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A method and apparatus for dynamically measuring a railroad track condition using a railroad truck with metal track engaging wheels as a reference platform from which a line of sight reference plane spaced from the track is created. Measurements are successively taken between the track and the refer

A method and apparatus for dynamically measuring a railroad track condition using a railroad truck with metal track engaging wheels as a reference platform from which a line of sight reference plane spaced from the track is created. Measurements are successively taken between the track and the reference plane as the railroad truck moves along the track.

대표청구항 ▼

1. A method for dynamically measuring a condition of a railroad track having two parallel spaced rails using at least first and second railroad car supporting railroad trucks each having at least two spaced pairs of wheels engaging each of said parallel spaced rails with one wheel of each pair engag

1. A method for dynamically measuring a condition of a railroad track having two parallel spaced rails using at least first and second railroad car supporting railroad trucks each having at least two spaced pairs of wheels engaging each of said parallel spaced rails with one wheel of each pair engaging one of said spaced rails which includes:providing a first railroad car supporting truck on said railroad track to be measured as a first reference railroad truck, providing a second railroad car supporting truck as a first sensing railroad truck on said railroad track to be measured in spaced relation to said first railroad car supporting truck, creating a first line of sight reference plane above and parallel to at least one of said spaced rails which extends from said first reference railroad truck outwardly toward said first sensing railroad truck, moving said first and second railroad car supporting trucks together at the same speed along the railroad track to be measured, and measuring during a measurement cycle the position of the railroad track under said second railroad car supporting truck relative to said first line of sight reference as said first and second railroad car supporting trucks move along said railroad track.