Accession Number : ADP001567

Title :   Unwanted Responses in Quartz Low Frequency X-Cut Bars,

Corporate Author : GENERAL ELECTRIC CO LTD WEMBLEY (ENGLAND)

Personal Author(s) : Werner,J. F. ; Edwards,H. W. ; Smith,M.

Report Date : 1982

Pagination or Media Count : 8

Abstract : The unwanted modes in quartz 5 degrees X-cut low frequency resonator bars have been recorded and charted over the range of dimensional ratios l/w 5 to 10 and l/t 50 to 170. They have been found to occur at even multiples of the frequencies of coupled l/t flexural and length torsional modes and a unified spectrum has been obtained by plotting flw/t against w/l. A simplified theory of these coupled modes is developed and is found to give good agreement with the observed spectrum. (Author)

Descriptors :   *Frequency, *Control, *Symposia, *Quartz resonators, *Low frequency, Ratios, Torsion, Crystals, Frequency response, Thickness, Electrodes, Gold

Distribution Statement : APPROVED FOR PUBLIC RELEASE