| 摘要 |
<p>Apparatus for measuring the lateral movement of the rails of curved tracks as locomotives or railroad cars pass thereover includes a support positioned adjacent each rail. A linear differential transformer carried by the support has its axially movable core connected to the adjacent rail by means of a non-magnetic rod. Movement of the core changes the output of the transformer and this output is connected to a recorder which provides a chart of the movement. A wheeled vehicle known to be in first class shape is first passed over the rail to provide a first chart which will be substantially identical for all vehicles of the same type which are in first class shape. When other similar vehicles whose condition is not known passes over the curved rail and its chart is obtained at the same location a comparison of the two charts will indicate whether or not the wheels, axles, or other truck components of the car are in first class condition or not.</p> |
