| Paper: | idn314 |
| Name: | Zhihong Qian |
| Company: | Jilin University Of Technology Dept. of Electronics Eng. |
| Address: | 142 Renmin Street 130025 ChangChun |
| Country: | P. R. China |
| Phone: | +86 431 5696680 |
| Fax: | +86 431 5683397 |
| Email: | qzhih@263.net |
| NDT.net | |15th WCNDT CD-ROM| |