FR2061491A5 - - Google Patents

Info

Publication number
FR2061491A5
FR2061491A5 FR7033534A FR7033534A FR2061491A5 FR 2061491 A5 FR2061491 A5 FR 2061491A5 FR 7033534 A FR7033534 A FR 7033534A FR 7033534 A FR7033534 A FR 7033534A FR 2061491 A5 FR2061491 A5 FR 2061491A5
Authority
FR
France
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
FR7033534A
Other languages
French (fr)
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
Original Assignee
COMMERCIAL ELECTRONICS
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 filed Critical COMMERCIAL ELECTRONICS
Application granted granted Critical
Publication of FR2061491A5 publication Critical patent/FR2061491A5/fr
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
FR7033534A 1969-09-17 1970-09-16 Expired FR2061491A5 (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
FR2061491A5 true FR2061491A5 (en) 1971-06-18

Family

ID=25329270

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7033534A Expired FR2061491A5 (en) 1969-09-17 1970-09-16

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
WO1991018277A1 (en) * 1990-05-11 1991-11-28 Albion Instruments Gas analysis system having buffer gas inputs to protect associated optical elements
US5135304A (en) * 1990-05-11 1992-08-04 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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129068C2 (en) * 1991-09-02 1999-05-20 Grundig Ag Arrangement for measuring exhaust gases in internal combustion engines
GB2260809B (en) * 1991-10-22 1996-04-03 Marconi Gec Ltd Exhaust gas particle sensor
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
CN114624307B (en) * 2020-12-11 2023-04-28 西安电子科技大学 Gas sensor cavity based on hydrodynamics

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018277A1 (en) * 1990-05-11 1991-11-28 Albion Instruments Gas analysis system having buffer gas inputs to protect associated optical elements
US5135304A (en) * 1990-05-11 1992-08-04 Boc Health Care, Inc. Gas analysis system having buffer gas inputs to protect associated optical elements
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

Also Published As

Publication number Publication date
DE2044139A1 (en) 1971-11-18
GB1329995A (en) 1973-09-12
CA922538A (en) 1973-03-13
NL7013121A (en) 1971-03-19

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Legal Events

Date Code Title Description
ST Notification of lapse