Title :
A Method of Measuring Radio Frequency by Means of a Harmonic Generator
Author_Institution :
Radio Laboratory, Bureau of Standards
fDate :
4/1/1925 12:00:00 AM
Abstract :
An improved method has been developed for standardizing a wavemeter by means of the harmonics produced by a simple type of harmonic generator the fundamental of which is an audio-frequency alternating current. The arrangement is adapted to primary frequency standardization since the fundamental frequency can be checked during the measurement against the frequency of a standard tuning fork by means of an instrument using visual indication. A large number of harmonics (up to 100 and higher) can be utilized since very sharp settings are made possible by the use of a visual resonance indicator.
Keywords :
AC generators; Electron tubes; Frequency measurement; Instruments; Laboratories; Measurement standards; Radio frequency; Resonance; Standardization; Vibrations;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1925.220939
