【摘要】 介绍基于LabVIEW的虚拟噪声测试分析仪。该仪器硬件采用传声器、放大器及数据采集卡,通过软件编程实现数字计权及频谱分析,具有噪声信号的读取、记录、实时分析,以及A计权声级的测量等功能。该仪器性能稳定,精度高,集多种传统仪器功能于一体,大大简化传统的噪声测量仪器,提高了效率,降低测试成本。更多还原

【Abstract】 A virtual instrument for noise measurement and analyse based on LabVIEW has been introduced.This instrument,which realized digital weight and frequency analyse by software,used microphone,amplifier,data acquisitive card;it had the function of data record,data taking,real-time analyzing and A-weight sound level measuring.This instrument,which has the characteristic of stability,high precision and integration of many kind of traditional instuments,simplifies the traditional noise measuring instruments and improves the efficiency of work,decreases the cost.更多还原