NO129270B - - Google Patents
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- Publication number
- NO129270B NO129270B NO01806/71A NO180671A NO129270B NO 129270 B NO129270 B NO 129270B NO 01806/71 A NO01806/71 A NO 01806/71A NO 180671 A NO180671 A NO 180671A NO 129270 B NO129270 B NO 129270B
- Authority
- NO
- Norway
- Prior art keywords
- ionization
- fire detector
- measuring chamber
- voltage
- detector according
- Prior art date
Links
- 150000002500 ions Chemical class 0.000 claims description 26
- 230000002285 radioactive effect Effects 0.000 claims description 20
- 239000000779 smoke Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 239000003570 air Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 230000005669 field effect Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims description 4
- 239000012080 ambient air Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000443 aerosol Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000002800 charge carrier Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- -1 chlorine hydrogen Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity 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
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2024116 | 1970-05-16 | ||
| DE19712121382 DE2121382A1 (de) | 1971-04-30 | 1971-04-30 | Iomsations Feuermelder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO129270B true NO129270B (de) | 1974-03-18 |
Family
ID=25759156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO01806/71A NO129270B (de) | 1970-05-16 | 1971-05-12 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3795904A (de) |
| AR (1) | AR199378A1 (de) |
| BE (1) | BE767246A (de) |
| CA (1) | CA948332A (de) |
| CH (1) | CH539310A (de) |
| ES (1) | ES197895Y (de) |
| FR (1) | FR2090086B1 (de) |
| GB (1) | GB1329475A (de) |
| NO (1) | NO129270B (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906474A (en) * | 1973-05-07 | 1975-09-16 | Fire Alert Company | Combustion products alarm |
| FR2402256A1 (fr) * | 1977-08-29 | 1979-03-30 | Debard Robert | Detecteur, notamment d'incendie |
| US4208655A (en) * | 1978-02-21 | 1980-06-17 | Westinghouse Electric Corp. | Protective system for electrical apparatus |
| USRE30620E (en) * | 1978-07-03 | 1981-05-19 | P. R. Mallory & Co. Inc. | High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means |
| ZA786519B (en) * | 1978-11-20 | 1980-02-27 | Anglo Amer Corp South Africa | Detector |
| US4383253A (en) * | 1979-01-29 | 1983-05-10 | International Quartz Ltd. | Ionization smoke detector |
| US4270123A (en) * | 1979-02-26 | 1981-05-26 | Universal Det, S.A.R.L. | Detector for indicating a fire or detector malfunction |
| DE3004753C2 (de) * | 1980-02-08 | 1983-12-22 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
| US5189399A (en) * | 1989-02-18 | 1993-02-23 | Hartwig Beyersdorf | Method of operating an ionization smoke alarm and ionization smoke alarm |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950387A (en) * | 1957-08-16 | 1960-08-23 | Bell & Howell Co | Gas analysis |
| NL224264A (de) * | 1957-10-24 | |||
| LU48167A1 (de) * | 1965-03-11 | 1966-09-12 | Applic Electroniques Ets | |
| FR1494089A (fr) * | 1965-03-11 | 1967-09-08 | Pour Applic Electroniques Ets | Circuit de détection et de mesure de signaux, notamment de signaux dérivés de l'ionisation d'un milieu, particulièrement d'un milieu gazeux |
| CH446131A (de) * | 1966-02-22 | 1967-10-31 | Cerberus Ag | Ionisationsfeuermelderanlage |
| CH497755A (de) * | 1969-06-24 | 1970-10-15 | Cerberus Ag | Ionisationsfeuermelder |
-
1971
- 1971-05-12 NO NO01806/71A patent/NO129270B/no unknown
- 1971-05-13 US US00142892A patent/US3795904A/en not_active Expired - Lifetime
- 1971-05-14 CA CA113,051A patent/CA948332A/en not_active Expired
- 1971-05-14 CH CH717471A patent/CH539310A/de not_active IP Right Cessation
- 1971-05-14 FR FR7117530A patent/FR2090086B1/fr not_active Expired
- 1971-05-14 ES ES1971197895U patent/ES197895Y/es not_active Expired
- 1971-05-17 GB GB1528571*[A patent/GB1329475A/en not_active Expired
- 1971-05-17 BE BE767246A patent/BE767246A/xx unknown
- 1971-05-17 AR AR235587A patent/AR199378A1/es active
Also Published As
| Publication number | Publication date |
|---|---|
| CH539310A (de) | 1973-07-15 |
| US3795904A (en) | 1974-03-05 |
| FR2090086B1 (de) | 1975-01-17 |
| FR2090086A1 (de) | 1972-01-14 |
| BE767246A (fr) | 1971-11-17 |
| CA948332A (en) | 1974-05-28 |
| ES197895Y (es) | 1975-10-01 |
| ES197895U (es) | 1975-05-01 |
| AR199378A1 (es) | 1974-08-30 |
| GB1329475A (en) | 1973-09-12 |
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