公开(公告)号：EP3828589A1

公开(公告)日：2021-06-02

申请号：EP20204485.5

申请日：2020-10-28

申请人： HITACHI-GE NUCLEAR ENERGY, LTD.

发明人： KITAZAWA, Sou ,  NIDAIRA, Yasuhiro ,  EHARA, Kazuya ,  NAGANUMA, Junichiro

IPC分类号： G01S7/52 ,  G01N29/44 ,  G01S15/89 ,  G01N29/04 ,  G01N29/34

摘要： An ultrasonic inspection method in which a pulse signal is output to an ultrasonic sensor to generate and transmit ultrasonic waves, the ultrasonic waves reflected or scattered by an object are received and converted into a waveform signal by the ultrasonic sensor, and the waveform signal is digitized to acquire waveform data, includes: executing modulation processing for modulating a plurality of waveform data acquired in multiple inspections and under the same inspection conditions by a phase modulation method to generate composite waveform data; and executing demodulation processing for demodulating the composite waveform data to generate compressed waveform data.