PROBLEM TO BE SOLVED: To provide an ultrasonic inspection apparatus in which receiving channels are increased to improve S/N, but the size, the power consumption, and the cost are prevented from deteriorating due to scaling up of a receiving circuit.SOLUTION: A receiving opening is expanded so that many signals in the same phase can be detected at the same time. As a result, the analog phasing addition processing by a delay circuit and the digital beam forming processing are made unnecessary, and a circuit scale is reduced while increasing the receiving points of a signal.COPYRIGHT: (C)2012,JPO&INPIT【課題】超音波検査装置において、受信チャンネルを増やしてS/Nを改善しようとすると、受信回路の規模が大きくなり、サイズ、消費電力、コストが悪化する。【解決手段】受信開口を広げて、同時刻に同位相の信号を多数検出可能とする。これにより、遅延回路によるアナログ整相加算処理や、デジタルビームフォーミング処理を不要とし、信号の受信点を増やしながら、回路規模を削減する。【選択図】図1
