摘要：
In materials science,acoustics,bionics and other disciplines,the vibration deformation of the object is often studied.Vibration phenomena can also be demonstrated in teaching.The most common method now is to use a highspeed camera to record,and then play with normal frame frequency,so-called slow motion.However,high speed camera is expensive and the result cannot be observed in real time.This paper presents a method of using frequency difference and phase difference stroboscopic method to realize the deformation of vibrating object.This method based on an MCU,it can trace the frequency of the vibrate object automatically,then generate a signal has a small difference with the vibrate frequency,and control the flash light by using this signal.It can realize real-time vibration object deformation observation,and the method is simple,low-cost,easy to promote,it can be used in the university,middle school,primary school at different levels of teaching demonstrations,and scientific research.%在材料学、声学、仿生学等学科中,经常会研究物体振动形变,在教学中也会演示振动现象.目前最通常的方法是使用高速摄影机进行拍摄,然后再用普通帧频播放.然而高速摄影机一方面价格昂贵,另一方面无法做到实时观察.提出了一种使用频率差和相位差频闪方法来实现振动物体形变的方法,可以实现实时进行振动物体形变观察,并且该方法实现简单,成本低廉,易于推广,既可用于教学演示,又可以用于科学研究.
