Device and method for measurement of incident power and energy

Details Device and method for measurement of incident power and energy Device and method for measurement of incident power and energy

2006-12-26

2006-12-26

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S238000, C356S216000

Reexamination Certificate

active

07154077

ABSTRACT:
Devices and methods for measurement of energy from a defined source having increased accuracy in measuring low energies. The device comprises a housing containing sensors. A first sensor receives energy from the source and produces a first output. A second sensor receives ambient energy only and produces a second output. Subtraction of the second output from the first output produces a more accurate corrected output. The method includes providing a housing containing a first sensor and a second sensor and directing energy from the defined source to a surface of the first sensor thereby causing the first sensor to produce a first output while only ambient energy from sources other than the defined source is applied to a surface of the second sensor which produce a second output that is subtracted from the first output producing a corrected output.

REFERENCES:
patent: 5376783 (1994-12-01), Vecht et al.
patent: 5826982 (1998-10-01), Schieferdecker et al.

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