IT1064608B - Ionic fire warning instrumentation detector - has measuring chamber and reference chamber containing radioactive sources - Google Patents

Ionic fire warning instrumentation detector - has measuring chamber and reference chamber containing radioactive sources

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Publication number
IT1064608B
IT1064608B IT2505276A IT2505276A IT1064608B IT 1064608 B IT1064608 B IT 1064608B IT 2505276 A IT2505276 A IT 2505276A IT 2505276 A IT2505276 A IT 2505276A IT 1064608 B IT1064608 B IT 1064608B
Authority
IT
Italy
Prior art keywords
chamber
measuring chamber
radioactive sources
containing radioactive
fire warning
Prior art date
Application number
IT2505276A
Other languages
Italian (it)
Original Assignee
Inst Nat Radio Elements
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 Inst Nat Radio Elements filed Critical Inst Nat Radio Elements
Application granted granted Critical
Publication of IT1064608B publication Critical patent/IT1064608B/en

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Abstract

The ionic detector comprises two ionisation chambers each with an electrically conducting casing which forms one electrode. Inside the chamber is a second electrode and a radioactive alpha source. The case of the measuring chamber is partially open while that of the reference chamber is closed. The radioactive source in the measuring chamber is applied to a cylindrical plane surface and the second electrode comprises a wire wound concentrically and connected to a shaft. The shaft extends into the reference chamber and has a plane surface which is parallel to the casing where the radioactive source for this chamber is applied.
IT2505276A 1975-07-11 1976-07-06 Ionic fire warning instrumentation detector - has measuring chamber and reference chamber containing radioactive sources IT1064608B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE831296 1975-07-11

Publications (1)

Publication Number Publication Date
IT1064608B true IT1064608B (en) 1985-02-25

Family

ID=3861234

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2505276A IT1064608B (en) 1975-07-11 1976-07-06 Ionic fire warning instrumentation detector - has measuring chamber and reference chamber containing radioactive sources

Country Status (1)

Country Link
IT (1) IT1064608B (en)

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