DE2332853A1 - Geraet zur feststellung von rauch, gas oder aerosolen - Google Patents
Geraet zur feststellung von rauch, gas oder aerosolenInfo
- Publication number
- DE2332853A1 DE2332853A1 DE19732332853 DE2332853A DE2332853A1 DE 2332853 A1 DE2332853 A1 DE 2332853A1 DE 19732332853 DE19732332853 DE 19732332853 DE 2332853 A DE2332853 A DE 2332853A DE 2332853 A1 DE2332853 A1 DE 2332853A1
- Authority
- DE
- Germany
- Prior art keywords
- ionization
- circuit
- chamber
- field effect
- effect transistor
- 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.)
- Pending
Links
- 239000000443 aerosol Substances 0.000 title claims description 5
- 230000005669 field effect Effects 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000035945 sensitivity Effects 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 4
- 230000002285 radioactive effect Effects 0.000 claims description 3
- OYEHPCDNVJXUIW-FTXFMUIASA-N 239Pu Chemical compound [239Pu] OYEHPCDNVJXUIW-FTXFMUIASA-N 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 229910052695 Americium Inorganic materials 0.000 claims 1
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 claims 1
- 210000000056 organ Anatomy 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001960 triggered effect Effects 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
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7320180A FR2232025B3 (enrdf_load_stackoverflow) | 1973-06-04 | 1973-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2332853A1 true DE2332853A1 (de) | 1974-12-19 |
Family
ID=9120447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732332853 Pending DE2332853A1 (de) | 1973-06-04 | 1973-06-28 | Geraet zur feststellung von rauch, gas oder aerosolen |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5548257B2 (enrdf_load_stackoverflow) |
| DE (1) | DE2332853A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2232025B3 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565199Y2 (enrdf_load_stackoverflow) * | 1975-08-29 | 1981-02-04 | ||
| JPS53107212U (enrdf_load_stackoverflow) * | 1977-02-04 | 1978-08-29 |
-
1973
- 1973-06-04 FR FR7320180A patent/FR2232025B3/fr not_active Expired
- 1973-06-28 DE DE19732332853 patent/DE2332853A1/de active Pending
- 1973-12-13 JP JP13820473A patent/JPS5548257B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5548257B2 (enrdf_load_stackoverflow) | 1980-12-04 |
| FR2232025A3 (enrdf_load_stackoverflow) | 1974-12-27 |
| JPS5017892A (enrdf_load_stackoverflow) | 1975-02-25 |
| FR2232025B3 (enrdf_load_stackoverflow) | 1976-03-19 |
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