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.

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.

Authors

J.R. Fletcher

G.P. Swift

A. Gallant

J. Levitt

D.C. Dai

J.M. Chamberlain

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). Detection of Separation of Laminated Materials by Reflected THz Pulses.

Conference Name	9th European NDT Conference (ECNDT).
Conference Location	Berlin
Publication Date	Jan 1, 2006
Deposit Date	Sep 29, 2010
Publisher URL	http://www.ndt.net/article/ecndt2006/sessi~58.htm
Additional Information	Paper number: We.2.8.3.