Ultrasonic phased array technique can help to achieve flexible, controllable synthesized ultrasound beam by exciting each element of an ultrasonic array transducer with independent phase delay.
超声相控阵技术通过对超声阵列换能器中各阵元进行相位控制，获得灵活可控的合成波束。
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The capacitive gate transducer has several kinds of exciting voltage forms that affect its performances greatly. But this problem is investigated little.