Method and apparatus for measuring and controlling refracted angle of ultrasonic waves.

摘要

A method and an apparatus for measuring and then controlling the refracted angle of ultrasonic waves propagating through a component. The method directly measures the actual refracted angle of ultrasound in an industrial component while performing nondestructive examination by measuring the slopes of characteristic echo-dynamic lines. These slopes are related to the angle of refraction by a simple mathematical relationship. A pattern recognition filtering method is used to identify the echo-dynamic pattern. The slope of an echo-dynamic line is computed after an edge detection algorithm is applied to the data. <IMAGE>