Details of Grant 

EPSRC Reference:	GR/A01213/01
Title:	ADAPTIVE ACOUSTICS
Principal Investigator:	Clark, Professor M
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Sch of Electrical and Electronic Eng
Organisation:	University of Nottingham
Scheme:	Advanced Fellowship (Pre-FEC)
Starts:	01 April 2000	Ends:	31 March 2005	Value (£):	208,247
EPSRC Research Topic Classifications:	Acoustics
EPSRC Industrial Sector Classifications:	Electronics
Related Grants:
Panel History:
Summary on Grant Application Form
This proposal investigates adaptive acoustics. It will develop adaptive acoustic techniques in general and apply them specifically in the area of advanced non-contact laser ultrasonics. It will look at the problems associated with acoustic imaging in aberrating media. Most engineering materials, in particular metals, can be considered aberrating if the acoustic frequency is high enough or the acoustic path length is long enough.Drawing on the concepts of time reversal and adaptive optics this proposal will tackle the problems associated with acoustic aberrations. It will develop adaptive solutions to improve imaging in aberrating materials and develop the core technologies of adaptive acoustic generation and acoustic wavefront sensing for non-contact ultrasonics. It will address the problems associated with acoustic imaging and measurement in aberrating materials for both adaptive and non-adaptive techniques. It will explore the limits of measurement accuracy and reliability, and develop models for the effects of the aberration especially on the probability of detection of flaws and defects.This proposal integrates the study of adaptive acoustic techniques and the effects of materials aberrations with advanced non-contact techniques in the development of a new instrument, the non-contacting adaptive SAW microscope. This will be capable of fast, high frequency, non-destructive, non-contact acoustic imaging, with a variety of contrast mechanisms in a wide range of everyday engineering materials.
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Organisation Website:	http://www.nottingham.ac.uk