Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.

介绍了超声波时差法风速测量的基本原理，以及基于ARM微控制器的风速测量系统的实现方法。

youdao

By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.

通过研究大量的资料，提出了以DSP为核心的时差法超声波流量计测控模块。

youdao

This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.

本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。

youdao