10-06 2016-02-09 Microchip Technology Incorporated Measuring capacitance of a capacitive sensor with a microcontroller having digital outputs for driving a guard ring
US9467141B2 (en) 2011-10-07 2016-10-11 Microchip Technology Incorporated Measuring capacitance of a capacitive sensor with a microcontroller having an analog output for driving a guard ring
US8847802B2 (en) 2011-10-06 2014-09-30 Microchip Technology Incorporated Microcontroller ADC with a variable sample and hold capacitor
US9207209B2 (en) 2011-12-14 2015-12-08 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9176088B2 (en) * 2011-12-14 2015-11-03 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9189940B2 (en) * 2011-12-14 2015-11-17 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9823280B2 (en) 2011-12-21 2017-11-21 Microchip Technology Incorporated Current sensing with internal ADC capacitor
US8884771B2 (en) 2012-08-01 2014-11-11 Microchip Technology Incorporated Smoke detection using change in permittivity of capacitor air dielectric

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508251A (de) * 1970-07-23 1971-05-31 Cerberus Ag Ionisationsfeuermelder
BE790355A (fr) * 1971-10-20 1973-02-15 Bevaknings A B Securitas Detecteur de fumee

Also Published As

Publication number Publication date
ES498274A0 (es) 1981-12-01
DE3100022A1 (de) 1981-12-17
IT1136527B (it) 1986-08-27
IT8083491A0 (it) 1980-12-31
FR2473201A1 (fr) 1981-07-10
FR2473201B3 (US20070167544A1-20070719-C00007.png) 1982-10-01
ES8201334A1 (es) 1981-12-01

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GAMMA-ELECTRONIC

Effective date: 19881231