| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rail unevenness measurement device which measures unevenness of a rail continuously in a rail longitudinal direction. <P>SOLUTION: The rail unevenness measurement device includes a measurement vehicle (10) capable of traveling a measurement rail (R1), a distance sensor (31) which measures a travel distance of the measurement vehicle (10), and a displacement sensor group (20) comprising first, second, and third displacement sensors (21, 22, and 23) which are fitted to the measurement vehicle (10) and arranged in series in order at irregular intervals in the longitudinal direction of the measurement rail, at least one of the first, second, and third displacement sensors (21, 22, and 23) being changeable in position. <P>COPYRIGHT: (C)2013,JPO&INPIT |
