Patent ID: 6144036
Filing Date: 2000-11-07
Classification: G01J

Abstract:
An ultraviolet radiation dosimeter for obtaining a measurement of ultraviolet radiation from an ultraviolet radiation source, the dosimeter comprising:an electric charge generating unit 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;an electric charge storage unit electrically connected in parallel with the generating unit and operable to store the electric charge produced thereby;an directional coupler electrically connected in series between the generating unit and the storage unit for allowing the electric charge to flow in only a prescribed direction therebetween;an electric charge limiter electrically connected in series with the directional coupler for limiting the flow of the electric charge through the directional coupler; andan electrometric unit electrically connected in parallel with the storage unit and operable to take a measurement of the electric charge stored in the storaae unit;wherein the dosimeter is configured to be powered solely by the ultraviolet radiation source.