| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2016: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Outline of Final Research Achievements |
The purpose of this study is to estimate the water content distribution inside materials or structures by nondestructive measurement using ultrasonic and electromagnetic waves. In the ultrasonic nondestructive measurement, it was shown that the presence of stagnant water in layered structures and the thickness of the water layer can be estimated by using the dispersion characteristics of ultrasonic guided waves in layered structures. In the field of electromagnetic wave measurement, we developed an algorithm for estimating the water content in soil using the Kalman filter theory based on the reflection coefficient of electromagnetic waves.
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