一种基于FPGA的水膜仪系统的设计与应用  

Design and Application of a Water Film Instrument System Based on FPGA

作　　者：马亦睿 杜浩 熊显名[1] 

机构地区：[1]桂林电子科技大学电子工程与自动化学院,广西桂林541004

出　　处：《工业控制计算机》2023年第7期28-29,32,共3页Industrial Control Computer

基　　金：国家自然科学基金(61965005);国家自然科学基金(62205076);广西自然科学基金(2019GXNSFDA185010);广西重点研发计划项目(AB22035047);上海市在线检测与控制技术重点实验室开放基金项目(ZX2021104)。

摘　　要：为实现对水膜的高精度测量,设计了一种基于FPGA的水膜厚度检测仪,该系统由FPGA控制模块、超声波发射模块、回波信号接收模块、温度反馈模块和算法结算水膜厚度模块等构成,采用渡越时间检测法测量水膜厚度,根据实时温度反馈提高测量精度,通过算法减小误差。实验结果表明,该系统盲区小,测量范围2.25 mm~500 mm,精度达到0.1 mm,并且具有较高的稳定性,可以用于实际工作。In order to achieve high-precision measurement of water film,this paper designs a water film thickness detector based on FPGA.The system consists of FPGA control module,ultrasonic transmitting module,echo signal receiving module,temperature feedback module and algorithm to calculate the water film thickness modules and other components,using the transit time detection method to measure the thickness of the water film,improve the measurement accuracy according to the real-time temperature feedback,and reduce the error through the algorithm.The experimental results show that the system has a small blind area,a measuring range of 2.25 mm~500 mm,an accuracy of 0.1 mm,and high stability,which can be used in practical work.

关 键 词：FPGA 水膜仪 超声波测距 温度反馈 

分 类 号：U492.8[交通运输工程—交通运输规划与管理] TN791[交通运输工程—道路与铁道工程] TP212[电子电信—电路与系统]