OPTICAL_FRINGE_COUNTER

Published:2009/6/22 22:39:00 Author:May | From:SeekIC

For work with interferometer and optical experiments, this fringe counter can be useful. Photo transistor Q1 provides light and dark sensing. As the sensor is moved across the fringe pattern alternate light and dark areas translate to an electrical waveform. This is amplified by IC1 and counted by IC2. A Schmitt trigger circuit can be added, if desired.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/OPTICAL_FRINGE_COUNTER.html

Print this Page | Comments | Reading(3)