Nondestructive testing method of wood moisture content based on a planar capacitance sensor model

来源 :Forestry Studies in China | 被引量 : 0次 | 上传用户:jacobyuanwei
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For our research,a new hybrid experimental-computational method is presented.We applied a least squares fitting method(LSFM) to reconstruct the wood moisture content(WMC) from the data measured with a planar capacitance sensor.A boundary element method(BEM) was used to compute the relationship between capacitance and the dielectric constant.A functional relationship between MC and the dielectric constant was identified by LSFM.The agreement of this final computation result with the experimental data indicates that this method can be used to estimate the WMC quickly and effectively with engineering analysis.Compared with popular statistical methods,a large number of experiments are avoided,some costs of testing are reduced and the efficiency of testing is enhanced. For our research, a new hybrid experimental-computational method is presented. We applied a least squares fitting method (LSFM) to reconstruct the wood moisture content (WMC) from the data measured with a planar capacitance sensor. A boundary element method (BEM) was used to compute the relationship between capacitance and the dielectric constant. A functional relationship between MC and the dielectric constant was identified by LSFM. The agreement of this final computation result with the experimental data that that method can be used to estimate the WMC quickly and effectively with engineering analysis. Compared with popular statistical methods, a large number of experiments are avoided, some costs of testing are reduced and the efficiency of testing is enhanced.
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