초록

Disclosed is a method and apparatus for determining the gage and/or wear of railroad tracks in which optical scanning techniques are used in conjuction with a programmable computer for determining the gage and/or wear of the rails.

대표청구항 ▼

Apparatus for the non-contact measurement of rail parameters, comprising: means for illuminating at least one of the left and right rails of a track; means for detecting a selected portion of light reflected from at least one of the left and right rails and generating video signals representative th

Apparatus for the non-contact measurement of rail parameters, comprising: means for illuminating at least one of the left and right rails of a track; means for detecting a selected portion of light reflected from at least one of the left and right rails and generating video signals representative thereof; said means for illuminating and said means for detecting being mounted for movement along said rails; and means for processing said video signals to determine at least one of the gage and wear of said rails using a repetitive frame scanning pattern formed by a grid of lines perpendicular to the profile of said rails with each line including a number of pixels, and including means for determining a line and the location of a pixel therein representative of at least a gage point on the gage face of at least one of said left and right rails for selected frames of said repetitive frame scanning pattern.