MODES OF MOTION IN QUARTZ CRYSTALS 



59 



L 



V AT 

 3 BT 



I 



I 

 ( 

 / 



I • / 



( 



r 



1 







• • 



> + 5^ 



Fig. 6.6 — Motions of typical cuts of quartz. 



the range from 1 to 10 megacycles. The AT is most useful in the lower 

 range and the BT in the upper range since it has a higher frequency constant. 



