Nondestructive evaluation of soil hardness using elevated focused-beam radar

Matthew B. Higgins; Chi-Chih Chen

doi:10.1117/12.462263

12 April 2002 Nondestructive evaluation of soil hardness using elevated focused-beam radar

Matthew B. Higgins, Chi-Chih Chen

Proceedings Volume 4758, Ninth International Conference on Ground Penetrating Radar; (2002) https://doi.org/10.1117/12.462263
Event: Ninth International Conference on Ground Penetrating Radar (GPR2002), 2002, Santa Barbara, CA, United States

Abstract

This paper presents a non-destructive procedure to determine the surface hardness of the soil using an elevated radar system equipped with a focused-beam antenna. The complete system consists ofthe focused beam antenna, a network analyzer, a computer, and control software that process the data. The surface dielectric constant calculated from the radar data based on reflection measurement was compared with the surface hardness measured directly from a homemade hardness meter. A sand pit was used as test bed that was frozen by liquid nitrogen. It was found that there is a simple and direct relationship between the surface hardness and the measured dielectric constant in our case.

Citation Download Citation

Matthew B. Higgins and Chi-Chih Chen "Nondestructive evaluation of soil hardness using elevated focused-beam radar", Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); https://doi.org/10.1117/12.462263

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