Forum Technical Discussions      Re: mode conversion Posted by: Ed Ginzel    (PID_67), E-mail: Address, on December 15, 2008 at 15:52 : In Reply to: mode conversion posted by : hemachandra , E-mail: Address, on December 15, 2008 at 14:43 : Hemachandra Angled compression mode is commonly used in ultrasonic applications...a great summary has been provided of the sort of applications it finds at http://www.ndt.net/article/pow1297/schmid/schmid.htm By mode conversion we understand the change of a compression mode to a transverse mode or visa versa. These events occur as a result of boundary interactions of a wavefront. An interesting exception to this assumption is the SH shear mode which does not mode convert to L mode! Ed ----------- Start Original Message ----------- : Dear all , : 1)why cant we use angled longitudinal beam for inspection as it has higehr velocity? can we able to produce angled longitudinal beam? : 2) in TOFD we use angled Longitudianl beam? so i think we can get angled longitudinal beam. : 3)mode conversion start in material or wedge????????? ------------ End Original Message ------------ Follow Ups: Post a Followup: Name: E-Mail: Subject: Comments: ----------- Start Original Message ----------- : Hemachandra : Angled compression mode is commonly used in ultrasonic applications...a great summary has been provided of the sort of applications it finds at http://www.ndt.net/article/pow1297/schmid/schmid.htm : By mode conversion we understand the change of a compression mode to a transverse mode or visa versa. These events occur as a result of boundary interactions of a wavefront. : An interesting exception to this assumption is the SH shear mode which does not mode convert to L mode! : Ed : : Dear all , : : 1)why cant we use angled longitudinal beam for inspection as it has higehr velocity? can we able to produce angled longitudinal beam? : : 2) in TOFD we use angled Longitudianl beam? so i think we can get angled longitudinal beam. : : 3)mode conversion start in material or wedge????????? ------------ End Original Message ------------ Optional Link URL: Example: "http://www....html". Alternative write "http://www.ndt.net/wshop/attach/filename.htm" if you transfered a filename.htm via FTP Page Title: is important! Optional Image URL: http://www....gif Attention! Please click the button only once. This may take a moment to process Forum Technical Discussions Help