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PEO方法(pulse·eeho·overlaPmeehod)是测量超声波在介质中的传播时间和速度的重要方法之一由于它具有用途广泛、测量精度高的优点,因而受到采用.但由于它属于几台仪器组成的实验室装置,以致操作较为不便,精度也难保证.为开展物理声学研究工作,并为开设专业实验课提供条件,我校无线电电子学系声学教研室及无线电厂
The PEO method (pulse eeho overlaplame) is one of the most important methods for measuring the propagation time and velocity of ultrasound in a medium because it has the advantage of being widely used and of high precision. However, since it belongs to several instruments Laboratory equipment, so that the operation is more inconvenient, accuracy is difficult to guarantee.In order to carry out physical acoustics research, and to provide the conditions for the establishment of professional experimental class, our school Department of Radio Electronics Department of Acoustics and Radio Factory