高精度多通道同步正弦信号源设计与实现  

Design and Realization of High Accuracy and Multi-channels Synchronous Sinusoid Signal Generator

作　　者：王燚[1] 谢启[1] 吕庭[1] 顾启民[1] 

机构地区：[1]常熟理工学院电气与自动化工程学院,江苏常熟215500

出　　处：《计算机测量与控制》2010年第11期2663-2665,共3页Computer Measurement &Control

基　　金：江苏省高校自然科学研究计划项目(09KJD470001);常熟理工学院青年教师科研启动项目(QZ0909)

摘　　要：智能型万能式断路器的核心控制部分采用具有精确选择性保护和多功能的智能控制器;根据产品企业标准以及其它相关要求,智能控制器在出厂前需进行合格检验;根据检验要求,检测系统需要提供能模拟实际电网电流、电压信号的高精度多通道同步正弦信号源;设计了一套由计算机、数据采集卡等硬件和基于LabVIEW虚拟仪器平台开发的软件构成的高精度多通道同步正弦信号源,并采用M系列数据采集卡同步技术,满足了智能控制器出厂检验要求;从系统总体方案设计和软件等方面对信号源的实现方法以及功能进行了详细介绍,所设计的高精度多通道同步正弦信号源已成功投入使用;实际应用表明,正弦信号源在精度、速度和同步等方面均具有良好的性能。The control core of Intelligent Universal Circuit Breakers is intelligent controller,which has the characteristics of multi-function selective protection and must pass the ex-factory test.The test system needs a high-accuracy and multi-channels synchronous sinusoid signal generator to simulate the real current and voltage signal.Consisting of computer,data acquisition board and software developed by LabVIEW virtual instrument technology,the design of high-accuracy and multi-channels synchronous sinusoid signal generator is introduced in this paper which can satisfy the demands of intelligent controller ex-factory test.The signal generator use M series data acquisition card synchronization techniques.The realization and function of the signal generator are also introduced in detail about the system structure and especially the software function.Practical application shows that the signal generator has fine performance in prediction,high-speed and synchronous sampling.

关 键 词：高精度 同步技术 信号源 虚拟仪器技术 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TM561[自动化与计算机技术—计算机科学与技术]