Railroad maintenance vehicle reference system transducer
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United States of America Patent
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-
Apr 8, 1997
Grant Date -
N/A
app pub date -
Sep 23, 1994
filing date -
Sep 23, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A transducer for use in a railroad track maintenance chord reference system for measuring the vertical and horizontal position of the rails of the track. The transducer is carried by a carriage riding on the rails and provides a signal indicative of the offset between the reference chord and the rails. Each transducer includes a uncounterbalanced arm mounted to the transducer housing by a low friction carriage. The arm engages and follows a reference chord causing the arm to move as the carriage moves with respect to the chord. A linear displacement transducer is mounted within the housing to provide a signal indicative of the arm position and therefore indicative of the position of the rails.
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