设计一个采用DSP技术和数字相关法测量两路正弦信号相位差的检测系统。
A measurement system for sine signal phase difference is designed by using DSP and digital correlation method.
涡流检测信号中的相位信息能反映检测系统的某些特性，讨论用数字相关法提取相位特征信息。
Digital correlation method was used to extract phase information as the phase information of eddy current testing signals could reflect the characteristics of detecting system.
涡流检测信号中的相位信息能反映检测系统的某些特性，讨论用数字相关法提取相位特征信息。
Digital correlation method was used to extract phase information as the phase information of eddy current testing signals could reflect the characteristics of detecting system.
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