METHOD AND DEVICE FOR CHECKING STATUS OF RAILWAY TRACK Russian patent published in 1998 - IPC

FIELD: railway track repair and maintenance technology. SUBSTANCE: this relates to checking general condition of railway track. According to method, determined are geographic coordinates of starting point of track measuring car according to data obtained from space satellite navigation system and they are memorized together with antecedent value. In course of travelling of track measuring car measured in cycles and asynchronously are values of distance covered, power factors of dynamic interaction of rolling stock and railway track, height of irregularities on rolling surface of rails, orientation angles of track measuring car in geographic system of coordinates, and accelerations in direction of axes of general system of coordinate of track measuring car. Device for checking status of railway track is installed on measuring car and incorporates sensors for measuring vertical and horizontal displacements of rail heads relative to car body, sensors for measuring rail track gauge, covered distance sensor, computer, navigation system, space satellite navigation system, radar. Application of aforesaid method and device allows for measuring true geometric parameters of rail track at high accuracy and reliability at travel speed of track measuring car of up to 250 km/h. EFFECT: higher efficiency. 2 cl, 6 dwg