ATE94283T1 - Kontrollgeraet mit verwendung durchgelassenen lichtes. - Google Patents

Kontrollgeraet mit verwendung durchgelassenen lichtes.

Info

Publication number
ATE94283T1
ATE94283T1 AT88304040T AT88304040T ATE94283T1 AT E94283 T1 ATE94283 T1 AT E94283T1 AT 88304040 T AT88304040 T AT 88304040T AT 88304040 T AT88304040 T AT 88304040T AT E94283 T1 ATE94283 T1 AT E94283T1
Authority
AT
Austria
Prior art keywords
light
flue
unit
smoke
detector
Prior art date
Application number
AT88304040T
Other languages
English (en)
Inventor
Charles David Coe
Original Assignee
Combustion Dev Ltd
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 Combustion Dev Ltd filed Critical Combustion Dev Ltd
Application granted granted Critical
Publication of ATE94283T1 publication Critical patent/ATE94283T1/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G01N2021/536—Measurement device mounted at stack
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G01N2201/0621—Supply
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/066—Modifiable path; multiple paths in one sample
    • G01N2201/0664—Using two ways, i.e. two devices in same path in one sample
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/128—Alternating sample and standard or reference part in one path
    • G01N2201/1281—Reflecting part, i.e. for autocollimation

Landscapes

  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Communication System (AREA)
  • Forging (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
AT88304040T 1987-05-13 1988-05-05 Kontrollgeraet mit verwendung durchgelassenen lichtes. ATE94283T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878711309A GB8711309D0 (en) 1987-05-13 1987-05-13 Monitoring equipment
EP88304040A EP0298584B1 (de) 1987-05-13 1988-05-05 Kontrollgerät mit Verwendung durchgelassenen Lichtes

Publications (1)

Publication Number Publication Date
ATE94283T1 true ATE94283T1 (de) 1993-09-15

Family

ID=10617271

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88304040T ATE94283T1 (de) 1987-05-13 1988-05-05 Kontrollgeraet mit verwendung durchgelassenen lichtes.

Country Status (5)

Country Link
US (1) US4883972A (de)
EP (1) EP0298584B1 (de)
AT (1) ATE94283T1 (de)
DE (1) DE3883876T2 (de)
GB (1) GB8711309D0 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402207B (en) * 2003-05-13 2006-03-22 Premier Diagnostics Ltd Vehicle test apparatus
US7180594B2 (en) * 2004-05-27 2007-02-20 Finesse Instruments, Llc. Method and apparatus for verifying proper operation of a photometric device, such as a cell density probe
US8899097B2 (en) * 2011-10-18 2014-12-02 The Boeing Company Airborne impurities detection
CN110018092B (zh) * 2018-01-09 2022-02-22 宝山钢铁股份有限公司 一种燃气锅炉烟气颗粒物检测装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1573195C3 (de) * 1951-01-28 1974-05-30 Guidi Guido Novello Bologna Guidelli (Italien) Vorrichtung zur Ermittlung des Lichtdurchlässigkeitsgrades der Atmosphäre
GB1248961A (en) * 1968-11-19 1971-10-06 Allen Lonford & Associates Ltd Improvements in and relating to a system and apparatus for measuring the optical transmittance of the atmosphere
FR2074695A6 (de) * 1970-01-19 1971-10-08 Compteurs Comp D
US3850529A (en) * 1972-10-26 1974-11-26 R Brugger Device for calibrating a transmissometer
US3872315A (en) * 1973-12-21 1975-03-18 Babcock & Wilcox Co Radiation sensitive fluid analyzer
US4017193A (en) * 1976-03-02 1977-04-12 Leo Loiterman Apparatus for measuring the transmittance or opacity of a gaseous medium carrying particulate matter through a conduit
JPS59187246A (ja) * 1983-04-08 1984-10-24 Nohmi Bosai Kogyo Co Ltd 光電式煙感知器の機能検査装置
DE3477514D1 (en) * 1983-07-22 1989-05-03 Oki Electric Ind Co Ltd Apparatus for measuring optical transmission factor

Also Published As

Publication number Publication date
GB8711309D0 (en) 1987-06-17
EP0298584A3 (en) 1990-06-27
DE3883876D1 (de) 1993-10-14
US4883972A (en) 1989-11-28
EP0298584B1 (de) 1993-09-08
EP0298584A2 (de) 1989-01-11
DE3883876T2 (de) 1994-01-27

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties