GB2065880A - Radiation Detector for a Fire Alarm - Google Patents

Radiation Detector for a Fire Alarm Download PDF

Info

Publication number
GB2065880A
GB2065880A GB8103946A GB8103946A GB2065880A GB 2065880 A GB2065880 A GB 2065880A GB 8103946 A GB8103946 A GB 8103946A GB 8103946 A GB8103946 A GB 8103946A GB 2065880 A GB2065880 A GB 2065880A
Authority
GB
United Kingdom
Prior art keywords
radiation
filter
radiation detector
interference
sensor
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.)
Withdrawn
Application number
GB8103946A
Other languages
English (en)
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.)
Cerberus AG
Original Assignee
Cerberus 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 Cerberus AG filed Critical Cerberus AG
Publication of GB2065880A publication Critical patent/GB2065880A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G01J5/046—Materials; Selection of thermal materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0801—Means for wavelength selection or discrimination
    • G01J5/0802—Optical filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0875—Windows; Arrangements for fastening thereof
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Control Of Combustion (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8103946A 1978-04-25 1979-04-24 Radiation Detector for a Fire Alarm Withdrawn GB2065880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH446678A CH628171A5 (de) 1978-04-25 1978-04-25 Flammenmelder.

Publications (1)

Publication Number Publication Date
GB2065880A true GB2065880A (en) 1981-07-01

Family

ID=4276616

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8103946A Withdrawn GB2065880A (en) 1978-04-25 1979-04-24 Radiation Detector for a Fire Alarm
GB7914323A Expired GB2020417B (en) 1978-04-25 1979-04-24 Flame detector fire alarm

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7914323A Expired GB2020417B (en) 1978-04-25 1979-04-24 Flame detector fire alarm

Country Status (7)

Country Link
JP (1) JPS54146596A (enrdf_load_stackoverflow)
AT (1) AT381406B (enrdf_load_stackoverflow)
AU (1) AU521239B2 (enrdf_load_stackoverflow)
CH (2) CH628171A5 (enrdf_load_stackoverflow)
DE (2) DE2857795C2 (enrdf_load_stackoverflow)
FR (2) FR2424036A1 (enrdf_load_stackoverflow)
GB (2) GB2065880A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742236A (en) * 1985-04-27 1988-05-03 Minolta Camera Kabushiki Kaisha Flame detector for detecting phase difference in two different wavelengths of light
US8253106B2 (en) 2009-05-13 2012-08-28 Minimax Gmbh & Co. Kg Device and method for detecting flames
US8400314B2 (en) 2009-05-13 2013-03-19 Minimax Gmbh & Co. Kg Fire alarm

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH648660A5 (de) * 1980-12-03 1985-03-29 Cerberus Ag Strahlungsdetektor fuer einen flammenmelder.
DE3279061D1 (en) * 1981-04-16 1988-10-27 Emi Ltd Flame detector
US4639598A (en) * 1985-05-17 1987-01-27 Santa Barbara Research Center Fire sensor cross-correlator circuit and method
JP2622382B2 (ja) * 1987-07-30 1997-06-18 バブコツク日立株式会社 火炎検出器
DE3924250A1 (de) * 1989-07-21 1991-02-07 Preussag Ag Feuerschutz Branddetektor
US9587987B2 (en) 2012-03-12 2017-03-07 Honeywell International Inc. Method and device for detection of multiple flame types
DE102021004593A1 (de) 2021-09-10 2023-03-16 Promecon Process Measurement Control Gmbh Metallurgischer Schmelzofen sowie Verfahren zur Bestimmung der Menge an heteromolekularem Gas

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665440A (en) * 1969-08-19 1972-05-23 Teeg Research Inc Fire detector utilizing ultraviolet and infrared sensors
FR2151148A5 (enrdf_load_stackoverflow) * 1971-08-20 1973-04-13 Detection Electro Fse
US3896311A (en) 1974-01-02 1975-07-22 Minnesota Mining & Mfg Pyroelectric motion and temperature sensitive infrared detector with conductive fingers
US3992110A (en) * 1974-09-03 1976-11-16 The United States Of America As Represented By The Secretary Of The Navy Multi-spectral optical comparator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742236A (en) * 1985-04-27 1988-05-03 Minolta Camera Kabushiki Kaisha Flame detector for detecting phase difference in two different wavelengths of light
US8253106B2 (en) 2009-05-13 2012-08-28 Minimax Gmbh & Co. Kg Device and method for detecting flames
US8400314B2 (en) 2009-05-13 2013-03-19 Minimax Gmbh & Co. Kg Fire alarm

Also Published As

Publication number Publication date
JPS6239473B2 (enrdf_load_stackoverflow) 1987-08-24
AU4648679A (en) 1979-11-01
DE2857795C2 (de) 1985-09-26
FR2424036A1 (fr) 1979-11-23
JPS54146596A (en) 1979-11-15
FR2424036B1 (enrdf_load_stackoverflow) 1983-07-18
DE2823411A1 (de) 1979-11-08
CH640963A5 (de) 1984-01-31
ATA252479A (de) 1986-02-15
FR2470418A1 (fr) 1981-05-29
AT381406B (de) 1986-10-10
GB2020417A (en) 1979-11-14
CH628171A5 (de) 1982-02-15
AU521239B2 (en) 1982-03-25
GB2020417B (en) 1982-11-24
DE2823411C2 (de) 1982-06-03
FR2470418B1 (enrdf_load_stackoverflow) 1985-04-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)