【摘要】 针对仓储粮食实际储量的检测问题,提出了一种无损探测方法。根据粮食介电常数与密度的关系,采用波速层析和衰减层析算法对粮食的介电常数进行反演,从而实现仓内粮食体密度的估算;同时,采用速度和衰减联合层析成像技术,对粮仓实际储粮高度进行成像,并对可能存在的异物大小、形状进行成像,从而得到实际储粮体积;最后由粮食密度和实际储粮体积,实现对粮仓实际储量的估算。仿真结果证实了应用层析成像技术进行粮仓储量探测的有效性。更多还原

【Abstract】 Radar tomography technology as a non-destructive testing method is proposed to detect reserves of barn. The permittivity of grain in the barn can be obtained by velocity and attenuation tomography inversion method. Then the density of the grain can be calculated based on the relationship between permittivity and grain density. At the same time,the actual height of grain and the shape of unconventionality objects in the barn can be imaged by velocity and attenuation tomography image method. Actual bulk of the grain can be calculated with the information of actual height and the size of unconventional objects. Based on the density and bulk information of barn,the practical reserves can be achieved. Simulation results verify the effectiveness of the proposed method.更多还原