摘要
我国的木材需求巨大,但是木材利用率有待提高。木材无损检测技术可以很好地提高木材利用率,增加经济效益。电阻测试法对于立木早期腐朽变色具有良好的检测效果,而且使用方便快捷。介绍电阻测试法的基本原理,对针式探测法、四点检测法和断层成像法3种电阻测试法的研究进展进行分析和总结,在此基础上对电阻测试法在立木腐朽检测中的应用可行性进行探讨。
The timber demand in China is huge, but it is necessary to improve the timber utilization. Wood non-destructive tes- ting can improve the timber utilization and increase the economic benefits. Electrical resistance testing method can detect decay in standing trees at an early stage conveniently and efficiently. The fundamental principle of electrical resistance testing method was intro- duced in this paper. The research progress of needle-detection method, four-point resistivity（RISE） method and Electrical Resistance Tomography（ERT） were analyzed and summarized. The potential application of electrical resistance testing method in the non-destruc- tive detection of decay in standing trees was forecasted.
出处
《森林工程》
2013年第6期47-51,共5页
Forest Engineering
基金
国家林业行业公益性科研专项重大项目资助(201104007)
关键词
电阻测试法
木材检测
无损检测
electrical resistance testing method
wood testing
non-destructive testing
