超声波在液体中的传播速度与温度的关系

Relation between the velocity of ultrasonic wave and liquid temperature

根据超声光栅的原理,在分光计上测出了超声波在不同温度下的纯净水中的传播速度.通过最小二乘法进行数据拟合,得到了传播速度与温度的近似公式.

Based on the theory of ultrasonic grating, the velocities of ultrasonic waves in pure water of varied temperatures are measured by spectrometer. The approximate formula of the velocity is derived from least square data fitting.