GB2273779B - Gas detection devices - Google Patents

Gas detection devices

Info

Publication number
GB2273779B
GB2273779B GB9226663A GB9226663A GB2273779B GB 2273779 B GB2273779 B GB 2273779B GB 9226663 A GB9226663 A GB 9226663A GB 9226663 A GB9226663 A GB 9226663A GB 2273779 B GB2273779 B GB 2273779B
Authority
GB
United Kingdom
Prior art keywords
gas detection
detection devices
devices
gas
detection
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 - Fee Related
Application number
GB9226663A
Other versions
GB9226663D0 (en
GB2273779A (en
Inventor
Christopher David Jones
Richard Frederick Griffiths
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9226663A priority Critical patent/GB2273779B/en
Publication of GB9226663D0 publication Critical patent/GB9226663D0/en
Publication of GB2273779A publication Critical patent/GB2273779A/en
Application granted granted Critical
Publication of GB2273779B publication Critical patent/GB2273779B/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
    • 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
GB9226663A 1992-12-22 1992-12-22 Gas detection devices Expired - Fee Related GB2273779B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9226663A GB2273779B (en) 1992-12-22 1992-12-22 Gas detection devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9226663A GB2273779B (en) 1992-12-22 1992-12-22 Gas detection devices

Publications (3)

Publication Number Publication Date
GB9226663D0 GB9226663D0 (en) 1993-02-17
GB2273779A GB2273779A (en) 1994-06-29
GB2273779B true GB2273779B (en) 1996-01-31

Family

ID=10726987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9226663A Expired - Fee Related GB2273779B (en) 1992-12-22 1992-12-22 Gas detection devices

Country Status (1)

Country Link
GB (1) GB2273779B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058447A (en) * 1979-08-27 1981-04-08 Leveson R Photoionization Detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058447A (en) * 1979-08-27 1981-04-08 Leveson R Photoionization Detector

Also Published As

Publication number Publication date
GB9226663D0 (en) 1993-02-17
GB2273779A (en) 1994-06-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971222