本文简要论述了超声风速温度仪的工作原理及主体结构，提出了新的时间倒数法测量原理，并与时间差测量法进行了比较。此外，还介绍了100m测风塔上由7台超声风速温度仪组成的大型测风测温系统。 This article briefly discusses the working principle and the main structure of the ultrasonic anemometer, puts forward a new measuring principle of the time count method and compares it with the time difference measurement method. In addition, a large wind measurement system consisting of 7 ultrasonic anemometers on a 100m wind tower is also introduced.