Journal of Applied Physiology
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J Appl Physiol 20: 543-546, 1965;
8750-7587/65 $5.00
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A rate signal interpreter

Lloyd D. Partridge 1 and Richard F. Jones 1

1 Department of Physiology and Bioyphysics and Instrument Division, University of Tennessee Medical Units, Memphis, Tennessee

A simple, on-the-line device is described for converting an electrical pulse pattern into a continuous voltage output proportional to the instantaneous pulse rate. The special purpose circuit and an analog computer version are both given. Pulse rates varying by 30:1 are adequately measured. Multiple ranges are provided. A special feature is that a falling rate is followed as soon as the current interval exceeds the last completed interval. The circuit is stable and components are not critical.

impulse rate; rate measurement; instrumentation; interval measurement

Submitted on November 16, 1964






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