传递函数法修正声强测量系统相位不匹配误差的研究  

Correcting the Phase Mismatch Errors of the Acoustic Intensity Measuring System by Transfer Function Method

作　　者：陈心昭[1] 王再平[1] 刘正士[1] 陈晓东[1] 

机构地区：[1]合肥工业大学

出　　处：《仪器仪表学报》1994年第4期405-409,共5页Chinese Journal of Scientific Instrument

基　　金：国家教委高等学校博士学科点专项科研基金

摘　　要：本文利用ＵＡ０９１４声强耦合腔产生的同一声场条件，测量声强测量系统两通道之间的传递函数，进而对两通道间的相位不匹配误差进行修正。比较Ｂ＆Ｋ３５１９声强探头和由两只国产ＣＭ２５传声器构成的声强探头的测量结果，说明该方法准确、有效。Abstract The phase mismatch errors are corrected by measuring the transfer func-tion between two channels at the same acoustic field provided with B&KUA0914 inside in-tensity coupler. The accuracy and efficiency of the measurement method has been proved bythe measuring results for two kinds of sound intensity probe B&K3519 and CM25.

关 键 词：传递函数法 声强测量系统 声强探头 相位误差 

分 类 号：TB52[理学—物理]