| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic probe capable of precisely measuring thickness even if a measurement object has large attenuation. <P>SOLUTION: The ultrasonic probe includes: a plurality of transmission vibrators 11 which are annularly arranged, form a plurality of transmission channels and have first resonance frequencies; and a plurality of reception vibrators 13 which are arranged in a cross shape, form reception channels and have second resonance frequencies lower than the first resonance frequencies. Centers of the plurality of reception vibrators arranged in the cross shape are arranged at centers in a radial direction of the transmission vibrators which are annularly arranged. <P>COPYRIGHT: (C)2012,JPO&INPIT |
