PILL_TRACING_INTEGRATOR

Published:2009/7/20 23:28:00 Author:Jessie | From:SeekIC

Voltage proportional to speed of travel of pill-sized radio transmitter in human body is integrated in quantizing circuit that delivers number of pulses proportional to track length. Transistor differential amplifier charges C, and Schmitt trigger controls discharge of C through R2．Frequency of trigger pulses is proportional to input voltage within 1% over range of 2 to 200 mv，-B. Jacobson and B Lindberg, Servo Tracks Pill in Human Body,Electronics,36:12,p58-60.



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