CA1106468A - Method of and apparatus for monitoring the advance of discolouration along a detector tube - Google Patents

Method of and apparatus for monitoring the advance of discolouration along a detector tube

Info

Publication number
CA1106468A
CA1106468A CA281,328A CA281328A CA1106468A CA 1106468 A CA1106468 A CA 1106468A CA 281328 A CA281328 A CA 281328A CA 1106468 A CA1106468 A CA 1106468A
Authority
CA
Canada
Prior art keywords
tube
advance
electrical signals
series
discolouration
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
CA281,328A
Other languages
English (en)
French (fr)
Inventor
Ulrich Heim
Kurt Leichnitz
Peter Wiesner
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Application granted granted Critical
Publication of CA1106468A publication Critical patent/CA1106468A/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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/20—Oxygen containing
    • Y10T436/204998—Inorganic carbon compounds
    • Y10T436/205831—Carbon monoxide only

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
CA281,328A 1976-06-26 1977-06-24 Method of and apparatus for monitoring the advance of discolouration along a detector tube Expired CA1106468A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2628790A DE2628790C2 (de) 1976-06-26 1976-06-26 Gasmeß- und Warnvorrichtung mit einem von dem nachzuweisenden Gas durchströmten Prüfröhrchen
DEP2628790.1 1976-06-26

Publications (1)

Publication Number Publication Date
CA1106468A true CA1106468A (en) 1981-08-04

Family

ID=5981536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA281,328A Expired CA1106468A (en) 1976-06-26 1977-06-24 Method of and apparatus for monitoring the advance of discolouration along a detector tube

Country Status (8)

Country Link
US (1) US4123227A (enExample)
JP (1) JPS6046651B2 (enExample)
AU (1) AU502040B2 (enExample)
CA (1) CA1106468A (enExample)
DE (1) DE2628790C2 (enExample)
FR (1) FR2356133A1 (enExample)
GB (1) GB1578793A (enExample)
NL (1) NL182913C (enExample)

Families Citing this family (36)

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DE2814843C2 (de) * 1978-04-06 1980-05-29 Draegerwerk Ag, 2400 Luebeck Gasmeß- und Warnvorrichtung
DE2840867C2 (de) * 1978-09-20 1983-04-21 Drägerwerk AG, 2400 Lübeck Gasmeßvorrichtung mit einem von dem nachzuweisenden Gas durchströmten Prüfröhrchen
DE2915367A1 (de) * 1979-04-14 1980-10-30 Max Planck Gesellschaft Optische indikatormessung
US4366384A (en) * 1980-06-18 1982-12-28 Cutter Laboratories, Inc. Air bubble detector
US4500793A (en) * 1982-02-11 1985-02-19 Ebara Corporation Apparatus for monitoring inside of treating column
US4450722A (en) * 1982-07-26 1984-05-29 The Babcock & Wilcox Company Water level gauge with fault detector
US4654535A (en) * 1982-09-30 1987-03-31 Wolske James P Meniscus position detector with detector at the focal plane of the lens formed by tube and liquid
US4774676A (en) * 1984-11-07 1988-09-27 Waukee Engineering Company Linear digital flowmeter
DE3605047C1 (en) * 1985-01-15 1987-08-20 Draegerwerk Ag Gas measuring and warning device
DE3501093C1 (de) * 1985-01-15 1986-06-12 Drägerwerk AG, 2400 Lübeck Gasmess- und Warnvorrichtung
DE3503234C1 (de) * 1985-01-31 1986-04-03 Drägerwerk AG, 2400 Lübeck Kolorimetrisches Gasdiffusions-Prüfröhrchen
DE3543324A1 (de) * 1985-12-07 1987-06-11 Draegerwerk Ag Verfahren zur messung von flaechigen verfaerbungszonen eines indikatortraegers und vorrichtung hierzu
EP0228217A1 (en) * 1985-12-18 1987-07-08 LUCAS INDUSTRIES public limited company Liquid level detection
US5057280A (en) * 1986-02-18 1991-10-15 Dragerwerk Aktiengesellschaft Gas measuring and warning device
DE3621009A1 (de) * 1986-06-23 1988-01-07 Truetzschler & Co Vorrichtung zur erfassung des fuellstandes in einem fasermaterialspeicher, insbesondere fuer spinnereivorbereitungsmaschinen
NO864140D0 (no) * 1986-10-16 1986-10-16 Papirind Forskningsinst Fremgangsmaate ved kvalitetsbestemmelse av oppdrettsfisk, samt anordning for utfoerelse av fremgangsmaaten.
EP0312293A3 (en) * 1987-10-16 1990-03-14 O.C.T. Optical Chemical Technologies Limited Sensing device for analysis
DE3821831A1 (de) * 1988-06-29 1990-01-04 Draegerwerk Ag Automatisierte vorrichtung und verfahren zum nachweis gasfoermiger komponenten in luft mittels eines kolorimetrischen pruefroehrchens
DE4303858C2 (de) * 1993-02-10 1995-08-31 Draegerwerk Ag Vorrichtung für den kolorimetrischen Nachweis von gas- und/oder dampfförmigen Komponenten eines Gasgemisches aufgrund der Verfärbung einer in einem Kanal angeordneten Reaktionszone
CA2186805C (en) * 1995-12-01 2001-03-27 Christopher C. Jung Apparatus and method for sensing fluid level
DE19619391C1 (de) * 1996-05-14 1997-07-03 Draegerwerk Ag Verfahren zur Bestimmung des Anteils eines Gases in einer Gasprobe
US7786457B2 (en) * 2006-06-28 2010-08-31 Alcon, Inc. Systems and methods of non-invasive level sensing for a surgical cassette
US7982201B2 (en) * 2009-09-08 2011-07-19 Jadak, Llc System and method for detection of liquid level in a vessel
WO2012030595A2 (en) 2010-08-30 2012-03-08 Alcon Research, Ltd. Optical sensing system including electronically switched optical magnification
US11175234B2 (en) 2010-09-07 2021-11-16 Nextteq Llc System for visual and electronic reading of colorimetric tubes
CA2810650C (en) * 2010-09-07 2019-12-03 Nextteq Llc System for visual and electronic reading of colorimetric tubes
DE102012014504A1 (de) * 2012-07-20 2014-01-23 Dräger Safety AG & Co. KGaA Gasmesssystem
DE102013006542B4 (de) * 2013-04-16 2017-03-23 Dräger Safety AG & Co. KGaA Messvorrichtung, Reaktionsträger und Messverfahren
DE102013006545B4 (de) * 2013-04-16 2020-02-27 Dräger Safety AG & Co. KGaA Messvorrichtung und Messverfahren für einen Reaktionsträger
DE102013009642B4 (de) * 2013-06-08 2019-10-10 Dräger Safety AG & Co. KGaA Messsystem, Reaktionsträger, Messverfahren und optischer Strömungssensor
EP3265787A4 (en) 2015-03-05 2018-11-07 Nextteq, LLC Gas detector tube template and methods of reading gas detector tubes
CN104808651B (zh) * 2015-04-20 2017-09-29 中国石油化工股份有限公司青岛安全工程研究院 化工装置关键参数合理报警限的测算方法
CN106094684A (zh) * 2016-07-12 2016-11-09 中国石油化工股份有限公司 加热炉的烘炉升温监测报警系统
CN106224930A (zh) * 2016-07-12 2016-12-14 中国石油化工股份有限公司 一种锅炉的升温升压监测报警方法
DE102017010220A1 (de) * 2017-11-03 2019-05-09 Dräger Safety AG & Co. KGaA Überwachungsvorrichtung und Verfahren zum Überwachen eines Umgebungsgases
WO2020047606A1 (en) * 2018-09-06 2020-03-12 The University Of Sydney Systems, sensors and methods for determining a concentration of an analyte

