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基于LabVIEW实现的隔离放大器的自动测试
引用本文:张聪,肖艺,陈馨.基于LabVIEW实现的隔离放大器的自动测试[J].船电技术,2012(Z1):118-120.
作者姓名:张聪  肖艺  陈馨
作者单位:中国船舶重工集团公司第七一二研究所
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。

关 键 词:LabVIEW  隔离放大器  非线性误差  自动测试

An Auto-measurement for Isolation Amplifier Based on LabVIEW
Zhang Cong,Xiao Yi,Chen Xin.An Auto-measurement for Isolation Amplifier Based on LabVIEW[J].Marine Electric & Electronic Technology,2012(Z1):118-120.
Authors:Zhang Cong  Xiao Yi  Chen Xin
Institution:(Wuhan Institute of Marine Electric Propulsion,CSIC,Wuhan 430064,China)
Abstract: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.
Keywords:LabVIEW  isolation amplifier  nonlinear error  auto-measurement
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