基于LabVIEW的电流信号采集系统的设计和实现  

Design and Implementation of Current Signal Acquisition System Based on LabVIEW

作　　者：熊嘉靖 郑林(指导)[1] XIONG Jia-jing;ZHENG Lin(School of Information Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《光学与光电技术》2022年第3期55-61,共7页Optics & Optoelectronic Technology

摘　　要：在机电设备、精密器件等研发工作和电路校准、传感器应用等日常实验中,数字多用表常被用于微弱信号的测量,但数字多用表只能实时显示采集到的信号,不能存储信号,在实验和应用中无法将检测到的波形、数据和实验状态实时对应,只能通过人工肉眼估计读取,给实验和应用带来了一定的困扰。为了解决该问题,开发了一个基于LabVIEW的电流信号采集系统,该系统可以将采集到的波形实时显示在面板上,同时将检测到的准确电流数据和读取时间存储到PC机。实验结果表明,该系统可以更好地显示电流信号,同时可以进行信号的存储,避免了肉眼读取数字多用表的误差,增强了读取数据的准确性。In the research and development of EMG equipment and precision devices,as well as daily experiments such as circuit calibration and sensor application,digital multi-meter is often used to measure weak signals.However,digital multimeters can only display the acquired signals in real time and cannot store them,which makes reading inconvenient and brings trouble for experiments and work.In order to solve this problem,a current signal acquisition system based on LabVIEW is developed.The system can display the collected waveform on the panel in real time,and store the detected accurate current data and reading time to PC.The experimental results show that the system can better display the current signal and store the signal,avoid the error of reading the digital multi-meter with the naked eye,and enhance the accuracy of reading the data.

关 键 词：采集系统 电流采集 数字多用表 微弱信号 仪器控制 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]