FR2473201A1 - Detecteur de fumees capacitif a faible source d'ionisation - Google Patents
Detecteur de fumees capacitif a faible source d'ionisation Download PDFInfo
- 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
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 230000002285 radioactive effect Effects 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000003915 air pollution Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 9
- 239000003517 fume Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003904 radioactive pollution Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 229910052695 Americium Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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)
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 |
| IT83491/80A IT1136527B (it) | 1980-01-02 | 1980-12-31 | Rilevatore capacitivo di fumi a debole sorgente di ionizzazione |
| ES498274A ES8201334A1 (es) | 1980-01-02 | 1980-12-31 | Dispositivo detector de humos |
| BE0/203383A BE886940A (fr) | 1980-01-02 | 1980-12-31 | Detecteur de fumees capacitif a faible source d'ionisation |
| 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 (OSRAM) | 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 (OSRAM) |
| DE (1) | DE3100022A1 (OSRAM) |
| ES (1) | ES8201334A1 (OSRAM) |
| FR (1) | FR2473201A1 (OSRAM) |
| IT (1) | IT1136527B (OSRAM) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013090322A1 (en) * | 2011-12-14 | 2013-06-20 | 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 |
| 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)
| 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 |
-
1980
- 1980-01-02 FR FR8000048A patent/FR2473201A1/fr active Granted
- 1980-12-31 IT IT83491/80A patent/IT1136527B/it active
- 1980-12-31 ES ES498274A patent/ES8201334A1/es not_active Expired
- 1980-12-31 BE BE0/203383A patent/BE886940A/fr not_active IP Right Cessation
-
1981
- 1981-01-02 DE DE3100022A patent/DE3100022A1/de not_active Ceased
Cited By (18)
| 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 |
| WO2013090327A1 (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 |
| WO2013090322A1 (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 |
|---|---|
| BE886940A (fr) | 1981-04-16 |
| IT1136527B (it) | 1986-08-27 |
| DE3100022A1 (de) | 1981-12-17 |
| ES498274A0 (es) | 1981-12-01 |
| ES8201334A1 (es) | 1981-12-01 |
| IT8083491A0 (it) | 1980-12-31 |
| FR2473201B3 (OSRAM) | 1982-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3500368A (en) | Automatic ionic fire alarm system | |
| FR2473201A1 (fr) | Detecteur de fumees capacitif a faible source d'ionisation | |
| JPS6325398B2 (OSRAM) | ||
| US2874305A (en) | Radiation integrator | |
| CH649639A5 (fr) | Detecteur de fumees. | |
| US2728861A (en) | Radiation pocket screamer | |
| US3909815A (en) | Detector for fumes and combustion gases | |
| US3560737A (en) | Combustion products detector using a radioactive source and detector | |
| FR2639122A1 (fr) | Procede et appareil pour la detection d'impulsions dues a des decharges electrostatiques | |
| FR2528487A1 (fr) | Dispositif pour la surveillance des locaux blindes, surtout des chambres fortes et coffres-forts | |
| US2697824A (en) | Test circuit for flame detector systems | |
| US2981840A (en) | Detecting device | |
| US4924098A (en) | Nuclear radiation level detector | |
| US3122635A (en) | Portable scintillation detector with a flat large area probe for surface monitoring | |
| US4053825A (en) | Ionization chamber type gas leak detector operating in the high voltage avalanche region | |
| EP0159244B1 (fr) | Détecteur électrique de particules pour la détection d'incendie | |
| US3393319A (en) | Photoelectric circuit for counting light pulses above a minimium value | |
| CH406451A (fr) | Dispositif électrométrique | |
| CH625356A5 (OSRAM) | ||
| WO1984000429A1 (en) | Suspended particle detector | |
| US3932851A (en) | Aerosol detector | |
| US4270123A (en) | Detector for indicating a fire or detector malfunction | |
| US3304545A (en) | Combustion products detector | |
| FR2607938A1 (fr) | Nouveau detecteur de fumees modulaire | |
| FR2528980A1 (fr) | Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique |