Nondestructive Testing of Dynamic ElasticModulus of Wood-BasedPanel by the Method of Stress Wave

摘要：

Testing method by velocity of stress wave is-widely used in the nondestructive testing system of strength of wood-based panel. Considering higher and higher requirement of accuracy on the testing system,the research developed testing system of stress wave velocity based on SCM in this paper. SCM is used as processing corn. The research calculated dynamic elastic modulus of wood-based panel,which was based on real-time tested data,such as velocity of stress wave and density of wood-based panel. And bending strength of wood-based panel is determinate on correlation of dynamic elastic modulus and bending strength. Then the research realizes strength rating on the wood-based panel. The research discussed on the testing principle,gave out concrete circuit of hardware and design of programming,and also carried out experimental verification of testing system in this paper.

关键词： single chip microcomputer (SCM) stress wave wood-based panel bending strength

作者: Jiang Xiao Chao Sa Ying Han

作者单位: Department of Automation,Beijing Forestry University Qinghuadonglu No.35,100083 Beijing,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 1434-1438

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）