This product is a high-precision measuring instrument for rail transit customized and developed according to customer needs. The device uses the form of transmitting and receiving laser signals for detection, and can display the vertical distance between the starting point and the horizontal plane of the measured point, with an accuracy controlled within 1mm.
The main function of the product is to detect the height from the centerline of the subway track inspection vehicle coupler to the track surface, as well as to statically detect whether the size of obstacles in the vehicle's driving path has entered the limit of the vehicle's outer contour.