Method and apparatus for measuring low power signals

Details Method and apparatus for measuring low power signals Method and apparatus for measuring low power signals

1998-06-25

1999-09-28

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214A, 250214B, 356215, G01V 904, G01J 144

Patent

active

059592915

ABSTRACT:
A method and apparatus for measuring very low light signals including integrating a signal from a photo diode, avalanche photo diode, photomultiplier tube or the like, digitally sampling the integrator output more than two times during each integration period, fitting a curve to the multiple digitized readings to calculate the integration slope for each integration period and determining the original signal from the calculated integration slope.

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