Tottori University

2 ARTICLES PUBLISHED IN JoVE

Environment

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Hirotaka Saito¹, Seiichiro Kuroda², Toshiki Iwasaki¹, Haruyuki Fujimaki³, Nobuhito Nagai⁴, Jacopo Sala⁵

¹Graduate School of Agriculture, Tokyo University of Agriculture and Technology, ²National Institute for Rural Engineering, National Agriculture and Food Research Organization, ³Arid Land Research Center, Tottori University, ⁴GeoFive Co. Ltd, ⁵3D-Radar

Here we present a Ground Penetrating Radar (GPR) system based on a ground-coupled, densely populated antenna array for monitoring the dynamic process of subsurface water infiltration. A time-lapse radar image of the infiltration process allowed estimating the depth of the wetting front during the course of the infiltration process.

Research

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Naoto Kakuta¹, Keisuke Nishijima¹, Van Cuong Han¹, Yuki Arakawa¹, Katsuya Kondo², Yukio Yamada³

¹Department of Mechanical Engineering, Tokyo Metropolitan University, ²Department of Electrical and Electronic Engineering, Tottori University, ³Brain Science Inspired Life Support Research Center, The University of Electro-Communications

A technique utilizing wavelengths of 1150 and 1412 nm to measure the temperature of water surrounding an induction-heated small magnetic sphere is presented.