(19)

(11)

EP 2 329 296 A2

(12)

(88) Date of publication A3: 11.11.2010 (43) Date of publication: 08.06.2011 Bulletin 2011/23 (21) Application number: 09785004.4 (22) Date of filing: 25.08.2009

(51) International Patent Classification (IPC):  G01T 1/29(2006.01) (86) International application number: PCT/GB2009/002069 (87) International publication number: WO 2010/026363 (11.03.2010 Gazette 2010/10)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 04.09.2008 GB 0816159 (71) Applicants: Symetrica Limited Southampton Hampshire SO16 7NP (GB) UNIVERSITY OF SOUTHAMPTON Highfield, Southampton SO17 1BJ (GB)	(72) Inventors: RAMSDEN, David Hampshire SO16 7NP (GB) BIRD, Antony Southampton, Hampshire SO17 1BJ (GB) SKINNER, Gerry Annapolis MD 21401 (US) (74) Representative: Lewis, Darren John  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)