Thompson Jeffrey G.,Hull John R.,Safai Morteza,Fetzer Barry A.,Georgeson Gary E.,Brady Steven K.
申请号：
US201615265509
公开号：
US9752993(B1)
申请日:
2016.09.14
申请国别(地区):
美国
年份:
2017
代理人:
Thompson Hine LLP
摘要：
A system for nondestructive evaluation of railroad rails, includes a carriage including a plurality of wheels movably supporting the carriage on the rails, a source of vibration mounted on the carriage and connected to transmit vibrations of a preselected frequency to test regions on the rails through the wheels to cause an increase in temperature of the rails at locations of flaws in the test regions, an infrared detector for recording thermal images of the test regions to detect the increase in temperature of the location of the flaws, a controller connected to actuate the infrared detector to record the thermal images of the vibrations impacting the test regions, and store the thermal images recorded by the infrared detector.
