| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a practical technique capable of easily observing bed load.SOLUTION: A device 1 is installed on a natural river for observing bed load. The device 1 comprises a shell-shaped sensor 2 integrally mounted on a weight 3 installed between river bed gravel S. In the integrated shell-shaped sensor 2 and the weight 3, a measurement device 42 for measuring vibration generated on the shell-shaped sensor 2, and a data logger 43 are housed. The shell-shaped sensor 2 is formed in a dome shape simulating the river bed gravel S.</p> |
