| 摘要 |
A method for measuring the transverse profile of the head of a rail of a railroad track according to which a luminous trace (1) is projected onto the surface of the head of a rail, in a direction perpendicular to the longitudinal axis of said rail, this trace (1) having a particular point (3). The trace obtained is observed from two directions forming an angle ( alpha ) between them, located on either side of a longitudinal plane of the rail (2) and forming an angle with the plan of projection of the trace. This observation creates two partial reproductions (1'; 1'') of this trace (1). Finally the two partial representations (1', 1'') are angularly displaced by an angle corresponding to the angles from which the trace is observed and the images (3', 3'') of the particular point (3) of the trace (1) are superimposed to obtain the representation of the transverse profile of the rail in its totality. |
