Wheelset sensing system

Details Wheelset sensing system Wheelset sensing system

1998-05-12

1999-08-10

Hantis, K P

Optics: measuring and testing

By polarized light examination

With light attenuation

356385, G01B 1124

Patent

active

059367377

ABSTRACT:
A process for measuring the wheel profiles of wheels of wheelsets in which the wheelsets are moved past a series of a least twenty-six separate sensors while being rotated and moved at specified speeds. The wheelsets are impinged with a multiplicity of laser beams whose reflections are measured by the sensors, thereby indicating various wheel profile properties. In one embodiment, the wheelsets are rotated at a speed of less than 75 revolutions per minute while being moved at a speed of less than 6 miles per hour. In another embodiment, the wheelsets are rotated at a speed of greater than 400 revolutions per minute while being moved at a speed of greater than 45 miles per hour. In both embodiments, the wheelsets are moved past the sensors in a period of less than about 20 seconds.

REFERENCES:
patent: 3767146 (1973-10-01), Gallagher
patent: 4798963 (1989-01-01), Wittkopp et al.
patent: 4932784 (1990-06-01), Danneskiold-Samsoe
patent: 5636026 (1997-06-01), Mian et al.

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