NDLI: An Evolution Strategy for Improving the Design of Phased Array Transducers

Content Provider	IEEE Xplore Digital Library
Author	Chen, S. Razzaqi, S. Lupien, V.
Copyright Year	2006
Description	Author affiliation: York Univ., Toronto (Chen, S.)
Abstract	Continuum Probe Designertrade by Acoustic Ideas Inc. is a tool that can help design an optimized phased array ultrasonic transducer for a given inspection task. One component of Continuum Probe Designertrade can calculate the cost of a probe for a given geometry, and the fmincon function in the MATLABreg optimization toolbox has been used to find the optimal probe geometry. However, the search space of probe geometries is very noisy, and the inconsistent performance of fmincon in this noisy search space has interfered with the deployment of Continuum Probe Designertrade as a commercial product. An evolution strategy has been developed that includes "smart" start points and coordinated parallel runs. Compared to fmincon, the developed evolution strategy finds solutions that require an average of 61.4% fewer elements. Since control instrumentation can only handle a limited number of independent channels, the evolution strategy designs are also more than five times more likely to be implementable. These improvements that have been achieved by the evolution strategy will play an important role in the commercial deployment of Continuum Probe Designertrade.
Starting Page	2859
Ending Page	2863
File Size	234103
Page Count	5
File Format	PDF
ISBN	0780394879
DOI	10.1109/CEC.2006.1688668
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Probes Geometry Ultrasonic transducers Design optimization Ultrasonic transducer arrays Acoustic transducers Acoustic arrays Inspection Cost function
Content Type	Text
Resource Type	Article

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