Method of analyzing the condition of a surface
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United States of America Patent
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N/A
Issued Date -
Aug 15, 2002
app pub date -
Feb 9, 2002
filing date -
Feb 9, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of analyzing the condition of a surface such as that of a rail, includes: causing a vehicle to travel along the rail, the vehicle having a first wheel and a second wheel which are in contact with the rail; detecting through the first wheel sound signals propagating along the rail from the second wheel as a consequence of the second wheel traveling along the rail; and analyzing the characteristic features of these sound signals to determine the condition of the rail. This method avoids the use of an ultrasonic sound generator, and can be fitted to standard freight and/or passenger trains to provide a constantly updated picture of the condition of the rails in a railway system.
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