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http://dx.doi.org/10.7776/ASK.2008.27.6.263

Optimal Design and Analysis of a Medical Imaging Ultrasonic Array Sensor  

Kim, Hoe-Yong (경북대학교 기계공학과)
Roh, Yong-Rae (경북대학교 기계공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.27, no.6, 2008 , pp. 263-270 More about this Journal
Abstract
The performance of an ultrasonic array sensor is determined by the properties of constituent materials and the effects of many structural parameters. In this study, with the finite element method, variation of the performances of an ultrasonic array sensor was analyzed in relation to its structural variables. Based on the analysis result, the structure of the ultrasonic array sensor was optimized to provide the highest sensitivity while satisfying such requirements as fractional bandwidth, center frequency and -20 dB pulse length. The optimization was carried out with the SQP-PD method for a target function composed of the ultrasonic array sensor performance. The optimized ultrasonic array sensor satisfied all the required specifications to be applicable to medical imaging diagnosis. The design technology in this paper can be utilized for other ultrasonic array sensors of a similar structure.
Keywords
Ultrasonic; Array sensor; Optimization; FEM;
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