GB1329995A - Optical gas analyzing apparatus - Google Patents

Optical gas analyzing apparatus

Info

Publication number
GB1329995A
GB1329995A GB4451770A GB4451770A GB1329995A GB 1329995 A GB1329995 A GB 1329995A GB 4451770 A GB4451770 A GB 4451770A GB 4451770 A GB4451770 A GB 4451770A GB 1329995 A GB1329995 A GB 1329995A
Authority
GB
United Kingdom
Prior art keywords
gas
passages
optical
chamber
openings
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
GB4451770A
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.)
COMMERCIAL ELECTRONICS Inc
Original Assignee
COMMERCIAL ELECTRONICS Inc
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 COMMERCIAL ELECTRONICS Inc filed Critical COMMERCIAL ELECTRONICS Inc
Publication of GB1329995A publication Critical patent/GB1329995A/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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1329995 Optical gas analysers COMMERCIAL ELECTRONICS Inc 17 Sept 1970 [17 Sept 1969] 44517/70 Heading G2J [Also in Division G1] Optical gas analysing apparatus, comprising a gas flow chamber 12 disposed in a housing 6 and having an inlet 14 and outlets 16, the chamber 12 including a pair of spaced walls 26 having aligned openings 38 defining an optical path through the chamber with optical gas analysing means 40, 42 disposed adjacent the openings, is provided with passages 48 and means for passing an uncontaminated fluid along there passages across openings 38 to prevent contact between a gas sample and the analysing means. The analysing means comprises a light source 37 (which may be infrared, ultra-violet or visible) and a detector 44 having a filter 45 to remove unwanted radiation. The passages 48 have cutouts to enable the light to pass through and there cut-outs may be left open or have a transparent window 60. The flow rates of gas and fluid are preferably the same.
GB4451770A 1969-09-17 1970-09-17 Optical gas analyzing apparatus Expired GB1329995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85881769A 1969-09-17 1969-09-17

Publications (1)

Publication Number Publication Date
GB1329995A true GB1329995A (en) 1973-09-12

Family

ID=25329270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4451770A Expired GB1329995A (en) 1969-09-17 1970-09-17 Optical gas analyzing apparatus

Country Status (5)

Country Link
CA (1) CA922538A (en)
DE (1) DE2044139A1 (en)
FR (1) FR2061491A5 (en)
GB (1) GB1329995A (en)
NL (1) NL7013121A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129068A1 (en) * 1991-09-02 1993-03-04 Grundig Emv ARRANGEMENT FOR MEASURING EXHAUST GASES IN COMBUSTION ENGINES
GB2260809A (en) * 1991-10-22 1993-04-28 Marconi Gec Ltd Exhaust gas particle sensor
CN114624307A (en) * 2020-12-11 2022-06-14 西安电子科技大学 Gas sensor cavity based on hydrodynamics

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5153671A (en) * 1990-05-11 1992-10-06 Boc Health Care, Inc. Gas analysis system having buffer gas inputs to protect associated optical elements
US5245405A (en) * 1990-05-11 1993-09-14 Boc Health Care, Inc. Constant pressure gas cell
US5135304A (en) * 1990-05-11 1992-08-04 Boc Health Care, Inc. Gas analysis system having buffer gas inputs to protect associated optical elements
DE102004028420B3 (en) * 2004-06-04 2006-02-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for the optical detection of substances contained in exhaust gases of chemical processes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129068A1 (en) * 1991-09-02 1993-03-04 Grundig Emv ARRANGEMENT FOR MEASURING EXHAUST GASES IN COMBUSTION ENGINES
DE4129068C2 (en) * 1991-09-02 1999-05-20 Grundig Ag Arrangement for measuring exhaust gases in internal combustion engines
GB2260809A (en) * 1991-10-22 1993-04-28 Marconi Gec Ltd Exhaust gas particle sensor
US5374992A (en) * 1991-10-22 1994-12-20 Gec-Marconi Limited Exhaust gas particle sensor
GB2260809B (en) * 1991-10-22 1996-04-03 Marconi Gec Ltd Exhaust gas particle sensor
CN114624307A (en) * 2020-12-11 2022-06-14 西安电子科技大学 Gas sensor cavity based on hydrodynamics
CN114624307B (en) * 2020-12-11 2023-04-28 西安电子科技大学 Gas sensor cavity based on hydrodynamics

Also Published As

Publication number Publication date
DE2044139A1 (en) 1971-11-18
FR2061491A5 (en) 1971-06-18
CA922538A (en) 1973-03-13
NL7013121A (en) 1971-03-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees