Method, transducer wheel and flaw detection system for ultrasonic detecting railroad rails

摘要: This invention relates to a nondestructive flaw detection method, especially an ultrasonic method for railroad rails, as well the transducer wheel and system implementing method. According solid coupling medium couples sound waves. The according includes tires made of waves permeable materials, probe combining transducer/ultrasonic receiver, sliding plate means reducing friction between bottom tire while detecting. is fixed on axle wheel. receiver mounted plate. While detecting, compels flat press surface rails be detected.