Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1998-08-19
2000-11-07
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
G01F 102
Patent
active
061440361
ABSTRACT:
An ultraviolet radiation dosimeter for obtaining a measurement of ultraviolet radiation from an ultraviolet radiation source. The dosimeter comprises an electric charge generating unit which is adapted to be irradiated by the ultraviolet radiation source and operable to produce an electric charge which is proportional to the amount of ultraviolet radiation to which the generating unit is exposed. Electrically connected in parallel with the generating unit is an electric charge storage unit which is operable to store the electric charge produced by the generating unit. Additionally, electrically connected in series between the generating unit and the storage unit is a directional coupler for allowing the electric charge to flow in only a prescribed direction between the generating unit and the storage unit. An electric charge limiter is electrically connected in series with the directional coupler for limiting the flow of the electric charge through the coupler, with an electrometric unit having a display being electrically connected in parallel with the storage unit. The electrometric unit is operable to convert the electric charge to a reading which corresponds to the amount of ultraviolet radiation generated by the ultraviolet radiation source, and presents the reading on the display.
REFERENCES:
patent: 4608492 (1986-08-01), Burnham
patent: 4704535 (1987-11-01), Leber et al.
Gabor Otilia
Hannaher Constantine
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