A new experimental method for measuring resonant frequencies of objects is proposed by use of rotating shearing stroboscopic speckleinterferometry.
提出一种测量物体固有频率的新方法———旋转剪切频闪散斑干涉法。
2
It has been explained that the relation between the speckleinterferometry and the speckleshearinginterferometry by using the theory of the movement of space speckle.
还利用散斑空间运动规律较好地解释了散斑干涉与散斑剪切干涉之间的关系。
3
Both theory and experiments show that stroboscopic shearingspeckleinterferometry is obviously superior to time-average method.