FR2210291A5 - - Google Patents

Info

Publication number
FR2210291A5
FR2210291A5 FR7343447A FR7343447A FR2210291A5 FR 2210291 A5 FR2210291 A5 FR 2210291A5 FR 7343447 A FR7343447 A FR 7343447A FR 7343447 A FR7343447 A FR 7343447A FR 2210291 A5 FR2210291 A5 FR 2210291A5
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
FR7343447A
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
Application granted granted Critical
Publication of FR2210291A5 publication Critical patent/FR2210291A5/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
    • 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

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)
  • Sampling And Sample Adjustment (AREA)
FR7343447A 1972-12-07 1973-12-05 Expired FR2210291A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00313006A US3826577A (en) 1972-12-07 1972-12-07 Gas analyzing apparatus

Publications (1)

Publication Number Publication Date
FR2210291A5 true FR2210291A5 (fr) 1974-07-05

Family

ID=23213971

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7343447A Expired FR2210291A5 (fr) 1972-12-07 1973-12-05

Country Status (4)

Country Link
US (1) US3826577A (fr)
JP (1) JPS4990584A (fr)
DE (1) DE2359654A1 (fr)
FR (1) FR2210291A5 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018277A1 (fr) * 1990-05-11 1991-11-28 Albion Instruments Systeme d'analyse de gaz utilisant des arrivees de gaz tampon en vue de proteger les elements optiques associes
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
EP4350265A1 (fr) 2022-10-07 2024-04-10 Annealsys Four à recuit thermique rapide à étanchéité améliorée

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949234A (en) * 1974-08-26 1976-04-06 Lawrence Peska Associates, Inc. Smoke detector device
US4544273A (en) * 1983-07-29 1985-10-01 Particulate Instruments Smoke opacity meter
US4583859A (en) * 1984-03-30 1986-04-22 The Babcock & Wilcox Company Filter cleaning system for opacity monitor
DE3418629A1 (de) * 1984-05-18 1985-11-21 Meditec Reinhardt Thyzel GmbH, 8501 Heroldsberg Farbstofflaser (ii)
US4680977A (en) * 1985-03-06 1987-07-21 Ivac Corporation Optical flow sensor
US4980571A (en) * 1989-09-22 1990-12-25 Philip Morris Incorporated Methods and apparatus for measuring sidestream smoke
US5353629A (en) * 1991-07-05 1994-10-11 L. L. Churchill Limited Smoke meter
DE4315152A1 (de) * 1993-05-07 1994-11-10 Bosch Gmbh Robert Vorrichtung zur Untersuchung eines Gases
DE102005035932A1 (de) * 2005-07-28 2007-02-08 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optischer Sensor für in-situ Messungen
CN101620181B (zh) * 2008-07-02 2011-01-12 佛山分析仪有限公司 透射式烟度计及测量透射式烟度计有效烟柱长度的方法
CA3076069C (fr) 2019-01-02 2024-01-30 M & J Scientific, Llc Detecteurs de diffusion de lumiere et leurs procedes
CA3076064A1 (fr) * 2019-01-02 2020-07-02 M & J Scientific, Llc Detecteurs de diffusion de lumiere et cellules echantillons pour ceux-ci

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207026A (en) * 1960-03-01 1965-09-21 Graviner Manufacturing Co Apparatus and method for determining the individual and average content of light absorbing fluids
US3381571A (en) * 1962-06-15 1968-05-07 Technicon Corp Spectroscopy apparatus for transmitting light longitudinally of a spectral flame
US3593023A (en) * 1968-09-18 1971-07-13 Beckman Instruments Inc Apparatus and method for exhaust analysis
US3696247A (en) * 1970-11-12 1972-10-03 Lionel D Mcintosh Vehicle exhaust emissions analyzer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018277A1 (fr) * 1990-05-11 1991-11-28 Albion Instruments Systeme d'analyse de gaz utilisant des arrivees de gaz tampon en vue de proteger les elements optiques associes
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
EP4350265A1 (fr) 2022-10-07 2024-04-10 Annealsys Four à recuit thermique rapide à étanchéité améliorée

Also Published As

Publication number Publication date
JPS4990584A (fr) 1974-08-29
US3826577A (en) 1974-07-30
DE2359654A1 (de) 1974-07-18

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Legal Events

Date Code Title Description
ST Notification of lapse