ZA822221B - Gas analyzer with fluid curtain - Google Patents

Gas analyzer with fluid curtain

Info

Publication number
ZA822221B
ZA822221B ZA822221A ZA822221A ZA822221B ZA 822221 B ZA822221 B ZA 822221B ZA 822221 A ZA822221 A ZA 822221A ZA 822221 A ZA822221 A ZA 822221A ZA 822221 B ZA822221 B ZA 822221B
Authority
ZA
South Africa
Prior art keywords
gas analyzer
fluid curtain
curtain
fluid
analyzer
Prior art date
Application number
ZA822221A
Other languages
English (en)
Inventor
R Rice
M Boissvain
R Dubin
Original Assignee
Measurex Corp
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 Measurex Corp filed Critical Measurex Corp
Publication of ZA822221B publication Critical patent/ZA822221B/xx

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)
  • Sampling And Sample Adjustment (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
ZA822221A 1981-04-24 1982-03-31 Gas analyzer with fluid curtain ZA822221B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/257,063 US4413911A (en) 1981-04-24 1981-04-24 Gas analyzer with fluid curtain

Publications (1)

Publication Number Publication Date
ZA822221B true ZA822221B (en) 1983-02-23

Family

ID=22974729

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA822221A ZA822221B (en) 1981-04-24 1982-03-31 Gas analyzer with fluid curtain

Country Status (7)

Country Link
US (1) US4413911A (xx)
EP (1) EP0064200B1 (xx)
JP (1) JPS57184954A (xx)
CA (1) CA1177666A (xx)
DE (1) DE3276721D1 (xx)
FI (1) FI821421L (xx)
ZA (1) ZA822221B (xx)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606644A (en) * 1983-07-12 1986-08-19 Measurex Corporation Gas measuring apparatus with means to reduce thermal radiation effects
GB2148487B (en) * 1983-10-13 1987-01-14 Perkins Engines Group Apparatus for measuring smoke density
US4589775A (en) * 1983-11-23 1986-05-20 R. J. Reynolds Tobacco Company Apparatus and method for accumulating and measuring sidestream smoke produced by a smoking material
DE3431164A1 (de) * 1984-02-08 1985-08-14 Gerhard 7262 Althengstett Kurz Staubsauger
DE3838622A1 (de) * 1988-11-15 1990-05-17 Heinz Meitinger Zusatzeinrichtung fuer optoelektronische pruefsysteme
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
US5353629A (en) * 1991-07-05 1994-10-11 L. L. Churchill Limited Smoke meter
DE4132926C2 (de) * 1991-10-04 1994-01-20 Grundig Emv Anordnung zum Schutz der Meßoptik einer Meßzelle eines Abgastestgerätes vor Verschmutzung durch einen Abgasstrom
GB2260809B (en) * 1991-10-22 1996-04-03 Marconi Gec Ltd Exhaust gas particle sensor
US5359907A (en) * 1992-11-12 1994-11-01 Horiba Instruments, Inc. Method and apparatus for dry particle analysis
DE19531263C2 (de) * 1995-08-25 2003-07-03 Bosch Gmbh Robert Vorrichtung zur Messung der Trübung von Rauchgas
US6565352B2 (en) * 2001-04-09 2003-05-20 Ken E. Nielsen Smoke density monitor
US7016039B2 (en) * 2003-02-10 2006-03-21 Hinds Instruments, Inc. Purging light beam paths in optical equipment
JP2005257379A (ja) * 2004-03-10 2005-09-22 Fuji Seiki Mach Works Ltd 氷スラリー濃度測定装置
DE102004028420B3 (de) 2004-06-04 2006-02-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur optischen Detektion von in Abgasen chemischer Prozesse enthaltenen Stoffen
US7319524B2 (en) * 2005-03-28 2008-01-15 Honeywell International, Inc. Air purged optical densitometer
ITBO20070623A1 (it) * 2007-09-13 2009-03-14 Marposs Spa Apparecchiatura per il controllo di parti meccaniche con dispositivi ottici, e relativi dispositivo e metodo di protezione
EP2169385A1 (en) * 2008-09-24 2010-03-31 Siemens Aktiengesellschaft An optical measuring head for a duct gas monitoring system
KR200450317Y1 (ko) 2008-09-29 2010-09-24 동우옵트론 주식회사 산업용 굴뚝의 가스 측정장치의 인시츄 프로브 장치
CN102564994B (zh) * 2011-12-31 2014-12-24 聚光科技(杭州)股份有限公司 在位式气体测量方法和装置
US9121793B2 (en) * 2012-03-21 2015-09-01 Li-Cor, Inc. Semi-open-path gas analysis systems and methods
CN103335970A (zh) * 2013-06-28 2013-10-02 聚光科技(杭州)股份有限公司 烟气脱硝监测系统及方法
JP6561587B2 (ja) * 2015-05-29 2019-08-21 富士電機株式会社 分析装置および排ガス処理システム
US11781969B2 (en) * 2020-11-18 2023-10-10 Kidde Technologies, Inc. Clean gas curtain to prevent particle buildup during concentration measurement
DE102022131982B3 (de) 2022-12-02 2024-05-08 Sick Ag Gasanalysevorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628028A (en) * 1968-03-01 1971-12-14 Honeywell Inc Window cleaning apparatus for photometric instruments
US3833305A (en) * 1969-09-17 1974-09-03 Commercial Electronics Inc Gas analyzing apparatus
US3895233A (en) * 1972-10-26 1975-07-15 Bailey Meter Co Gas analyzer
US3838925A (en) * 1972-12-07 1974-10-01 Baldwin Electronics Inc Photoelectric opacity measuring system
DE2521934C3 (de) * 1975-05-16 1978-11-02 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Vorrichtung zur Bestimmung der Konzentrationen von Komponenten eines Abgasgemisches
US4225243A (en) * 1978-06-26 1980-09-30 Measurex Corporation Gas measuring apparatus with standardization means, and method therefor
EP0006749B1 (en) * 1978-06-26 1984-02-22 Measurex Corporation Method and apparatus for measuring gas, including standardisation
US4205550A (en) * 1979-03-12 1980-06-03 Econics Corporation Sample chamber for gas analyzer
US4277131A (en) * 1980-01-29 1981-07-07 The United States Of America As Represented By The Administrator Of The United States Environmental Protection Agency Antifouling window assembly

Also Published As

Publication number Publication date
US4413911A (en) 1983-11-08
EP0064200B1 (en) 1987-07-08
FI821421A0 (fi) 1982-04-23
JPS57184954A (en) 1982-11-13
JPH0239735B2 (xx) 1990-09-06
FI821421L (fi) 1982-10-25
EP0064200A3 (en) 1983-11-30
EP0064200A2 (en) 1982-11-10
DE3276721D1 (en) 1987-08-13
CA1177666A (en) 1984-11-13

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