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EP1017034A3 - Optical smoke detector according to the extinguish principle and method for compensating the temperature drift - Google Patents

Optical smoke detector according to the extinguish principle and method for compensating the temperature drift Download PDF

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Publication number
EP1017034A3
EP1017034A3 EP99117502A EP99117502A EP1017034A3 EP 1017034 A3 EP1017034 A3 EP 1017034A3 EP 99117502 A EP99117502 A EP 99117502A EP 99117502 A EP99117502 A EP 99117502A EP 1017034 A3 EP1017034 A3 EP 1017034A3
Authority
EP
European Patent Office
Prior art keywords
light source
temperature drift
smoke detector
extinguish
compensating
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.)
Granted
Application number
EP99117502A
Other languages
German (de)
French (fr)
Other versions
EP1017034B1 (en
EP1017034A2 (en
Inventor
Peter Kunz
Kurt Dr. Müller
Dieter Wieser
Markus Dr. Loepfe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Building Technologies AG
Original Assignee
Siemens Building Technologies AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EP98117368A external-priority patent/EP0987663A1/en
Application filed by Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Priority to EP99117502A priority Critical patent/EP1017034B1/en
Publication of EP1017034A2 publication Critical patent/EP1017034A2/en
Publication of EP1017034A3 publication Critical patent/EP1017034A3/en
Application granted granted Critical
Publication of EP1017034B1 publication Critical patent/EP1017034B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G08B17/103—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

Der Rauchmelder enthält eine optische Brücke (6) mit einer Lichtquelle (10), einer Mess- und einer Referenzstrecke (15 bzw. 16) und einem Mess- und einem Referenzempfänger (13 bzw. 14). Die optische Brücke (6) enthält neben der Lichtquelle (10) und den Empfängern (13, 14) als einzige optische Elemente zwei im Strahlengang nach der Lichtquele (10) angeordnete Lochblenden (L, L').The smoke detector contains an optical bridge (6) with a light source (10), a measuring and a reference path (15 or 16) and a measuring and a reference receiver (13 or 14). The optical bridge (6) contains the light source (10) and the receivers (13, 14) the only optical elements are two arranged in the beam path after the light source (10) Pinholes (L, L ').

Die Lichtquelle (10) ist in einer ein Luftreservoir enthaltenden Kammer (9) angeordnet, deren Oberfläche wesentlich grösser ist als diejenige der Lichtquelle (10). Die Temperaturdriftkurve wird durch Heizen der Lichtquelle (1) und Bestimmung des Meldersignals bei verschiedenen Temperaturen ermittelt.

Figure 00000001
The light source (10) is arranged in a chamber (9) containing an air reservoir, the surface of which is considerably larger than that of the light source (10). The temperature drift curve is determined by heating the light source (1) and determining the detector signal at different temperatures.
Figure 00000001
EP99117502A 1998-09-14 1999-09-04 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift Expired - Lifetime EP1017034B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99117502A EP1017034B1 (en) 1998-09-14 1999-09-04 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP98117368 1998-09-14
EP98117368A EP0987663A1 (en) 1998-09-14 1998-09-14 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift
CH217298 1998-10-27
CH217298 1998-10-27
EP99117502A EP1017034B1 (en) 1998-09-14 1999-09-04 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift

Publications (3)

Publication Number Publication Date
EP1017034A2 EP1017034A2 (en) 2000-07-05
EP1017034A3 true EP1017034A3 (en) 2000-08-02
EP1017034B1 EP1017034B1 (en) 2003-08-27

Family

ID=27173502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117502A Expired - Lifetime EP1017034B1 (en) 1998-09-14 1999-09-04 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift

Country Status (1)

Country Link
EP (1) EP1017034B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1349127A1 (en) * 2002-03-28 2003-10-01 Siemens Building Technologies AG Obscuration smoke detector and use thereof
EP1768074A1 (en) 2005-09-21 2007-03-28 Siemens Schweiz AG Early detection of fires
EP3913592B1 (en) 2020-05-22 2024-06-26 Carrier Corporation Heat detection device for a fire alarm

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922656A (en) * 1972-12-06 1975-11-25 Cerberus Ag Sensing presence of fire
US4266220A (en) * 1979-07-27 1981-05-05 Malinowski William J Self-calibrating smoke detector and method
EP0142672A1 (en) * 1983-09-23 1985-05-29 Siemens Aktiengesellschaft Optical smoke detector
US4678921A (en) * 1984-02-13 1987-07-07 Nippondenso Co., Ltd. Photo-electric smoke detector with light shielding electrode
EP0631263A1 (en) * 1993-06-23 1994-12-28 HEKATRON GmbH Circuit arrangement of an optical detector for environmental monitoring and indication of a disturbing medium
US5381130A (en) * 1991-09-06 1995-01-10 Cerberus Ag Optical smoke detector with active self-monitoring
GB2314618A (en) * 1996-06-26 1998-01-07 David Appleby Smoke detector using light scatter and extinction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922656A (en) * 1972-12-06 1975-11-25 Cerberus Ag Sensing presence of fire
US4266220A (en) * 1979-07-27 1981-05-05 Malinowski William J Self-calibrating smoke detector and method
EP0142672A1 (en) * 1983-09-23 1985-05-29 Siemens Aktiengesellschaft Optical smoke detector
US4678921A (en) * 1984-02-13 1987-07-07 Nippondenso Co., Ltd. Photo-electric smoke detector with light shielding electrode
US5381130A (en) * 1991-09-06 1995-01-10 Cerberus Ag Optical smoke detector with active self-monitoring
EP0631263A1 (en) * 1993-06-23 1994-12-28 HEKATRON GmbH Circuit arrangement of an optical detector for environmental monitoring and indication of a disturbing medium
GB2314618A (en) * 1996-06-26 1998-01-07 David Appleby Smoke detector using light scatter and extinction

Also Published As

Publication number Publication date
EP1017034B1 (en) 2003-08-27
EP1017034A2 (en) 2000-07-05

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