FR2523309B3 - - Google Patents
Info
- Publication number
- FR2523309B3 FR2523309B3 FR8203897A FR8203897A FR2523309B3 FR 2523309 B3 FR2523309 B3 FR 2523309B3 FR 8203897 A FR8203897 A FR 8203897A FR 8203897 A FR8203897 A FR 8203897A FR 2523309 B3 FR2523309 B3 FR 2523309B3
- 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
- G08B17/113—Constructional details
-
- 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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8203897A FR2523309A1 (en) | 1982-03-09 | 1982-03-09 | NEW CAPACITIVE SMOKE DETECTOR WITH INTERCHANGEABLE MODULES |
CH480382A CH649639A5 (en) | 1982-03-09 | 1982-08-11 | SMOKE DETECTOR. |
GB08229446A GB2117560B (en) | 1982-03-09 | 1982-10-14 | Capacitive smoke detector |
JP18121482A JPS58154092A (en) | 1982-03-09 | 1982-10-15 | Smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8203897A FR2523309A1 (en) | 1982-03-09 | 1982-03-09 | NEW CAPACITIVE SMOKE DETECTOR WITH INTERCHANGEABLE MODULES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2523309A1 FR2523309A1 (en) | 1983-09-16 |
FR2523309B3 true FR2523309B3 (en) | 1985-01-11 |
Family
ID=9271767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8203897A Granted FR2523309A1 (en) | 1982-03-09 | 1982-03-09 | NEW CAPACITIVE SMOKE DETECTOR WITH INTERCHANGEABLE MODULES |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS58154092A (en) |
CH (1) | CH649639A5 (en) |
FR (1) | FR2523309A1 (en) |
GB (1) | GB2117560B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101294923B (en) * | 2008-05-29 | 2011-03-02 | 中国科学技术大学 | Capacitor type smoke detector |
US9071264B2 (en) | 2011-10-06 | 2015-06-30 | Microchip Technology Incorporated | Microcontroller with sequencer driven analog-to-digital converter |
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 |
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 |
US9252769B2 (en) | 2011-10-07 | 2016-02-02 | Microchip Technology Incorporated | Microcontroller with optimized ADC controller |
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 |
US9189940B2 (en) | 2011-12-14 | 2015-11-17 | 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 |
US9176088B2 (en) * | 2011-12-14 | 2015-11-03 | 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 |
CN106846710A (en) * | 2017-04-06 | 2017-06-13 | 安徽理工大学 | A kind of novel domestic intelligence smoke alarm |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH508251A (en) * | 1970-07-23 | 1971-05-31 | Cerberus Ag | Ionization fire alarms |
CH551057A (en) * | 1973-04-17 | 1974-06-28 | Cerberus Ag | IONIZATION ALARM. |
US3959788A (en) * | 1974-05-10 | 1976-05-25 | General Signal Corporation | Ionization-type fire detector |
JPS5552558Y2 (en) * | 1975-02-10 | 1980-12-05 | ||
BE831296A (en) * | 1975-07-11 | 1975-11-03 | ION DETECTOR | |
GB1581236A (en) * | 1976-07-02 | 1980-12-10 | Chloride Group Ltd | Ionisation detector chamber |
DE2652970C3 (en) * | 1976-11-22 | 1979-09-06 | Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf | Ionization fire detectors |
FR2386874A1 (en) * | 1977-04-08 | 1978-11-03 | Gamma Electronic | IONIZATION SMOKE DETECTOR ASSOCIATED WITH AN ELECTRONIC VELOCIMETRIC MEASUREMENT CIRCUIT |
-
1982
- 1982-03-09 FR FR8203897A patent/FR2523309A1/en active Granted
- 1982-08-11 CH CH480382A patent/CH649639A5/en not_active IP Right Cessation
- 1982-10-14 GB GB08229446A patent/GB2117560B/en not_active Expired
- 1982-10-15 JP JP18121482A patent/JPS58154092A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2523309A1 (en) | 1983-09-16 |
GB2117560B (en) | 1986-04-16 |
CH649639A5 (en) | 1985-05-31 |
GB2117560A (en) | 1983-10-12 |
JPS58154092A (en) | 1983-09-13 |