基于虚拟仪器的噪声信号采集系统开发

摘要

Based on NI's Lab VIEW technology platform , using Aihua test microphone and preamplifier , NI USB-4431 data acquisition card and other components of the hardware devices , it completed the development of the noise signal acquisition system . The system can complete the collection and storage of the noise signal , the noise signal filtering, time domain analysis, spectral analysis and other functions.%基于 NI公司的 Lab VIEW 技术平台，利用爱华测试传声器与前置放大器，NI USB-4431数据采集卡等组成的硬件设备，开发完成了噪声信号采集系统。该系统能完成噪声信号的采集与存储、噪声信号滤波、时域分析、频谱分析等功能。