CA2271187A1 - Differential gas analyzer - Google Patents

Differential gas analyzer Download PDF

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Publication number
CA2271187A1
CA2271187A1 CA 2271187 CA2271187A CA2271187A1 CA 2271187 A1 CA2271187 A1 CA 2271187A1 CA 2271187 CA2271187 CA 2271187 CA 2271187 A CA2271187 A CA 2271187A CA 2271187 A1 CA2271187 A1 CA 2271187A1
Authority
CA
Canada
Prior art keywords
gas
differential
sensors
output signals
pressure
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.)
Granted
Application number
CA 2271187
Other languages
French (fr)
Other versions
CA2271187C (en
Inventor
Stephen Hunt
Adrian N. Dowling
Roy A. Young
David B. Layzell
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.)
QUBIT SYSTEMS Inc
Queens University at Kingston
Original Assignee
QUBIT SYSTEMS Inc
Queens University at Kingston
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 QUBIT SYSTEMS Inc, Queens University at Kingston filed Critical QUBIT SYSTEMS Inc
Priority to CA 2271187 priority Critical patent/CA2271187C/en
Publication of CA2271187A1 publication Critical patent/CA2271187A1/en
Application granted granted Critical
Publication of CA2271187C publication Critical patent/CA2271187C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0006—Calibrating gas analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A method and apparatus for measuring differential and absolute concentrations of a selected gas, preferably oxygen, in two flowing gas streams is described. A
reference gas and a sample gas in separate gas flow paths are passed at selected temperature, pressure and flow rate over a pair of gas sensors, connected in series with their cathodes or anodes connected together, which produce output signals proportional to the differential selected gas concentration between the sensors and the absolute selected gas pressure in each sensor. The output signals may be amplified and recorded by any conventional means.
CA 2271187 1999-05-06 1999-05-06 Differential gas analyzer Expired - Fee Related CA2271187C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2271187 CA2271187C (en) 1999-05-06 1999-05-06 Differential gas analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2271187 CA2271187C (en) 1999-05-06 1999-05-06 Differential gas analyzer

Publications (2)

Publication Number Publication Date
CA2271187A1 true CA2271187A1 (en) 2000-11-06
CA2271187C CA2271187C (en) 2003-11-11

Family

ID=29425902

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2271187 Expired - Fee Related CA2271187C (en) 1999-05-06 1999-05-06 Differential gas analyzer

Country Status (1)

Country Link
CA (1) CA2271187C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117405848A (en) * 2023-12-14 2024-01-16 杭州泽天春来科技股份有限公司 Residual chlorine on-line analysis system, method and computer readable storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117405848A (en) * 2023-12-14 2024-01-16 杭州泽天春来科技股份有限公司 Residual chlorine on-line analysis system, method and computer readable storage medium
CN117405848B (en) * 2023-12-14 2024-04-12 杭州泽天春来科技股份有限公司 Residual chlorine on-line analysis system, method and computer readable storage medium

Also Published As

Publication number Publication date
CA2271187C (en) 2003-11-11

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EEER Examination request
MKLA Lapsed

Effective date: 20190506