Water content ratio measuring device, water content ratio estimation formula setting program, and water content ratio measuring method

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of estimating a water content ratio of a ground with higher accuracy by using spectral data obtained by a spectroscope. A water content ratio measuring device 100 is a device that measures the water content ratio of the ground while moving, and has a moving body 101 moving on the ground, a spectroscope 102 attached to the moving body 101, and a water content ratio estimating means 103. It is equipped with. Of these, the water content ratio estimation means 103 is a means for estimating the water content ratio of the ground based on the reflection intensity of the ground for each wavelength and the preset water content ratio estimation formula. The water content estimation formula is obtained by performing multiple regression analysis using the reflection intensities and water content ratios of a plurality of types of sample soils having different water content ratios. [Selection diagram] Fig. 1