Ultrasonic beam focusing characteristics of shear-vertical waves for contact-type linear phased array in solid<xref rid="cpb_29_3_034304fn1" ref-type="fn">*</xref><fn id="cpb_29_3_034304fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11774377 and 11574343).</p></fn>

Ultrasonic beam focusing characteristics of shear-vertical waves for contact-type linear phased array in solid**

Project supported by the National Natural Science Foundation of China (Grant Nos. 11774377 and 11574343).

Dai Yu-Xiang^{1, 2}, Yan Shou-Guo^{1, †}, Zhang Bi-Xing^{1, 2}

A profile of the turbine disc head inspected (a) by a linear phased array using p-waves and (b) by a wedge transducer array using SV waves.