EP0880118A3 - Optischer Rauchmelder - Google Patents

Optischer Rauchmelder Download PDF

Info

Publication number
EP0880118A3
EP0880118A3 EP98108717A EP98108717A EP0880118A3 EP 0880118 A3 EP0880118 A3 EP 0880118A3 EP 98108717 A EP98108717 A EP 98108717A EP 98108717 A EP98108717 A EP 98108717A EP 0880118 A3 EP0880118 A3 EP 0880118A3
Authority
EP
European Patent Office
Prior art keywords
moisture
optical
light
optical smoke
additional
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
EP98108717A
Other languages
English (en)
French (fr)
Other versions
EP0880118A2 (de
EP0880118B1 (de
Inventor
Thomas Hochhauser
Stefan Günther
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Publication of EP0880118A2 publication Critical patent/EP0880118A2/de
Publication of EP0880118A3 publication Critical patent/EP0880118A3/de
Application granted granted Critical
Publication of EP0880118B1 publication Critical patent/EP0880118B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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

Bisher wird das Problem des Feuchtigkeitsniederschlags in optischen Rauchmeldern nach dem Rückstreuprinzip durch eine zusätzliche Bestimmung des Feuchtigkeitsniederschlags mit Hilfe zusätzlicher Lichtquellen oder Feuchtigkeitssensoren gelöst. Der erfindungsgemäße optische Rauchmelder soll ohne Kompensationsmechanismen auskommen, und dennoch unempfindlich gegenüber Feuchtigkeit oder Verschmutzung sein.
Die optischen Strahlengänge (6,8) des Lichtempfängers (3) und des Lichtsenders (2) werden durch Blenden (5,7) derart eingeschränkt, daß sie sich nur in einem Überlappungsbereich (11) in der optischen Meßkammer (1) überlagern. Dadurch ist sichergestellt, daß Licht, welches an einer Verschmutzung oder Feuchtigkeit rückgestreut wird, eine zusätzliche Reflexion und damit eine Signalschwächung erfährt, bevor es im Lichtempfänger (3) detektiert wird.
Gegenüber Feuchtigkeit und Verschmutzung unempfindlicher optischer Rauchmelder ohne Kompensationsmechanismen.
EP98108717A 1997-05-20 1998-05-13 Optischer Rauchmelder Expired - Lifetime EP0880118B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19721065 1997-05-20
DE19721065 1997-05-20

Publications (3)

Publication Number Publication Date
EP0880118A2 EP0880118A2 (de) 1998-11-25
EP0880118A3 true EP0880118A3 (de) 2000-01-05
EP0880118B1 EP0880118B1 (de) 2003-08-13

Family

ID=7829979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98108717A Expired - Lifetime EP0880118B1 (de) 1997-05-20 1998-05-13 Optischer Rauchmelder

Country Status (3)

Country Link
EP (1) EP0880118B1 (de)
AT (1) ATE247316T1 (de)
DE (1) DE59809254D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60108413T2 (de) 2000-11-10 2005-06-02 Unitive Electronics, Inc. Verfahren zum positionieren von komponenten mit hilfe flüssiger antriebsmittel und strukturen hierfür
EP1376504B1 (de) 2002-06-20 2006-02-22 Siemens Schweiz AG Streulichtrauchmelder
ATE524724T1 (de) * 2006-07-20 2011-09-15 Sick Engineering Gmbh Vorrichtung und verfahren zur messung der lichtstreuung
CN111540158B (zh) * 2020-05-27 2023-08-15 深圳市高新投三江电子股份有限公司 一种带有凝露识别功能的烟感报警器及使用方法
CN111564019B (zh) * 2020-05-27 2023-09-12 深圳市高新投三江电子股份有限公司 一种抗凝露干扰的感烟火灾探测器及使用方法
CN111540159B (zh) * 2020-05-27 2023-07-25 深圳市高新投三江电子股份有限公司 一种可定向排除凝露干扰的烟雾报警器及使用方法
CN117054304B (zh) * 2023-08-28 2024-05-24 浙江天赛计量检测股份有限公司 一种烟尘采样器的检测设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105199A1 (de) * 1982-09-08 1984-04-11 Heimann GmbH Strahlungsrauchmelder
EP0213878A2 (de) * 1985-08-24 1987-03-11 Nohmi Bosai Ltd. Streulichttyp-Rauchdetektor
GB2281619A (en) * 1993-09-07 1995-03-08 Hochiki Co Light scattering type smoke sensor
EP0660283A1 (de) * 1993-12-22 1995-06-28 Nohmi Bosai Ltd. Streulichtrauchmelder und Empfindlichkeitseinstellungseinheit dafür

