| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
In the construction and maintenance of infrastructure, it has been required to more accurately measure around the radar. We developed antennas mounted on the bucket of the back-how and on the core drill for concrete in this research. Through the experimental approach, we show that the developed antenna is useful for detection of the forward of the antenna. This technique is expected to play a roll of an automotive radar in concrete or underground. Moreover, we developed a vibro-radar method in order to evaluate the corrosion of re-bar in the concrete. In this technique, the re-bar is forced to vibrate by an excitation coil on the surface. Then, the vibration displacement of the re-bar is measured by a Doppler radar method. Experimental results show that the vibration displacement of the corroded re-bar is 5 times larger than the healthy re-bar.
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