OPTOELECTRONIC SYSTEM OF NONCONTACT MEASUREMENT OF RAILWAY GAUGE GEOMETRIC CHARACTERISTICS IN MOTION; OPTOELECTRONIC SENSOR FOR NONCONTACT MEASUREMENT OF RAIL POSITION AND WEAR Russian patent published in 1999 - IPC

FIELD: railway transport; testing facilities. SUBSTANCE: invention relates to track measuring devices for measuring rail cross section profile, side and vertical deviations. Proposed system includes optoelectronic sensors mounted on sprung frame of car bogie, also in middle at right and left side, and in middle of car on longitudinal axis. Sensors form short and long measuring bases. Optoelectronic sensor has exposure unit including laser light source. This is optically coupled through rail with image unit which includes optical devices. One of optical devices is oriented for horizontal and the other, for vertical components of rail image. Optical device is made on basis of instrument with charge coupling and is connected to signal processing unit. EFFECT: enhanced reliability and accuracy of measurement, reduced overall dimensions of sensor. 4 cl, 6 dwg