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《Acta Electronica Sinica》 2017-08
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The Optimization Research on Element Failure of Ultrasonic Array Transducer

YIN Guan-jun;FAN Hao-ran;KANG Dong-dong;GUO Jian-zhong;School of Physics and Information Technology,Shaanxi Normal University,Institute of Applied Acoustics,Shaanxi Normal University;  
Array transducer is the crucial component of all kinds of these instruments depending on ultrasonic phased array technology. While,efficiency changing and size error of a single element or several elements can make significant negative effects on the acoustic field and its directivity,and reduce the detection effect on the field of high performance and high resolution application. Using the adaptive algorithms,we presented a method to optimize and correct the array from the excitation mode of elements. By adjusting the excitation amplitude of each normal elements,the influence to the acoustic field from element failure can be decreased availably. The experiment results and theoretical analysis indicate that this method is much available to correct the acoustic field of the array with disabled elements by using the acoustic pressure of a fewreference points in the field. In consequence,the array transducer with element failure or size errors can be well optimized by the method we proposed.
【Fund】: 国家自然科学基金(No.11574192 No.11274217);; 陕西师范大学中央高校基本科研业务费专项资金资助(No.GK201704003)
【CateGory Index】: TB552
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