Detection of Separation of Laminated Materials by Reflected THz Pulses

Fletcher, J.R.; Swift, G.P.; Gallant, A.; Levitt, J.; Dai, D.C.; Chamberlain, J.M.

Abstract

A method is described for the detection and measurement of subwavelength gaps in laminated non-metallic materials, using numerical processing of returned THz echo pulses. Data from artificially constructed phantoms are presented. Deconvolution using a reference pulse gives depth resolution to a small fraction of a wavelength, enabling corresponding layer separations to be measured.

Citation

Fletcher, J., Swift, G., Gallant, A., Levitt, J., Dai, D., & Chamberlain, J. (2006, December). Detection of Separation of Laminated Materials by Reflected THz Pulses. Presented at 9th European NDT Conference (ECNDT)., Berlin

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 9th European NDT Conference (ECNDT).
• Publication Date: Jan 1, 2006
• Deposit Date: Sep 29, 2010
• Public URL: https://durham-repository.worktribe.com/output/1678867
• Publisher URL: http://www.ndt.net/article/ecndt2006/sessi~58.htm
• Additional Information: Paper number: We.2.8.3.