FR2473201A1 - Detecteur de fumees capacitif a faible source d'ionisation - Google Patents

Detecteur de fumees capacitif a faible source d'ionisation Download PDF

Info

Publication number
FR2473201A1
FR2473201A1 FR8000048A FR8000048A FR2473201A1 FR 2473201 A1 FR2473201 A1 FR 2473201A1 FR 8000048 A FR8000048 A FR 8000048A FR 8000048 A FR8000048 A FR 8000048A FR 2473201 A1 FR2473201 A1 FR 2473201A1
Authority
FR
France
Prior art keywords
air
capacitor
ionization
circuit
dielectric constant
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.)
Granted
Application number
FR8000048A
Other languages
English (en)
French (fr)
Other versions
FR2473201B3 (ref
Inventor
Emile Hugon
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.)
GAMMA ELECTRONIC
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
Priority to FR8000048A priority Critical patent/FR2473201A1/fr
Priority to BE0/203383A priority patent/BE886940A/fr
Priority to ES498274A priority patent/ES498274A0/es
Priority to IT83491/80A priority patent/IT1136527B/it
Priority to DE3100022A priority patent/DE3100022A1/de
Publication of FR2473201A1 publication Critical patent/FR2473201A1/fr
Application granted granted Critical
Publication of FR2473201B3 publication Critical patent/FR2473201B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR8000048A 1980-01-02 1980-01-02 Detecteur de fumees capacitif a faible source d'ionisation Granted FR2473201A1 (fr)

Priority Applications (5)

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
BE0/203383A BE886940A (fr) 1980-01-02 1980-12-31 Detecteur de fumees capacitif a faible source d'ionisation
ES498274A ES498274A0 (es) 1980-01-02 1980-12-31 Dispositivo detector de humos
IT83491/80A IT1136527B (it) 1980-01-02 1980-12-31 Rilevatore capacitivo di fumi a debole sorgente di ionizzazione
DE3100022A DE3100022A1 (de) 1980-01-02 1981-01-02 Ionisierungsrauchmelder

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 (2)

Publication Number Publication Date
FR2473201A1 true FR2473201A1 (fr) 1981-07-10
FR2473201B3 FR2473201B3 (ref) 1982-10-01

Family

ID=9237176

Family Applications (1)

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

Country Status (5)

Country Link
BE (1) BE886940A (ref)
DE (1) DE3100022A1 (ref)
ES (1) ES498274A0 (ref)
FR (1) FR2473201A1 (ref)
IT (1) IT1136527B (ref)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013090327A1 (en) * 2011-12-14 2013-06-20 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
WO2013090322A1 (en) * 2011-12-14 2013-06-20 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
WO2014022525A3 (en) * 2012-08-01 2014-03-27 Microchip Technology Incorporated Smoke detection using change in permittivity of capacitor air dielectric
US8847802B2 (en) 2011-10-06 2014-09-30 Microchip Technology Incorporated Microcontroller ADC with a variable sample and hold capacitor
US9071264B2 (en) 2011-10-06 2015-06-30 Microchip Technology Incorporated Microcontroller with sequencer driven analog-to-digital converter
US9207209B2 (en) 2011-12-14 2015-12-08 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9252769B2 (en) 2011-10-07 2016-02-02 Microchip Technology Incorporated Microcontroller with optimized ADC controller
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
US9437093B2 (en) 2011-10-06 2016-09-06 Microchip Technology Incorporated Differential current measurements to determine ION current in the presence of leakage current
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
US9823280B2 (en) 2011-12-21 2017-11-21 Microchip Technology Incorporated Current sensing with internal ADC capacitor

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

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9071264B2 (en) 2011-10-06 2015-06-30 Microchip Technology Incorporated Microcontroller with sequencer driven analog-to-digital converter
US9805572B2 (en) 2011-10-06 2017-10-31 Microchip Technology Incorporated Differential current measurements to determine ion current in the presence of leakage current
US8847802B2 (en) 2011-10-06 2014-09-30 Microchip Technology Incorporated Microcontroller ADC with a variable sample and hold capacitor
US9437093B2 (en) 2011-10-06 2016-09-06 Microchip Technology Incorporated Differential current measurements to determine ION current in the presence of leakage current
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
US9252769B2 (en) 2011-10-07 2016-02-02 Microchip Technology Incorporated Microcontroller with optimized ADC controller
CN104094328A (zh) * 2011-12-14 2014-10-08 密克罗奇普技术公司 用于检测离子室中的烟雾的方法及设备
WO2013090322A1 (en) * 2011-12-14 2013-06-20 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9207209B2 (en) 2011-12-14 2015-12-08 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
WO2013090327A1 (en) * 2011-12-14 2013-06-20 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
KR20140111287A (ko) * 2011-12-14 2014-09-18 마이크로칩 테크놀로지 인코포레이티드 이온화 챔버 내의 연기 검출 방법 및 장치
CN104094328B (zh) * 2011-12-14 2016-11-09 密克罗奇普技术公司 用于检测离子室中的烟雾的方法及设备
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
WO2014022525A3 (en) * 2012-08-01 2014-03-27 Microchip Technology Incorporated Smoke detection using change in permittivity of capacitor air dielectric

Also Published As

Publication number Publication date
ES8201334A1 (es) 1981-12-01
DE3100022A1 (de) 1981-12-17
BE886940A (fr) 1981-04-16
ES498274A0 (es) 1981-12-01
FR2473201B3 (ref) 1982-10-01
IT1136527B (it) 1986-08-27
IT8083491A0 (it) 1980-12-31

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