GB704052A - Improvements in or relating to smokemeters - Google Patents

Improvements in or relating to smokemeters

Info

Publication number
GB704052A
GB704052A GB1158952A GB1158952A GB704052A GB 704052 A GB704052 A GB 704052A GB 1158952 A GB1158952 A GB 1158952A GB 1158952 A GB1158952 A GB 1158952A GB 704052 A GB704052 A GB 704052A
Authority
GB
United Kingdom
Prior art keywords
tube
apertures
photo
cell
air
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
Application number
GB1158952A
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.)
ANTONI LESZEK WACHAL
Anglo Iranian Oil Co Ltd
Original Assignee
ANTONI LESZEK WACHAL
Anglo Iranian Oil Co 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 ANTONI LESZEK WACHAL, Anglo Iranian Oil Co Ltd filed Critical ANTONI LESZEK WACHAL
Priority to GB1158952A priority Critical patent/GB704052A/en
Publication of GB704052A publication Critical patent/GB704052A/en
Expired legal-status Critical Current

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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Measuring Cells (AREA)

Abstract

704,052. Photo-electric smokemeters. ANGLOIRANIAN OIL CO., Ltd., and WACHAL, A. L. May 7, 1952, No. 11589/52. Class 40 (3) In a photo-electric smokemeter in which light passes from a source at one end of a tube, through which smoke circulates, to a photo-cell at the other, the cell and light source are so mounted that they may be positioned at the ends of a tube through which air is circulated for calibrating purposes. As shown, the light source 24 in a housing 23 and a photo-cell 28 are supported from a horizontal rod 5 so that they pivot about this rod into positions at opposite ends of either the test tube 1 through which smoke is circulated or the comparison tube 2 through which air is passed. The application of the invention to measuring the opacity of engine exhaust gases is described. A sample of the exhaust gases passes through a lagged pipe to a chamber 15 entering tube 1 through apertures 12 and leaving through apertures 18, 18<SP>1</SP>. Tube 1 is lagged to prevent condensation of exhaust water. A supply of compressed air enters tube 2 through a pipe 17 and apertures 13 and escapes into end covers 26, 29 of the apertures. This air then enters the smoke tube through apertures 39 in the light source housing and under the serrated surface of the photo-cell 28 finally escaping to the atmosphere through apertures 18, 18<SP>1</SP>. This stream of air prevents the exhaust gases from contacting the light source or the photo-electric cell. When the cell and light source are positioned at opposite ends of the comparison tube the reading of the micrometer is eventually adjusted to a fixed value by means of a rotatable "spade" 27 situated in the air tube.
GB1158952A 1952-05-07 1952-05-07 Improvements in or relating to smokemeters Expired GB704052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1158952A GB704052A (en) 1952-05-07 1952-05-07 Improvements in or relating to smokemeters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1158952A GB704052A (en) 1952-05-07 1952-05-07 Improvements in or relating to smokemeters

Publications (1)

Publication Number Publication Date
GB704052A true GB704052A (en) 1954-02-17

Family

ID=9989014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1158952A Expired GB704052A (en) 1952-05-07 1952-05-07 Improvements in or relating to smokemeters

Country Status (1)

Country Link
GB (1) GB704052A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935909A (en) * 1957-04-18 1960-05-10 Graviner Manufacturing Co Detectors of oil mists and the like
EP0047049A1 (en) * 1980-08-28 1982-03-10 The Babcock & Wilcox Company Opacity monitoring apparatus
GB2257515A (en) * 1991-07-05 1993-01-13 Churchill V L Ltd Smoke meter
GB2274332A (en) * 1993-01-15 1994-07-20 Secr Defence Smoke meter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935909A (en) * 1957-04-18 1960-05-10 Graviner Manufacturing Co Detectors of oil mists and the like
EP0047049A1 (en) * 1980-08-28 1982-03-10 The Babcock & Wilcox Company Opacity monitoring apparatus
GB2257515A (en) * 1991-07-05 1993-01-13 Churchill V L Ltd Smoke meter
GB2257515B (en) * 1991-07-05 1995-07-12 Churchill V L Ltd Smoke meter
GB2274332A (en) * 1993-01-15 1994-07-20 Secr Defence Smoke meter

Similar Documents

Publication Publication Date Title
Dasch Particulate and gaseous emissions from wood-burning fireplaces
SE7707450L (en) CONTINUOUS GAS ANALYSIS DEVICE
GB1383041A (en) Fire-detecting systems involving sampling the atmosphere
US2654242A (en) Measurement of water vapor in gases
GB704052A (en) Improvements in or relating to smokemeters
ES457843A1 (en) Probe for measuring gaseous components
US3224838A (en) Gas testing
US2053121A (en) Process and apparatus for analyzing gases
GB645576A (en) Improvements in or relating to infra-red gas analysing apparatus
US3094392A (en) Gas detection
GB922410A (en) Improvements in or relating to the measurement of gases in metals
US3976457A (en) In-stack filter cell
US2444613A (en) Low humidity meter
US2935866A (en) Apparatus for measuring the carbon level of furnace gases
Campbell et al. Effect of water and carbon dioxide in chemiluminescent measurement of oxides of nitrogen
GB614633A (en) Exhaust gas analysis apparatus
FR2455338A1 (en) FUEL FAILURE DETECTION AND LOCATION APPARATUS FOR NUCLEAR REACTOR
GB840768A (en) Methods of and apparatus for the measurement or indication of smoke density
GB976356A (en) Improvements in and relating to the quantitative and qualitative determination of gases for the testing of materials
JPS51147383A (en) Gas sampling device for an analysis device
GB818761A (en) Improvements in or relating to measuring apparatus, more especially for electric devices for testing flue gas
SU1101712A1 (en) Device for preparation of gas samples
SU67099A1 (en) Method and instrument for measuring humidity at low temperatures
Zoller et al. Trace metals in the Antarctic atmosphere
US3460908A (en) Sample admission system for a flame ionization contaminant detector