Applications of wavelet transformation in the nondestructive test of medium density fiberboard

作     者：WANG Fenghu ZHU Xiaodong SUN Jianping 

作者机构：Key Laboratory of Bio-Based Material Science and Technology of Ministry of EducationNortheast Forestry UniversityHarbin 150040China 

出 版 物：《中国高等学校学术文摘·林学》 (FRONTIERS OF FORESTRY IN CHINA)

年 卷 期：2007年第2卷第2期

页      面：227-230页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：This research was financially supported by the National Natural Science Foundation of China (30571A57) 

主　　题：nondestructive evaluation (NDE) wavelet transformation medium density fiberboard modulus of elasticity 

摘      要：Taking medium density fiberboards (MDF) as samples, the feasibility of the applications of wavelet analysis in a nondestructive test is discussed in this paper. The main results are as follows: the modulus of elasticity of longitudinal resonance, measured by wavelet analysis, can replace the conventional static modulus of elasticity. Their correlation coefficient is significant (p 0.01). The defect of samples can be judged by wavelet analysis, which is superior because it is a nondestructive test.