The shafting stability was judged by adopting Q factor method.

确定稳定性判别的分类和计算方法。

Q factor of an open resonator is determined by the diffraction loss, reflection loss and external loss introduced by coupling as a whole.

开式谐振腔的Q值由衍射损耗，反射损耗，耦合引入的外部损耗共同决定。

The calculated result shows that the device has its Q factor of detected mode and driven mode in almost same order of 140 at atmospheric pressure.

计算结果表明，这种器件在大气压条件下其驱动模态和检测模态的品质因子几乎同为14 0。

The numerical simulation shows that the first-order transverse modes have fairly high Q factor and high coupling efficiency to the output waveguide.

数值计算结果证明一阶横模具有很高的品质因子和很高的耦合输出效率。

The assumption is made that P-wave velocity, S-wave velocity, density and Q factor show lateral piecewise linear continuous variations in block media.

假定介质为块状，且块中纵，横波速度及密度、品质因数横向分段线性连续变化。