现代电子技术2012，Vol.35Issue(12)：134-136,3.
TDC-GP21在时差法超声波流量计中的应用
Application of TDC-GP21 in ultrasonic flowmeter based on time difference method
邵慧1
作者信息
- 1. 上海理工大学 光电信息与计算机工程学院,上海 200093
- 折叠
摘要
Abstract
In order to make the accuracy of ultrasonic flowmeter reach ,the measurement principle of time-difference ultrasonic is studied, and the method to achieve high-precision measurements is analyzed. The system work process and hardware composition is introduced . The structure and principle of high-speed interval measuring chip TDC-GP21 as well as the hardware realization of ultrasonic measurement system is mainly elaborated. The high-precision measurement of ultrasonic downstream and upstream propagation time difference was achieved by using TDC-GP21 , ARM microprocessor, ultrasonic transceiver circuit and other hardware architecture. The experiment result and accuracy analysis confirms that the ultrasonic flowmeter developed in this way can meet the design requirements. It provides a reference for high-accuracy and low-power design of ultrasonic flowmeter.关键词
TDC-GP21/时间测量/时差法/超声波流量计Key words
TDC-GP21/ time measurement/method of time difference/ ultrasonic flowmeter分类
信息技术与安全科学引用本文复制引用
邵慧..TDC-GP21在时差法超声波流量计中的应用[J].现代电子技术,2012,35(12):134-136,3.
