An Inverting Method of Moisture Constent for Huge Grain Pile based on Distribution of Dielectric Constant
Aimming at the detection of moisture content of grain pile, we proposed a scheme in which Ground Penetrating Radar is applied in this paper. The method proposed is that we used a permittivity-moisture model to calculate moisture content indirectly by measuring the distribution of dielectric constant in grain pile. The precise detection is discussed in this paper under the condition of extensiveness and the calculation algorithm of dielectric constant is provided by using layer inverting method based on reflection law and refraction law. In addition, we used well logging method to obtain precise detection results to infer the accurate calibration coefficient requierd in layer inverting method. By this way, a higher precision can be obtained by the mothed. At the same time, we proposed a model named permittivity-moisture from nonlinear model of dielectric constant of mixed media. The experiment results indicate that, compared to sampling method, the calculating results of moisture content from the method has less error by combining the layer inverting algorithm and permittivity-moisture model and can meet the requires of application well. Thus can provide a convenient and practical method to the detection of huge grain pile.
ground penetrating radar dielectric constant layer inverting algorithm moisture content
BAI Hao ZHANG Ji-xin
School of Computer Science and Technology Henan University of Technology Zhengzhou, 450001, China Sc School of Computer Science and Technology Henan University of Technology Zhengzhou, 450001, China
国际会议
太原
英文
110-115
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）