A nondestructive flaw detection technique, based on a contactless device is presented. To demonstrate its applicability, measurements have been performed on several A1 plates before and after flawing them with one or more scratches. A spectrum analysis shows a significant change in the height of the odd harmonics, which increases with the number and size of the scratches.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.