Radiometer including means for alternately measuring both power

Details Radiometer including means for alternately measuring both power Radiometer including means for alternately measuring both power

1991-04-29

1992-08-18

Rosenberger, Richard A.

Optics: measuring and testing

Photometers

Photoelectric

356 51, 356225, 2503383, G01J 104

Patent

active

051393310

ABSTRACT:
A pyroelectric detector is provided to measure the energy of pulsed light. To measure the power of continuous wave light (CW light), the pyroelectric detector is releasably attached to optical sampling apparatus which divides the CW light into pulsed light. Means are included to inform processor circuitry in the read-out electronics that the detector is attached to the optical chopper. The processor circuitry then calculates the power of the CW light given the energy of the pulsed light by the pyroelectric detector and the exposure time which is fixed by a crystal clock.

REFERENCES:
patent: 3459945 (1969-08-01), Astheimer et al.
patent: 4828384 (1989-05-01), Plankenhorn et al.

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