董为民, 季庸惠. 声强测量中相位失配误差及校正方法[J]. 西南林业大学学报, 1999, 19(2): 131-134. DOI: 10.11929/j.issn.2095-1914.1999.02.013
引用本文: 董为民, 季庸惠. 声强测量中相位失配误差及校正方法[J]. 西南林业大学学报, 1999, 19(2): 131-134. DOI: 10.11929/j.issn.2095-1914.1999.02.013
shu
Dong Weimin, Ji Yonghui. Analysis Errors and Updating Methods of PhaseDifference in Sound Intensity Measurement System[J]. Journal of Southwest Forestry University, 1999, 19(2): 131-134. DOI: 10.11929/j.issn.2095-1914.1999.02.013
Citation: Dong Weimin, Ji Yonghui. Analysis Errors and Updating Methods of PhaseDifference in Sound Intensity Measurement System[J]. Journal of Southwest Forestry University, 1999, 19(2): 131-134. DOI: 10.11929/j.issn.2095-1914.1999.02.013
shu

声强测量中相位失配误差及校正方法

Analysis Errors and Updating Methods of PhaseDifference in Sound Intensity Measurement System

    摘要
  • 摘要: 在声强测量技术中,相位失配是引起测量误差的主要因素,通过计算和分析,找出引起相位失配的原因.并提出了在FFT测量中,对系统相位失配误差进行校正的方法

     

    Abstract: Phase difference is the main reason which can lead to measuring errors in Sound Intensity Measurement.In this thesis,the main reason which lead to phase difference can be found by calculation and analysis,and update methods with errors of phase difference of system can be posed in the measurement way of FFT.

     

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