The temperature compensation principle of refractive ultrasonic Doppler liquid flow measurement is discussed,thereby a measurement model is derived and an instrument developed on the basis of analysing and calculating the Doppler velocity data.

• 本文叙述折射式超声多普勒测速方法的温度补偿原理,导出测速模型,并对多普勒速度信息进行分析计算,研制了仪器。