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594514A (en) * 1946-04-16 1952-04-29 Gen Aniline & Film Corp Comparison type densitometer
US2800397A (en) * 1953-08-18 1957-07-23 Standard Oil Co Method and apparatus for analyzing a reactive gas
DE1598021A1 (de) * 1967-05-02 1970-03-26 Auergesellschaft Gmbh Vorrichtung zur Kenntlichmachung von Gaskonzentrationen
JPS4820080Y1 (enExample) * 1969-02-22 1973-06-08
US3662176A (en) * 1970-04-06 1972-05-09 Bio Physics Systems Inc Photo-optical particle analysis method and apparatus
US3740143A (en) * 1970-10-30 1973-06-19 Technicon Instr Automatic apparatus for determining the percentage population of particulates in a medium
DE2113711A1 (de) * 1971-03-22 1972-09-28 Siemens Ag Verfahren und Vorrichtung zum automatischen Messen und UEberwachen der Fuellstaende von Fluessigkeitsbehaeltern
US3870469A (en) * 1973-04-30 1975-03-11 Nalco Chemical Co Apparatus and method for monitoring the presence of volatile organic lead compounds
US3932132A (en) * 1973-07-31 1976-01-13 Olympus Optical Co., Ltd. System for detecting the particular chemical constituent of a fluid
DE2339696A1 (de) * 1973-08-06 1975-02-27 Metrawatt Gmbh Verfahren zur fotometrischen bestimmung der groesse und/oder absetzgeschwindigkeit, der in einer fluessigkeit suspendierten feststoffteilchen
DE2407224C3 (de) * 1974-02-15 1980-01-10 H. Maihak Ag, 2000 Hamburg Vorrichtung zur Bestimmung einer Komponente in einer Gasmischung
US3990849A (en) * 1975-02-07 1976-11-09 Technicon Instruments Corporation Separation of cells from liquid components of blood
DE2508637C3 (de) * 1975-02-28 1979-11-22 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V., 3400 Goettingen Anordnung zur optischen Messung von Blutgasen

Also Published As

Publication number Publication date
NL182913C (nl) 1988-06-01
DE2628790B1 (de) 1977-11-10
NL7705066A (nl) 1977-12-28
FR2356133B1 (enExample) 1981-01-02
DE2628790C2 (de) 1978-07-06
US4123227A (en) 1978-10-31
AU502040B2 (en) 1979-07-12
AU2632977A (en) 1979-01-04
FR2356133A1 (fr) 1978-01-20
GB1578793A (en) 1980-11-12
JPS5325496A (en) 1978-03-09
JPS6046651B2 (ja) 1985-10-17
NL182913B (nl) 1988-01-04

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Legal Events

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MKEX Expiry