Patent ID: 8170809
Filing Date: 2012-05-01
Classification: G01N

Abstract:
1. An ultrasonic guided-wave nondestructive testing method for a pipe, comprising: placing an array of transducers on the pipe; placing a self-calibrating sensor arrangement on the pipe; generating a wave through the transducers from a mode selection routine, operable on a computer for selection of a mode of excitement for the array of transducers; receiving the wave through the sensor arrangement and processing the wave through a sensor receiving routine operable on the computer, the computer configured to operate with the self-calibrating sensor arrangement and receive the wave from the array of transducers; and processing the wave through the computer with a signal enhancement process; wherein at least one of a bond state of internal and external pipe coatings are characterized through the signal enhancement process and any present coating disbonds are detected and sized approximately.