ILLUMINATION_TELEMETER

Published:2009/7/20 12:26:00 Author:Jessie | From:SeekIC

Prf rate of blocking oscillator, controlled by photocell output, can be transmitted over telephone lines to give accurate remote indication of day-light or other light intensity. D1, V2B, and meter provide local indication. Maximum illumination gives highest prf.-E. F. Hasler and G. Spurr, Ways to Measure Light Intensity at a Distance, Electronics, 32:29, p 48-49.



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