摘要
介绍了基于高精度时间测量芯片TDC-GP2的超声波式热量表的具体设计，它是将温度测量与超声流量测量相结合的户用超声式热量表。超声波测量技术提供了一种无阻碍式的测量方法，是一种低压降和低功耗以及高精度的流量测量方法。讨论了热量计量、流量测量、温度测量原理和热量表的设计方法，与传统的热量表相比，该热量表克服了易损坏、精度低等缺陷，并且利用了微控制器的休眠模式和超声波处理电路间隔供电等方法，大幅降低了仪表系统的功耗。
An ultrasonic heat meter system which is based on the TDC-GP2 is given a particular introduction. It is a kind of domestic uhrasonic flow meter that combines the flow measurement and the temperature measurement together. The measurement principles for heat, flow rate and temperature are described. Moreover, the method of heat meter design is introduced in detail. Ultrasonic flow measurement technology provides a non-intrusive method to measure flow rate, and also has some outstanding advantages, such as low pressure drop, low energy consumption and high measurement precision. Comparing to the classical mechanical heat meters, it overcomes defects in t precision. In addition,it is hard on damage. More importantly, the stop mode of microcontroller is used to lower the power consumption, and the ultrasonic processing circuit is powered only when measuring.
出处
《计量学报》
CSCD
北大核心
2013年第5期469-473,共5页
Acta Metrologica Sinica
作者简介
李微（1986-），女，宁夏银川人，宁夏大学硕士生，研究方向为机电系统智能控制。lee_wmai@163．com