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105199A1 (de) * 1982-09-08 1984-04-11 Heimann GmbH Strahlungsrauchmelder
EP0213878A2 (de) * 1985-08-24 1987-03-11 Nohmi Bosai Ltd. Streulichttyp-Rauchdetektor
GB2281619A (en) * 1993-09-07 1995-03-08 Hochiki Co Light scattering type smoke sensor
EP0660283A1 (de) * 1993-12-22 1995-06-28 Nohmi Bosai Ltd. Streulichtrauchmelder und Empfindlichkeitseinstellungseinheit dafür

Also Published As

Publication number Publication date
EP0880118A2 (de) 1998-11-25
ATE247316T1 (de) 2003-08-15
EP0880118B1 (de) 2003-08-13
DE59809254D1 (de) 2003-09-18

Similar Documents

Publication Publication Date Title
EP1211478B1 (de) Abstandsbestimmung
DE69418596T2 (de) Erfassung von verfälschten objekten
EP0770969A3 (de) System und Verfahren zur Verbesserung des Signal-Rausch-Verhältnisses von Abtastern von fluoreszierenden Strichcoden und Markierungen
EP0785883B1 (de) Sensor zur sichtweiten- und regenbelagsermittlung
EP0903572A3 (de) Vorrichtung zur Detektion der Verschmutzung eines Fensters
CA1039079A (en) Measuring the concentration of substances suspended in a liquid
EP2093732A1 (de) Vorrichtung und Verfahren zum Detektieren von Rauch durch gemeinsame Auswertung zweier optischer Rückstreusignale
DE19902319A1 (de) Streulichtbrandmelder
EP0419668A4 (en) Fire alarm
WO1999053287A3 (en) Electronic techniques for analyte detection
WO2001098740A3 (en) Spectrum measuring instrument
EP1070969A3 (de) Szintillationsstrahlungsdetektor
DE10222797C5 (de) Abstandsbestimmung
EP0880118A3 (de) Optischer Rauchmelder
EP0760476A3 (de) Verfahren zur quantitativen Bestimmung einer oder mehrerer Charakteristiken einer Substanz
EP0710933A3 (de) Münzerfassungsvorrichtung
EP0233594A3 (de) Digitaler Positionsgeber
FR2696544B1 (fr) Cellule de detection, detecteur, capteur et spectroscope.
DE102005046950B3 (de) Vorrichtung und Verfahren zur Aufnahme von Abstandsbildern
EP0714023A3 (de) Verfahren und Vorrichtung zur Bestimmung des Kohlengehalts in Asche, Strahlungsablenkelement hierfür, sowie ein Verfahren zu dessen Herstellung
EP2270516A3 (de) Analysesystem mit Mitteln zur Erkennung von Unterdosierungen
EP1514750A3 (de) Kombinierte Sensoranordnung zur Detektion von Umgebungslicht und Regen
DE4307585C1 (de) Verfahren und Vorrichtung zur Kompensation der Feuchtigkeit in einem Streulichtmelder
EP0837371A3 (de) Für linienbreite unempfindliche Detektion einer Ausrichtmarke auf einer Halbleiterscheibe
DE102005027087A1 (de) Beschlagsensor für ein Kraftfahrzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 20000908

17Q First examination report despatched

Effective date: 20020612

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030813

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20030813

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030813

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030813

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59809254

Country of ref document: DE

Date of ref document: 20030918

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031124

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20030813

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040531

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040514

EN Fr: translation not filed
BERE Be: lapsed

Owner name: *SIEMENS A.G.

Effective date: 20040531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL