GB1550334A - Radiation detecting arrangements - Google Patents

Radiation detecting arrangements

Info

Publication number
GB1550334A
GB1550334A GB2743975A GB2743975A GB1550334A GB 1550334 A GB1550334 A GB 1550334A GB 2743975 A GB2743975 A GB 2743975A GB 2743975 A GB2743975 A GB 2743975A GB 1550334 A GB1550334 A GB 1550334A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
radiation detecting
detecting arrangements
arrangements
radiation
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
GB2743975A
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.)
EMI Ltd
Original Assignee
EMI 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

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/12Actuation by presence of radiation or particles, e.g. of infra-red radiation or of ions
GB2743975A 1975-06-28 1975-06-28 Radiation detecting arrangements Expired GB1550334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2743975A GB1550334A (en) 1975-06-28 1975-06-28 Radiation detecting arrangements

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2743975A GB1550334A (en) 1975-06-28 1975-06-28 Radiation detecting arrangements
HK37381A HK37381A (en) 1975-06-28 1981-07-30 Improvements in or relating to radiation delecting arrangements
MY8200072A MY8200072A (en) 1975-06-28 1982-12-30 Improvements in or relating to radiation detecting arrangements

Publications (1)

Publication Number Publication Date
GB1550334A true true GB1550334A (en) 1979-08-15

Family

ID=10259622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2743975A Expired GB1550334A (en) 1975-06-28 1975-06-28 Radiation detecting arrangements

Country Status (1)

Country Link
GB (1) GB1550334A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474209A1 (en) * 1980-01-17 1981-07-24 Graviner Ltd Fire detection devices and explosion
FR2482753A1 (en) * 1980-05-17 1981-11-20 Graviner Ltd Device detection fire and explosion
JPS57182889A (en) * 1981-04-16 1982-11-10 Emi Ltd Flame detector
GB2126713A (en) * 1980-01-17 1984-03-28 Graviner Ltd Improvements in and relating to fire and explosion detection
US5373159A (en) * 1992-09-08 1994-12-13 Spectronix Ltd. Method for detecting a fire condition
US5850182A (en) * 1997-01-07 1998-12-15 Detector Electronics Corporation Dual wavelength fire detection method and apparatus
US5995008A (en) * 1997-05-07 1999-11-30 Detector Electronics Corporation Fire detection method and apparatus using overlapping spectral bands
DE10101457A1 (en) * 2001-01-10 2002-07-18 Infineon Technologies Ag Detection of electromagnetic radiation using two or more optoelectronic semiconductor sensors combined such that the desired output response is obtained

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474209A1 (en) * 1980-01-17 1981-07-24 Graviner Ltd Fire detection devices and explosion
GB2126713A (en) * 1980-01-17 1984-03-28 Graviner Ltd Improvements in and relating to fire and explosion detection
FR2482753A1 (en) * 1980-05-17 1981-11-20 Graviner Ltd Device detection fire and explosion
JPS57182889A (en) * 1981-04-16 1982-11-10 Emi Ltd Flame detector
EP0064811A1 (en) * 1981-04-16 1982-11-17 EMI Limited Flame detector
US4471221A (en) * 1981-04-16 1984-09-11 Emi Limited Infra-red flame detector
JPH0617822B2 (en) 1981-04-16 1994-03-09 ソーン イーエムアイ パテンツ リミテッド Single channel flame detector
US5373159A (en) * 1992-09-08 1994-12-13 Spectronix Ltd. Method for detecting a fire condition
US5850182A (en) * 1997-01-07 1998-12-15 Detector Electronics Corporation Dual wavelength fire detection method and apparatus
US5995008A (en) * 1997-05-07 1999-11-30 Detector Electronics Corporation Fire detection method and apparatus using overlapping spectral bands
DE10101457A1 (en) * 2001-01-10 2002-07-18 Infineon Technologies Ag Detection of electromagnetic radiation using two or more optoelectronic semiconductor sensors combined such that the desired output response is obtained

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950702