Title :
A Precision Tuning Fork Frequency Standard
Author_Institution :
5710 21st Avenue, Brooklyn, N.Y.; Formerly RCA-Victor Co., Camden, N.J.
Abstract :
The use of tuning forks as audio-frequency standards is treated. Two frequency standards employing alloy forks and one employing a steel fork were checked against each other by apparatus allowing a continuous and simultaneous checking of all three forks. Suitable circuits and requirements for high precision and constancy of output are outlined. One of the frequency standards and a method of obtaining a high power output is described.
Keywords :
Circuit optimization; Clocks; Frequency measurement; Helium; Iron alloys; Measurement standards; Stability; Steel; Temperature; Vibrations;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1932.227693
