FIELD: railway transport; measuring facilities. SUBSTANCE: proposed device makes it possible to obtain three peripheral profiles of zone of contact of wheel rolling surface when railway vehicle moves along installed at low speed. As soon as obtained data are processed by computer in real time, shape deviation is revealed. Installation consists of equipment mounted at base of rail track and formed by running support with its guard rail, wheel position pickups, radial displacement check system and electronic control system. The latter transmits data to computer where information is processed and statistics data are accumulated and in which results are displayed and stored. EFFECT: possibility of studying causes of studying causes of troubles for elimination of troubles in due time. 6 cl, 3 dwg
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