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GB2291713A - Detector device - Google Patents

Detector device

Info

Publication number
GB2291713A
GB2291713A GB9519848A GB9519848A GB2291713A GB 2291713 A GB2291713 A GB 2291713A GB 9519848 A GB9519848 A GB 9519848A GB 9519848 A GB9519848 A GB 9519848A GB 2291713 A GB2291713 A GB 2291713A
Authority
GB
United Kingdom
Prior art keywords
window
detector device
passage
gas
sample gas
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.)
Withdrawn
Application number
GB9519848A
Other versions
GB9519848D0 (en
Inventor
Howard William Lightfoot
Christopher David Jones
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.)
ENVIRO SYSTEMS Ltd
Original Assignee
ENVIRO SYSTEMS Ltd
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 ENVIRO SYSTEMS Ltd filed Critical ENVIRO SYSTEMS Ltd
Publication of GB9519848D0 publication Critical patent/GB9519848D0/en
Publication of GB2291713A publication Critical patent/GB2291713A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

There is disclosed a detector device for detection of gas-borne contaminant having a sample gas flow passage and a window into said passage for ionising radiation and shield means interposing a flow of shielding gas between said window and said sample gas flow against contamination of said window. <IMAGE>
GB9519848A 1993-03-30 1994-03-21 Detector device Withdrawn GB2291713A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939306556A GB9306556D0 (en) 1993-03-30 1993-03-30 Detector device
PCT/GB1994/000575 WO1994023292A1 (en) 1993-03-30 1994-03-21 Detector device

Publications (2)

Publication Number Publication Date
GB9519848D0 GB9519848D0 (en) 1995-11-29
GB2291713A true GB2291713A (en) 1996-01-31

Family

ID=10732963

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939306556A Pending GB9306556D0 (en) 1993-03-30 1993-03-30 Detector device
GB9519848A Withdrawn GB2291713A (en) 1993-03-30 1994-03-21 Detector device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939306556A Pending GB9306556D0 (en) 1993-03-30 1993-03-30 Detector device

Country Status (5)

Country Link
EP (1) EP0692095A1 (en)
JP (1) JPH08508341A (en)
AU (1) AU6261994A (en)
GB (2) GB9306556D0 (en)
WO (1) WO1994023292A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705185A1 (en) * 1976-02-27 1977-09-01 Varian Associates PROCEDURE FOR ANALYZING GAS MIXTURES AND PERFORMING THE PROCESS OF APPROPRIATE ELECTRON TRAP DETECTORS
EP0147521A1 (en) * 1983-08-24 1985-07-10 Matter + Siegmann AG Control method for burning processes
EP0524022A1 (en) * 1991-07-19 1993-01-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Gas detection device and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705185A1 (en) * 1976-02-27 1977-09-01 Varian Associates PROCEDURE FOR ANALYZING GAS MIXTURES AND PERFORMING THE PROCESS OF APPROPRIATE ELECTRON TRAP DETECTORS
EP0147521A1 (en) * 1983-08-24 1985-07-10 Matter + Siegmann AG Control method for burning processes
EP0524022A1 (en) * 1991-07-19 1993-01-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Gas detection device and method

Also Published As

Publication number Publication date
GB9519848D0 (en) 1995-11-29
JPH08508341A (en) 1996-09-03
GB9306556D0 (en) 1993-05-26
AU6261994A (en) 1994-10-24
WO1994023292A1 (en) 1994-10-13
EP0692095A1 (en) 1996-01-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)