| 声强测量中相位失配误差及校正方法 |
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| 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].西南林学院学报,1999,19(2):131-134. |
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| 作者姓名： | 董为民 季庸惠 |
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| 作者单位： | 昆明理工大学机械系,昆明,650093 |
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| 基金项目： | 云南省“八五”攻关项目 |
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| 摘 要： | 在声强测量技术中，相位的配是引起测量误差的主要因素，通过计算和分析，找出引起相位失效的原因，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。
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| 关 键 词： | 相位差 传递函数 测量通道 声强测量 校正方法 |
Analysis Errors and Updating Methods of Phase Difference in Sound Intensity Measurement System |
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| Dong Weimin,Ji Yonghui.Analysis Errors and Updating Methods of Phase Difference in Sound Intensity Measurement System[J].Journal of Southwest Forestry College,1999,19(2):131-134. |
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| Authors: | Dong Weimin Ji Yonghui |
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| 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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| Keywords: | Sound intensity Phase difference Passing function Measuring path |
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