To evaluate the dynamic characteristic of vibrating wheel micromechanical gyroscope

an optic testing system based on high speed camera system combining with microscope and digital image correlation technique is setup. A sequence of real time images of tested object are recorded and saved by high speed camera (32000fps) equipped microscope

then the corresponding image correlation method for angular vibrating characteristic was applied to figure out movement displacement of vibrator

and the dynamic characteristic of vibrator such as nature frequency

damp coefficient and quality factor can be obtained. As experimental results shown

the precision of image correlation will approach 0.01 pixel

the measurement error was less than 0.01%. This testing system realizes a high precision dynamic characteristic measurement for vibrating wheel micromechanical gyroscope

and it also provides an available method to research dynamic characteristic of microstructure.