Apparatus and method for monitoring radiant energy signals with

Details Apparatus and method for monitoring radiant energy signals with Apparatus and method for monitoring radiant energy signals with

1990-09-05

1992-08-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250559, H01J 4014

Patent

active

051381494

ABSTRACT:
A sensor board for use with an endpoint controller which monitors light intensity is provided. The sensor board can provide a dynamic range of up to five million because a constant current driver and phase sensitive detector help eliminate noise from the detected signal. The sensor board can also subtract a DC voltage offset from the detected signal and amplify the difference to provide increased resolution of small changes in the detected signal.

REFERENCES:
patent: 4061925 (1977-12-01), van der Gaag et al.
patent: 4136940 (1979-01-01), Lin
patent: 4462860 (1984-07-01), Szmanda
patent: 4469424 (1984-09-01), Matsui et al.
patent: 4569717 (1986-02-01), Ohgami et al.
patent: 4647172 (1987-03-01), Batchelder et al.
patent: 4673807 (1987-06-01), Kobayashi et al.
patent: 4791286 (1988-12-01), Wall
patent: 5015839 (1991-05-01), Tanikoshi

Affiliated with

Also associated with

Rating

Apparatus and method for monitoring radiant energy signals with does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for monitoring radiant energy signals with , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for monitoring radiant energy signals with will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-348265