基于虚拟仪器技术的音频扫频信号测量仪  

Audio Sweep Signal Tester Based on Virtual Instrument Technology

作　　者：蒋治国[1] 李宁[2] 石楠[2] 

机构地区：[1]中国电子科技集团公司第三研究所质检中心校准实验室 [2]中国人民解放军91917部队四大队

出　　处：《电声技术》2014年第5期80-82,共3页Audio Engineering

摘　　要：针对目前音频扫频信号的测量的局限性,利用NI公司的PXI-5124数据采集卡,在LabVIEW2012开发环境下,开发了基于虚拟仪器技术的音频扫频信号测量仪,实现了音频扫频信号的直接测量。介绍了开发过程,并给出了基本程序,通过系统测试证实该仪器功能正常,测量结果准确,为音频扫频信号发生器的计量校准提供了新思路。For the measurement of the current limitations of the audio sweep signal, using NI PXI -5124 data acquisition card, In LabVIEW2012 development environment, an audio sweep signal tester is developed based on virtual instrument tech- nology, a direct measurement of the audio sweep signal is achieved. Development process is introduced and the basic proce- dure is given. It is confirm that the instrument is functioning properly ,the measurement results are accurated through the sys- tem test. A new idea for the measurement and calibration of audio sweep signal generator is provided.

关 键 词：音频 扫频信号 虚拟仪器 LABVIEW 

分 类 号：TN912.3[电子电信—通信与信息系统]