【摘要】 扼要介绍超声相控阵技术的发展历史、原理及特点。着重介绍其最新研究动态及其在核工业无损检测与评价中的典型应用。指出将相控阵技术同其它诸如纵波一发一收 (TRL)、声时衍射 (TOFD)技术、数字信号处理 (DSP)及成像等技术结合起来 ,将有助于充分发挥其特点 ,提高其检测能力 ,促进无损检测与评价的发展及应用。更多还原

【Abstract】 The development history, theory and characterization of ultrasonic phased array technique, especially the state of the arts and applications of the technique in nuclear industry nondestructive testing and evaluation (NDT & E) are described. Combining phased array technique with TRL(the transmitter receiver technique for longitudinal waves), TOFD(time of flight diffraction), DSP(digital signal processing) and imaging technique will improve detectability and promote NDT&E development and application.更多还原