FR2473201B3 - - Google Patents
Info
- Publication number
- FR2473201B3 FR2473201B3 FR8000048A FR8000048A FR2473201B3 FR 2473201 B3 FR2473201 B3 FR 2473201B3 FR 8000048 A FR8000048 A FR 8000048A FR 8000048 A FR8000048 A FR 8000048A FR 2473201 B3 FR2473201 B3 FR 2473201B3
- Authority
- FR
- France
- 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
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)
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 |
| BE0/203383A BE886940A (fr) | 1980-01-02 | 1980-12-31 | Detecteur de fumees capacitif a faible source d'ionisation |
| ES498274A ES8201334A1 (es) | 1980-01-02 | 1980-12-31 | Dispositivo detector de humos |
| 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 FR2473201A1 (fr) | 1981-07-10 |
| FR2473201B3 true FR2473201B3 (US20090182215A1-20090716-C00004.png) | 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)
Families Citing this family (11)
| 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)
| 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 BE BE0/203383A patent/BE886940A/fr not_active IP Right Cessation
- 1980-12-31 ES ES498274A patent/ES8201334A1/es not_active Expired
- 1980-12-31 IT IT83491/80A patent/IT1136527B/it active
-
1981
- 1981-01-02 DE DE3100022A patent/DE3100022A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| ES498274A0 (es) | 1981-12-01 |
| DE3100022A1 (de) | 1981-12-17 |
| BE886940A (fr) | 1981-04-16 |
| IT1136527B (it) | 1986-08-27 |
| IT8083491A0 (it) | 1980-12-31 |
| FR2473201A1 (fr) | 1981-07-10 |
| ES8201334A1 (es) | 1981-12-01 |
