基于LabVIEW的三传声器声速测量方法研究  

Research on Sound Velocity Measurement Method with Three Microphones Based on LabVIEW

作　　者：李然[1] 冯涛[1] 王晶[1] 武瑶[1] 苏彬[1] 李知微[1] 

机构地区：[1]北京工商大学材料与机械工程学院,北京100048

出　　处：《测控技术》2014年第11期25-28,共4页Measurement & Control Technology

基　　金：国家自然科学基金资助项目(51175033);北京市属高等学校人才强教计划资助项目(PHR201107110)

摘　　要：提出了一种新的声速测量方法,通过测量管道壁面上3个固定位置的声压求解出声速。以LabVIEW软件为测量分析平台,建立声速测量系统,测得当前介质在不同频率处的声速。与理论的声速计算值比较,测量结果验证了测量方法的正确性。A new method of solving the sound velocity by measuring the sound pressure at three positions in a tube is proposed.LabVIEW software is used as a platform to build the sound velocity measurement system,sound velocity at different frequencies in current medium are measured.By comparing the experiment results with the theoretical sound velocity calculated values,the correctness of the measurement metha is validated by the experiment results.

关 键 词：声速测量 管道 三传声器 LABVIEW 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]