colour logo header1

Experimental Mechanics








Philip Siegmann and Eann Patterson (“the authors”) have designed and developed fringe projection software known as CoPA (“the program”).  This program is available for non-profit  organizations to use for teaching and research subject to agreement of the following conditions:

(1)     any person or organization (“ the user”) downloading the program is granted a non-exclusive, non-assignable, non-transferable license without rights to sublicense to use the program

(2)     any publication arising from the use of the software contains an acknowledgement that the software was obtained from this website and a citation to the following article: SIEGMANN, P., BACKMAN, D., PATTERSON, E.A., 2005, ‘A robust demodulation and unwrapping approach for phase-stepped photoelastic data’, Experimental Mechanics, 45(3):278-289;

(3)     the user agrees that  the authors,  their sponsors and their employers accept no responsibility for the operation of the program or for the correctness of the results obtained from it and no legal liability in contract tort or otherwise shall attend to the authors, their sponsors or their employers arising out of the use of the program.  It is further agreed that in the event of the user being sued by a third party in an action arising out of this agreement, the user will indemnify the authors, their sponsors and their employers in respect of any damages or costs incurred in such action.;

(4)     the authors accept no responsibility to provide maintenance, advisory support, corrections, enhancements, updates or improvements; and

(5)     the software is used in connection with a legally obtained copy of the MatLab program.

To accept these conditions and download the software click on the box below otherwise click here.




I accept these conditions