Theoretical modelling of a planar piston field focussed by reflection

A. Neild, D. A. Hutchins, T. J. Robertson, D. W. Schindel

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


This work describes a full rigorous theoretical prediction of the field from a planar piston ultrasonic transducer that is focussed by reflection from an off-axis parabolic mirror. This configuration is of interest in that it produces very high quality images of surfaces and defects. An impulse response method is used with the surface of the mirror approximated to a fine grid of point scatterers to give an overall reflected response. The predictions of this model have been compared with those measured experimentally in air using an optics-grade parabolic mirror, at frequencies of up to 1MHz. Good correlation of theory and experiment is observed.

Original languageEnglish
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
Number of pages4
Publication statusPublished - 2002
Externally publishedYes
EventIEEE International Ultrasonics Symposium (IUS) 2002 - Munich, Germany
Duration: 8 Oct 200211 Oct 2002 (Proceedings)

Publication series

NameProceedings of the IEEE Ultrasonics Symposium
ISSN (Print)1051-0117


ConferenceIEEE International Ultrasonics Symposium (IUS) 2002
Abbreviated titleIUS 2002
Internet address

Cite this