Broadband radiometer

Details Broadband radiometer Broadband radiometer

G - Physics

01

J

G01J 1/42 (2006.01) G01J 1/04 (2006.01)

Patent

CA 2107847

BROADBAND RADIOMETER Abstract of the Disclosure A broadband radiometer including (a) an optical integrating sphere having a generally spherical integrating chamber and an entry port for receiving light (e.g., having visible and ultraviolet fractions), (b) a first optical radiation detector for receiving light from the sphere and producing an electrical output signal corresponding to broadband radiation, (c) a second optical radiation detector fox receiving light from the sphere and producing an elec- trical output signal corresponding to a predetermined wave- length fraction of the broadband radiation, and (d) an out- put for producing an electrical signal which is proportional to the difference between the two electrical output signals. The radiometer is very, for example, in measuring the absolute amount of ultraviolet light present in a given light sample.

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