| 基于Hilbert变换的相位测量法与数字相关测相法的比较 |
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| 引用本文： | 周继惠,曹青松,宋京伟.基于Hilbert变换的相位测量法与数字相关测相法的比较[J].无损检测,2006,28(7):341-343,354. |
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| 作者姓名： | 周继惠 曹青松 宋京伟 |
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| 作者单位： | 华东交通大学机电工程学院,江西南昌330013 |
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| 摘 要： | 介绍了希尔伯特（Hilbert）变换测量相位差和数字相关法测量相位差的原理，进行了比较研究和试验分析，讨论了各自使用效果、优缺点及其适用的场合。结果表明，在动态检测方面，利用Hilbert变换法更能对两路同频信号的相位差进行有效的检测，是今后的研究方向。
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| 关 键 词： | 相位差测量 Hilbert变换 数字相关法 裂纹检测 |
| 文章编号： | 1000-6656（2006）07-0341-03 |
| 收稿时间： | 2005-01-11 |
| 修稿时间： | 2005-01-11 |
A New Method of Phase Measuring based on Hilbert and its Comparison with Digital Correlation Method |
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| ZHOU Ji-hui, CAO Qing-song, SONG Jing-wei.A New Method of Phase Measuring based on Hilbert and its Comparison with Digital Correlation Method[J].Nondestructive Testing,2006,28(7):341-343,354. |
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| Authors: | ZHOU Ji-hui CAO Qing-song SONG Jing-wei |
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| Affiliation: | School of Mechanical and Electrical Engineer, East China Jiaotong University, Nanchang 330013, China |
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| Abstract: | The phase difference measuring principles of using Hilbert transform and digital correlation method are introduced, and the comparative research and experimental analysis are carried out based on their principles. Moreover, their respective application field and effectiveness, advantages and disadvantages are discussed. The results show utilizing Hilbert transform to measure the phase difference of two signals with the same frequency is more effective in dynamic testing, and is a research direction in the future. |
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| Keywords: | Phase difference measuring Hilbert transform Digital correlation method Crack test |
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