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Microwave NDT of Particleboards

机译:刨花板的微波无损检测

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摘要

After introducing some possibilities and related problems of microwave moisture measurements, a nondestructive testing (NDT) method of particleboards is shown, which is based on a microwave free-space /double transmission/reflection type two-parameter complex vector measurement. Using this basic idea, a 5.8 GHz monitoring system was developed (see Figure 1), which is used for moisture content measurement and quality forecast of particleboards continuously, before mechanical testing would be accomplished. Recalling some basic equations, the calculation of Kasa's circles, dry wood basic weight, complex permittivity values, absolute moisture content and mechanical properties of composite boards, also are shown.
机译:在介绍了微波水分测量的一些可能性和相关问题之后,展示了一种刨花板的无损检测(NDT)方法,该方法基于微波自由空间/双透射/反射型两参数复矢量测量。利用这一基本思想,开发了一个5.8 GHz监视系统(见图1),该系统可用于连续进行水分含量测量和刨花板质量预测,然后再进行机械测试。回顾一些基本方程,还显示了Kasa圆的计算,干木的基本重量,复介电常数,绝对含水量和复合板的机械性能。

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