中文摘要：

声发射技术作为主动在线无损检测的一种方式,在木材加工行业应用越来越广泛。特别是木材在干燥过程中,由于应力应变引起的木材干燥缺陷,传统方法难以在线检测,声发射技术在木材干燥中受到日益广泛的关注。介绍了声发射原理及其信号处理方法,详细总结了声发射技术在木材干燥领域中的应用现状,结合木材干燥工艺的发展,对声发射技术在木材干燥领域的应用前景予以展望。

英文摘要：

As a way of non-destructive testing, acoustic emission （AE） technique has been widely used in wood processing industry, especially in the wood drying process, in which it is difficult for the traditional method to detect the defects caused by stress-strain. Therefore, AE technique is becoming popular in wood drying. The authors introduced the theory of acoustic emission and AE signal processing method, then reviewed the progress of AE technique in wood drying, finally, combining the development of wood drying process, put forward the application prospects of AE technique in wood drying.