DE59711621D1 - Optical smoke detector - Google Patents

Optical smoke detector

Info

Publication number
DE59711621D1
DE59711621D1 DE59711621T DE59711621T DE59711621D1 DE 59711621 D1 DE59711621 D1 DE 59711621D1 DE 59711621 T DE59711621 T DE 59711621T DE 59711621 T DE59711621 T DE 59711621T DE 59711621 D1 DE59711621 D1 DE 59711621D1
Authority
DE
Germany
Prior art keywords
smoke detector
light source
light
optical smoke
optical module
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.)
Expired - Lifetime
Application number
DE59711621T
Other languages
German (de)
Inventor
Dr Hess
Peter Kunz
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 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
Application filed by Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Application granted granted Critical
Publication of DE59711621D1 publication Critical patent/DE59711621D1/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
    • 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.
DE59711621T 1997-12-24 1997-12-24 Optical smoke detector Expired - Lifetime DE59711621D1 (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
DE59711621D1 true DE59711621D1 (en) 2004-06-17

Family

ID=8227883

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59711621T Expired - Lifetime DE59711621D1 (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
EP1103937B1 (en) * 1999-11-19 2005-05-11 Siemens Building Technologies AG Fire detector
CA2293830C (en) * 1999-12-31 2008-07-29 Digital Security Controls Ltd. Photoelectric smoke detector and chamber therefor
EP1376505B1 (en) 2002-06-20 2006-02-15 Siemens Schweiz AG Fire detector
ES2259353T3 (en) 2002-06-20 2006-10-01 Siemens Schweiz Ag SMOKE DETECTOR BY LIGHT DISPERSION.
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
EP4300457A3 (en) 2016-11-11 2024-03-13 Carrier Corporation High sensitivity fiber optic based detection
ES2919300T3 (en) 2016-11-11 2022-07-22 Carrier Corp High sensitivity fiber optic based detection
EP3539108B1 (en) 2016-11-11 2020-08-12 Carrier Corporation High sensitivity fiber optic based detection
WO2018089629A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
WO2018089660A1 (en) * 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
CN113508288A (en) 2018-09-28 2021-10-15 西门子瑞士有限公司 Scattered light smoke detector with wavelength selective polarizer 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
ATE284603T1 (en) 2004-05-15
PT926646E (en) 2004-10-29
EP0926646B1 (en) 2004-05-12
ES2221946T3 (en) 2005-01-16
DK0926646T3 (en) 2004-09-20
EP0926646B8 (en) 2004-09-22
EP0926646A1 (en) 1999-06-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE