[go: up one dir, main page]

PT926646E - OPTICAL SMOKE DETECTOR - Google Patents

OPTICAL SMOKE DETECTOR

Info

Publication number
PT926646E
PT926646E PT97122894T PT97122894T PT926646E PT 926646 E PT926646 E PT 926646E PT 97122894 T PT97122894 T PT 97122894T PT 97122894 T PT97122894 T PT 97122894T PT 926646 E PT926646 E PT 926646E
Authority
PT
Portugal
Prior art keywords
smoke detector
light source
light
optical smoke
optical module
Prior art date
Application number
PT97122894T
Other languages
Portuguese (pt)
Inventor
Peter Kunz
Kurt Hess
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
Publication of PT926646E publication Critical patent/PT926646E/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.
PT97122894T 1997-12-24 1997-12-24 OPTICAL SMOKE DETECTOR PT926646E (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
PT926646E true PT926646E (en) 2004-10-29

Family

ID=8227883

Family Applications (1)

Application Number Title Priority Date Filing Date
PT97122894T PT926646E (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
ES2243027T3 (en) * 1999-11-19 2005-11-16 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
ATE318434T1 (en) 2002-06-20 2006-03-15 Siemens Schweiz Ag SCATTERED LIGHT SMOKE DETECTOR
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
EP3539105B1 (en) * 2016-11-11 2024-09-11 Carrier Corporation High sensitivity fiber optic based detection
WO2018089654A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
CN109964259B (en) 2016-11-11 2022-03-25 开利公司 Detection based on high sensitivity fiber
CN109937438B (en) 2016-11-11 2021-11-05 开利公司 Detection based on high sensitivity fiber
WO2018089668A2 (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
EP0926646B1 (en) 2004-05-12
EP0926646A1 (en) 1999-06-30
ATE284603T1 (en) 2004-05-15
EP0926646B8 (en) 2004-09-22
DE59711621D1 (en) 2004-06-17
ES2221946T3 (en) 2005-01-16
DK0926646T3 (en) 2004-09-20

Similar Documents

Publication Publication Date Title
PT926646E (en) OPTICAL SMOKE DETECTOR
WO2001043099A3 (en) Smoke detector using scatter emitter and obscuration emitter and a single receiver
CA2213482A1 (en) Fluorescent optical sensor
GB2389194B (en) Light level
DE50205015D1 (en) Monitoring method and optoelectronic sensor
US4937461A (en) Transmissometer having solid state light source
EP0273433A2 (en) Reflection type photoelectric switch
MX9206069A (en) EXHAUST GAS PARTICLE DETECTOR
CA2272365A1 (en) Contaminant detector
US5077480A (en) Transmissometer having solid state light source
NO994402D0 (en) Optical smoke detector
JPS6447921A (en) Improvement in or pertaining to detection of ultraviolet rays
EP0992771A3 (en) Luminous contrast detector
FI97846B (en) COUPLING
CA2251486A1 (en) External cavity laser type light source
ATE204400T1 (en) OPTICAL SMOKE DETECTOR BASED ON THE EXTINCTION PRINCIPLE
ATE292806T1 (en) OPTOELECTRONIC MONITORING SYSTEM
DE59806812D1 (en) Optical smoke detector
JPS57193078A (en) Semiconductor light oscillator with monitor
ATE242880T1 (en) OPTOELECTRONIC LUMINESCENCE BUTTON
DE59806679D1 (en) wallwashers
EP0940660A3 (en) Pyrometer
JPS6488696A (en) Method and device for reading optical recording
JPH0374021A (en) Photoelectric switch
BG105117A (en) Photometer