【摘要】 本文提出一种全新的方法,成功地解释了白光照射驻波超声场形成的光栅效应。应用所获得的这种大大简化了而又十分有效的超声光栅测量了几种媒质的超声速度和水中声速随温度的变化关系,以及酒精中、白糖溶液中声速随浓度的变化关系。其测量简便而精确度高。这种超声光栅应用于测量具有广阔的前景。更多还原

【Abstract】 A completely new method has been given in the present paper It has explained successfully grating effect formed by ultrasonic stationary waves field directly irradiated with white light.we have applied this simplified and quite effective grating to measuring the velocities Of ultrasonic waves in several media, the relation between the ultrasonic velocities and temperature in water, and relation between the velocities of the ultrasonic waves and the concentration of alcohol and solution of sugar.The determination is simple, convenient and exact.The application of ultrasonic grating has vast vistas to measurement.更多还原