An experimental investigation of the effects of position and motion on the frequency stability of certain crystal oscillators
Austin, Donald R.
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Crystal oscillators are now available with frequency stabilities 10 11 of a few parts in 10 or 10 . One application of such stability is in navigation systems, where geographic position may be determined by phase -comparing a received frequency-stable signal with a local frequency-stable signal. Errors may be introduced, however, by the effects of static position and of motion on the frequency stability of the oscillators employed. A testing program including static position, swinging motion, vibration, and shock tests was devised to determine the extent of such effects. The program is described and the results are presented in both tabular and graphic form.
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