基于ARM11的多声道超声波明渠流量监测系统设计  

The design of multi-channel ultrasonic monitoring system for open channel flow based on ARM11

作　　者：张庭亮[1] 甄倩倩 ZHANG Ting-liang;ZHEN Qian-qian(School of Electronic Information and Electrical Engineering,Anyang Institute of Technology,Anyang 455000,China;School of Software Engineering,Anyang Normal University,Anyang 455000,China)

机构地区：[1]安阳工学院电子信息与电气工程学院,河南安阳455000 [2]安阳师范学院软件学院,河南安阳455000

出　　处：《山东理工大学学报（自然科学版）》2018年第3期43-47,共5页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：为了解决传统明渠流量监测系统中时差法测量收发两端数据联动困难、无法测量较宽明渠流量的问题,提出了一种基于多声道时差法的明渠流量监测系统的设计方案.为了提高波形信号提取及接收的准确度,自行设计了三级可控增益放大滤波电路.该流量计不仅抗干扰能力强、测量精度高、稳定性好,且可定制性使得系统更灵活,更易于维护.In the traditional method of time difference measurement in open channel flow monitoring system,sending and receiving data on both ends of the linkage is difficult.In order to solve the problem of wide open channel flow,the paper proposed a design scheme of channel flow monitoring system based on the multi-channel time difference method.In order to improve the accuracy of the extraction of the waveform signal and the received signal,a three-stage controllable gain amplification filter circuit is designed.The flowmeter not only has the advantages of strong anti-interference ability,high measurement accuracy and good stability,but also can make the system more flexible and easier to maintain.

关 键 词：超声波 明渠流量 无线传输 测量与控制 

分 类 号：TP271.5[自动化与计算机技术—检测技术与自动化装置]