An electrical caliper for continuous measurement of relative displacement
Alexander J. Mallos · Journal of Applied Physiology · 1962
An electrical recording caliper for the continuous measurement of relative displacement has been developed. The details of design, operation, and performance are described. The frequency response was uniform (±5%) through 25 cycle/sec. An approximately 0.5% error related to the mechanical impedance of the device was estimated to occur. The system is linear and free of hysteresis. Base-line and gain stability are acceptable. Submitted on July 21, 1961