FI823837L - Roekdetektor - Google Patents
RoekdetektorInfo
- Publication number
- FI823837L FI823837L FI823837A FI823837A FI823837L FI 823837 L FI823837 L FI 823837L FI 823837 A FI823837 A FI 823837A FI 823837 A FI823837 A FI 823837A FI 823837 L FI823837 L FI 823837L
- Authority
- FI
- Finland
- Prior art keywords
- radiation
- receiver
- source
- amplitude
- smoke
- Prior art date
Links
- 230000005855 radiation Effects 0.000 abstract 12
- 239000000779 smoke Substances 0.000 abstract 4
- 238000011156 evaluation Methods 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
-
- 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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
-
- 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
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Computer Security & Cryptography (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Vehicle Body Suspensions (AREA)
- Gyroscopes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH724881A CH655396B (xx) | 1981-11-11 | 1981-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI823837A0 FI823837A0 (fi) | 1982-11-09 |
| FI823837L true FI823837L (fi) | 1983-05-12 |
Family
ID=4322161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI823837A FI823837L (fi) | 1981-11-11 | 1982-11-09 | Roekdetektor |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4555634A (xx) |
| EP (1) | EP0079010B1 (xx) |
| JP (1) | JPS5888641A (xx) |
| AT (1) | ATE20398T1 (xx) |
| AU (1) | AU556838B2 (xx) |
| BR (1) | BR8206536A (xx) |
| CA (1) | CA1208334A (xx) |
| CH (1) | CH655396B (xx) |
| DE (1) | DE3271683D1 (xx) |
| DK (1) | DK502382A (xx) |
| ES (1) | ES8401656A1 (xx) |
| FI (1) | FI823837L (xx) |
| IL (1) | IL67158A0 (xx) |
| NO (1) | NO156149C (xx) |
| NZ (1) | NZ202365A (xx) |
| YU (1) | YU252382A (xx) |
| ZA (1) | ZA828097B (xx) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187246A (ja) * | 1983-04-08 | 1984-10-24 | Nohmi Bosai Kogyo Co Ltd | 光電式煙感知器の機能検査装置 |
| US4823015A (en) * | 1985-05-08 | 1989-04-18 | Adt, Inc. | Electrical interference free projected beam smoke detector |
| DE3831654A1 (de) * | 1988-09-17 | 1990-03-22 | Hartwig Beyersdorf | Optischer rauchmelder |
| JPH02112096A (ja) * | 1988-10-21 | 1990-04-24 | Matsushita Electric Works Ltd | Ｉｃ化された感知器 |
| GB8913773D0 (en) * | 1989-06-15 | 1989-08-02 | Fire Fighting Enterprises Uk L | Particle detectors |
| AU652513B2 (en) * | 1992-06-29 | 1994-08-25 | Nohmi Bosai Ltd | Smoke detecting apparatus for fire alarm |
| CH685410A5 (de) * | 1993-02-15 | 1995-06-30 | Cerberus Ag | Vorrichtung zur Funktionsprüfung von Rauchmeldern. |
| US5929981A (en) * | 1996-06-18 | 1999-07-27 | Ohmeda Inc. | System for monitoring contamination of optical elements in a Raman gas analyzer |
| US6503893B2 (en) | 1996-12-30 | 2003-01-07 | Bone Care International, Inc. | Method of treating hyperproliferative diseases using active vitamin D analogues |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH566059A5 (xx) * | 1972-03-07 | 1975-08-29 | Protecbat La Detection Electro | |
| CH546989A (de) * | 1972-12-06 | 1974-03-15 | Cerberus Ag | Verfahren und vorrichtung zur brandmeldung. |
| US4011458A (en) * | 1975-10-09 | 1977-03-08 | Pyrotector, Incorporated | Photoelectric detector with light source intensity regulation |
| US4206456A (en) * | 1975-06-23 | 1980-06-03 | Chloride Incorporated | Smoke detector |
| US4242673A (en) * | 1978-03-13 | 1980-12-30 | American District Telegraph Company | Optical particle detector |
| US4180742A (en) * | 1978-03-27 | 1979-12-25 | Chloride Incorporated | Detector with supervisory signal from monitor cell |
| CH638331A5 (de) * | 1979-02-22 | 1983-09-15 | Cerberus Ag | Rauchdetektor. |
| DE2907173A1 (de) * | 1979-02-23 | 1980-09-04 | Hekatron Gmbh | Schaltungsanordnung fuer einen optischen rauchgasanzeiger |
-
1981
- 1981-11-11 CH CH724881A patent/CH655396B/de unknown
-
1982
- 1982-10-29 DE DE8282110013T patent/DE3271683D1/de not_active Expired
- 1982-10-29 AT AT82110013T patent/ATE20398T1/de not_active IP Right Cessation
- 1982-10-29 EP EP82110013A patent/EP0079010B1/de not_active Expired
- 1982-11-02 IL IL67158A patent/IL67158A0/xx unknown
- 1982-11-02 NZ NZ202365A patent/NZ202365A/en unknown
- 1982-11-03 US US06/439,059 patent/US4555634A/en not_active Expired - Fee Related
- 1982-11-04 AU AU90176/82A patent/AU556838B2/en not_active Ceased
- 1982-11-04 CA CA000414877A patent/CA1208334A/en not_active Expired
- 1982-11-04 ZA ZA828097A patent/ZA828097B/xx unknown
- 1982-11-09 ES ES517587A patent/ES8401656A1/es not_active Expired
- 1982-11-09 FI FI823837A patent/FI823837L/fi not_active Application Discontinuation
- 1982-11-10 YU YU02523/82A patent/YU252382A/xx unknown
- 1982-11-10 NO NO823753A patent/NO156149C/no unknown
- 1982-11-10 BR BR8206536A patent/BR8206536A/pt unknown
- 1982-11-11 DK DK502382A patent/DK502382A/da not_active Application Discontinuation
- 1982-11-11 JP JP57196867A patent/JPS5888641A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK502382A (da) | 1983-05-12 |
| ES517587A0 (es) | 1983-12-16 |
| NO156149C (no) | 1987-08-05 |
| FI823837A0 (fi) | 1982-11-09 |
| NO156149B (no) | 1987-04-21 |
| AU9017682A (en) | 1983-05-19 |
| NZ202365A (en) | 1985-09-13 |
| IL67158A0 (en) | 1983-03-31 |
| BR8206536A (pt) | 1983-09-27 |
| JPS5888641A (ja) | 1983-05-26 |
| YU252382A (en) | 1985-10-31 |
| ATE20398T1 (de) | 1986-06-15 |
| US4555634A (en) | 1985-11-26 |
| AU556838B2 (en) | 1986-11-20 |
| ZA828097B (en) | 1983-09-28 |
| DE3271683D1 (en) | 1986-07-17 |
| NO823753L (no) | 1983-05-13 |
| CA1208334A (en) | 1986-07-22 |
| CH655396B (xx) | 1986-04-15 |
| ES8401656A1 (es) | 1983-12-16 |
| EP0079010A1 (de) | 1983-05-18 |
| EP0079010B1 (de) | 1986-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application lapsed |
Owner name: CERBERUS AG |