基于LabVIEW测试音频功率放大器  

Audio Frequency Amplifier Measurement based on LabVIEW

作　　者：李震[1] 洪添胜[2] 陈海生[1] 宋淑然[1] 郑宁[1] 吴伟斌[1] 

机构地区：[1]广州华南农业大学工程学院 [2]广州华南农业大学信息学院

出　　处：《微计算机信息》2006年第04Z期206-208,287,共4页Control & Automation

基　　金：广东省科技攻关项目(2003C20505)

摘　　要：本文介绍了将虚拟仪器技术引入到音频分析仪器的设计,采用LabVIEW编写程序。通过测试典型的音频放大器,检测虚拟式音频放大器测试的实用效果,测量音频信号的电压与频率、时域幅值分析、频域分析、失真分析和信噪比等。The method that how the virtual instrument technology could be inducted to the test of audio frequency analyzing instruments was introduced. The practical effect of the virtual audio frequency analyzing system was tested by measuring a typical audio frequency amplifier and lots of the characteristic parameters as the voltage level, frequency, time domain analyzing, frequency domain analyzing and the distortion of the audio signal could be measured.

关 键 词：LABVIEW 音频放大器 时域分析 信噪比 

分 类 号：TN911.6[电子电信—通信与信息系统]