DK0926646T3 - Optical smoke detector - Google Patents

Optical smoke detector

Info

Publication number
DK0926646T3
DK0926646T3 DK97122894T DK97122894T DK0926646T3 DK 0926646 T3 DK0926646 T3 DK 0926646T3 DK 97122894 T DK97122894 T DK 97122894T DK 97122894 T DK97122894 T DK 97122894T DK 0926646 T3 DK0926646 T3 DK 0926646T3
Authority
DK
Denmark
Prior art keywords
smoke detector
light source
light
optical smoke
optical module
Prior art date
Application number
DK97122894T
Other languages
Danish (da)
Inventor
Kurt Dr Hess
Peter Kunz
Original Assignee
Siemens Building Tech 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
Application filed by Siemens Building Tech Ag filed Critical Siemens Building Tech Ag
Application granted granted Critical
Publication of DK0926646T3 publication Critical patent/DK0926646T3/en

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
    • 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

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

The smoke detector has an alarm insert (2), an optical module (1) and an evaluation circuit, whereby the optical module has a light source (4), a measurement chamber (3) and a light receiver (5) connected to the evaluation circuit. The light source is designed to emit a beam in the visible wavelength range. The wavelength of the light emitted by the light source lies in the range of blue or red light and is pref. 460 or 660 nm.
DK97122894T 1997-12-24 1997-12-24 Optical smoke detector DK0926646T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97122894A EP0926646B8 (en) 1997-12-24 1997-12-24 Optical smoke detector

Publications (1)

Publication Number Publication Date
DK0926646T3 true DK0926646T3 (en) 2004-09-20

Family

ID=8227883

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97122894T DK0926646T3 (en) 1997-12-24 1997-12-24 Optical smoke detector

Country Status (6)

Country Link
EP (1) EP0926646B8 (en)
AT (1) ATE284603T1 (en)
DE (1) DE59711621D1 (en)
DK (1) DK0926646T3 (en)
ES (1) ES2221946T3 (en)
PT (1) PT926646E (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19902319B4 (en) * 1999-01-21 2011-06-30 Novar GmbH, Albstadt-Ebingen Zweigniederlassung Neuss, 41469 Scattered light fire detectors
EP1087352A1 (en) * 1999-09-22 2001-03-28 Siemens Building Technologies AG Optical smoke detector
PT1103937E (en) * 1999-11-19 2005-09-30 Siemens Building Tech Ag FIRE DETECTOR
CA2293830C (en) * 1999-12-31 2008-07-29 Digital Security Controls Ltd. Photoelectric smoke detector and chamber therefor
ATE318000T1 (en) 2002-06-20 2006-03-15 Siemens Schweiz Ag FIRE ALARM
DE50205854D1 (en) 2002-06-20 2006-04-27 Siemens Schweiz Ag Zuerich Scattered light smoke
DE102005010454A1 (en) 2005-03-08 2006-09-21 Robert Bosch Gmbh gas sensor
EP1732049A1 (en) 2005-06-10 2006-12-13 Siemens S.A.S. Fire or smoke detector with high false alarm rejection performance
EP3096130B1 (en) 2014-10-13 2021-05-26 Universität Duisburg-Essen Device for identification of aerosols
EP3029647B1 (en) 2014-12-04 2017-05-31 Siemens Schweiz AG Open scattered light smoke detector, particularly with a sidelooker LED
ES2968291T3 (en) 2016-11-11 2024-05-08 Carrier Corp High sensitivity fiber optic based detection
EP3539105B1 (en) 2016-11-11 2024-09-11 Carrier Corporation High sensitivity fiber optic based detection
CA3043583A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
ES2812831T3 (en) 2016-11-11 2021-03-18 Carrier Corp High sensitivity fiber optic based detection
CA3043500A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
US11506590B2 (en) 2018-09-28 2022-11-22 Siemens Schweiz Ag Scattered light smoke detector having a two-color LED, a photosensor, and a wavelength-selective polarizer connected upstream of the photosensor or connected downstream of the two-color LED, and suitable use of such a polarizer
CN111795951A (en) * 2020-05-28 2020-10-20 南京颗粒光电科技有限公司 Integrated sensor for thermal runaway detection of new energy battery and early warning method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951459C2 (en) * 1979-12-20 1984-03-29 Heimann Gmbh, 6200 Wiesbaden Optical arrangement for a smoke detector based on the light scattering principle
CH683464A5 (en) * 1991-09-06 1994-03-15 Cerberus Ag Optical smoke detector with active surveillance.
CH682428A5 (en) * 1991-09-13 1993-09-15 Cerberus Ag Optical smoke detector using light dispersion - has receiver providing signal representing received light polarised perpendicular to plane containing axes of source and receiver

Also Published As

Publication number Publication date
DE59711621D1 (en) 2004-06-17
ATE284603T1 (en) 2004-05-15
ES2221946T3 (en) 2005-01-16
PT926646E (en) 2004-10-29
EP0926646B8 (en) 2004-09-22
EP0926646B1 (en) 2004-05-12
EP0926646A1 (en) 1999-06-30

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