FR2445995B3 - - Google Patents
Info
- Publication number
- FR2445995B3 FR2445995B3 FR7900081A FR7900081A FR2445995B3 FR 2445995 B3 FR2445995 B3 FR 2445995B3 FR 7900081 A FR7900081 A FR 7900081A FR 7900081 A FR7900081 A FR 7900081A FR 2445995 B3 FR2445995 B3 FR 2445995B3
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7900081A FR2445995A3 (fr) | 1979-01-03 | 1979-01-03 | Detecteur de fumees velocimetrique a faible source d'ionisation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7900081A FR2445995A3 (fr) | 1979-01-03 | 1979-01-03 | Detecteur de fumees velocimetrique a faible source d'ionisation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2445995A3 FR2445995A3 (fr) | 1980-08-01 |
| FR2445995B3 true FR2445995B3 (xx) | 1980-12-12 |
Family
ID=9220425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7900081A Granted FR2445995A3 (fr) | 1979-01-03 | 1979-01-03 | Detecteur de fumees velocimetrique a faible source d'ionisation |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2445995A3 (xx) |
-
1979
- 1979-01-03 FR FR7900081A patent/FR2445995A3/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2445995A3 (fr) | 1980-08-01 |