摘要
利用dsPICIC充足的软件和硬件资源,以及对数字信号处理速度较高的特点,设计了一种基于超声波频差法的流量测量电路。电路主要分为两个部分,一是流量测量电路;二是与计算机连接的通信电路。该电路采用较低的系统频率,使系统功耗较低。
Based on the sufficient software and hardware resources of dsPICIC and the high speed of digital signal processing, a flow measurement circuit based on ultrasonic frequency difference method is designed. The circuit is mainly divided into two parts, one is the flow measurement circuit, the other is the communication circuit connected with the computer. The circuit uses low system frequency,which makes the power consumption of the system low.
引文
[1]http://www.alldatasheet.com/datasheet-pdf/pdf/789026/AMSCO/dsPICIC.
[2]时文娟.超声波流量信号采集与处理技术研究[D].西安:西安石油大学,2014.