基于LabVIEW实现的隔离放大器的自动测试  

An Auto-measurement for Isolation Amplifier Based on LabVIEW

作　　者：张聪[1] 肖艺[1] 陈馨[1] 

机构地区：[1]中国船舶重工集团公司第七一二研究所,武汉430064

出　　处：《船电技术》2012年第B08期118-120,共3页Marine Electric & Electronic Engineering

摘　　要：隔离放大器是一种输入电路和输出电路之间电气隔离的器件,一般采用变压器或光耦合传递信号,非线性误差是其一项重要的技术指标。本文介绍了一种基于LabVIEW实现的隔离放大器的自动测试技术,系统以标准信号源、数字多用表为标准装置,通过GPIB和TCPIP通信来实现计算机对隔离放大器的自动测试,完成非线性误差的计算,并自动生成测试报告。文中介绍了系统的测量原理、组成、非线性误差的算法以及软件编制。系统在实际的工作中取得了良好效果,显著提高了工作效率,为实验室检测工作的自动化作了有益尝试。Isolation amplifier has the function of electric isolation between input circuit and output circuit. It usually uses transformer or light coupling to transfer signal. Nonlinear error is an important performance of technology. In the paper, an auto-measurement system based on LabVIEW for isolation amplifier is introduced. In this system signal source and digit multimeter are used as the standard, and they are connected with a computer by GPIB or TCPIP cables. It completes the numeration of nonlinear error and builds the report automatically. Then some details such as the principle, composing, arithmetic and software are introduced. Now this system has been used effectively in the lab for testing job.

关 键 词：LABVIEW 隔离放大器 非线性误差 自动测试 

分 类 号：TM93[电气工程—电力电子与电力传动]