Ultraviolet radiation detector

Details Ultraviolet radiation detector Ultraviolet radiation detector

1975-10-20

1977-04-05

Borchelt, Archie R.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250374, G01J 142

Patent

active

040164241

ABSTRACT:
A system for detecting ultraviolet (UV) radiations and particularly adapted for the detection of fire. Electrical pulses are produced at a rate proportional to the intensity of UV energy received by a UV detector tube. An alarm and/or control function is actuated only when the tube pulse rate and pulse rate duration correspond to predetermined values. In addition, the alarm and/or control function is inhibited when the detector tube is exposed to non-fire created UV energy.

REFERENCES:
patent: 3493753 (1970-02-01), Stowe
patent: 3825760 (1974-07-01), Fletcher et al.
patent: 3917948 (1975-11-01), Strutz

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