现场修正声强测量系统相位失配误差方法研究  

STUDIES ON THE CALIBRATION OF PHASEMISMATCH ERROR OF SOUND INTENSITY MEASUREMENT SYSTEM IN SITU

作　　者：甘长胜[1] 陈心昭[1] 许滨 

机构地区：[1]合肥工业大学动态测试中心

出　　处：《合肥工业大学学报（自然科学版）》1998年第3期1-7,共7页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金

摘　　要：相位失配误差是声强测量系统的主要误差源，仅靠提高仪器的精度很难消除这一误差。文章提出了一种简单易行的修正声强测量系统相位失配误差方法。理论分析和实验验证表明该方法操作简单，修正准确可靠。The phase mismatch error is the main error source of sound intensity measurement system. It is difficult to eliminate this error only by upgrading the accuracy of instrument. In this paper, A simple method to correct the phase mismatch errors of Sound Intensity Measurement System is developed. The accuracy and efficiency of the method have been proved by the results of theoretical analysis and experiment test.

关 键 词：声强 相位失配误差 修正 测量 

分 类 号：TB52[理学—物理]