中文摘要：

作为一种主动无损检测方式，声发射技术通过分析被测物体内部因能量变化所引发的弹性波的特征，判断物体内部损伤程度并确定损伤位置。声发射技术为木材加工过程应力监测提供了一种主动无损检测模式，但受木材自身各向异性等特点的限制，目前声发射技术在木材工业中的应用尚处于探索阶段。为此，文中重点介绍了目前声发射技术在木材切削加工、木材及木质结构、木材力学性能、木材干燥过程等木材加工过程的应用现状，并在此基础上根据木材声发射信号特点，提出一种基于LabView及高速采集设备的木材干燥过程声发射监测系统设计方案。

英文摘要：

As an active non-destructive testing method, acoustic emission is adopted to determine the extent of damage inside an object as well as the damage location by analyzing the characteristics of the elastic wave within an object caused by internal energy changes. Acoustic emission provides an active non-destructive testing mode for the monitoring of wood processing stress. However, limited by the anisotropic characteristics of wood itself, the application of acoustic emission technology in wood industry is still at the exploratory stage. Therefore, this article focused on the current application of acoustic emission technology in wood cutting, wood and wooden texture structure, mechanical properties of wood, wood drying process, etc. design plan for acoustic emission monitoring system over wood and high-speed capture devices according to the wood acoustic drying process was proposed On this basis, the based on LabView emission signal characteristics.