| 摘要 |
<p>A method for non-destructive testing the teeth of a high power electrical generator rotor comprises the steps of: providing a plurality of ultrasonic pulse echo transducers (22,..,25) being arranged in an array (20), and being positioned and aligned in such a way as to provide a range of different inspection angles for the tooth geometry; positioning the array (20) on top of the rotor tooth; exciting at least one of said plurality of ultrasonic pulse echo transducers (22,..,25) to produce a transmission beam for the interrogation of wedge angle on the underside of the tooth; and conditioning the acquired data from said at least one of said plurality of ultrasonic pulse echo transducers (22,..,25) to capture reflection from the flaws within the tooth.</p> |
