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A Six Channel Physiological Telemetry System

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2 Author(s)
Robrock, R.B. ; Case Institute of Technology, Cleveland, Ohio. ; Ko, W.H.

A six channel FM/FM physiological telemetry system was designed to measure two surface temperatures, an internal temperature, the respiration rate, and position and muscle spasm of a paralyzed patient. The system has since been adapted to permit the measurement of pulse rate. Tunnel-diode subcarrier oscillators operating from a constant-current source provided excellent temperature and long-term stability while permitting a complete transmission package with size 0.6×2.5×2.5 inches and weight 15 gm. A compatible transistorized receiving system was also constructed.

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Biomedical Engineering, IEEE Transactions on  (Volume:BME-14 ,  Issue: 1 )