Since it is hard to further decrease the thickness of the quartzose diaphragm,a polymer(PSQ) diaphragm is used as a pressure diaphragm to increase the sensitivity of the sensor.

The finite element method is used to calculate the stress distribution for a rectangular ST quartz membrane with a central hole upon which a constant pressure acts.

Study of Size Effect of the Thermal Conduction for Silicon Dioxide Film;

According to the birefringence dispersion character of a quartz crystal,the theoretical analysis and numerical simulation about the polarization interference spectrum are given,and then a systematic way of measuring the phase retardation and thickness of the quartz wave plate,which is based on the principle of polarization interferometry,is put forward.

With the quartz crystal s broader application in the field of electron, Home quartz crystal industry develops rapidly.