A Continuous Wave Technique for the Automatic Measurement of Ultrasonic Velocity Changes
R. G. Leisure, R. W. Moss · Review of Scientific Instruments · 1969
A technique is described for the automatic measurement of ultrasonic velocity changes in continuous wave experiments. An oscillator is locked to a mechanical resonance of the sample. Velocity changes appear as frequency changes of the oscillator and are easily recorded. Some typical results are given.