公开(公告)号：US20150355145A1

公开(公告)日：2015-12-10

申请号：US14761151

申请日：2013-12-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Wenji Peng ,  Jeffrey A. Umbach ,  Kevin D. Smith

IPC: G01N29/26

CPC classification number: G01N29/262 ,  G01N29/0645 ,  G01N2291/0234 ,  G01N2291/044 ,  G01N2291/106 ,  G01N2291/2634 ,  G01N2291/2694

Abstract: A computer-implemented method for evaluating echo signals obtained from a phased array experiment on a billet is disclosed. The computer-implemented method may comprise collecting the echo signals from a pulser/receiver unit, correlating the echo signals with a position on a longitudinal axis and a circumferential angle of the billet, computing an amplitude for each of the echo signals, displaying the amplitudes as indications in a c-scan data plot at a computer display unit, and determining the signal-to-noise ratios of indications located in a region-of-interest box relative to noise in surrounding boxes in the c-scan data plot. The computer-implemented method may further comprise classifying each indication as rejectable, reportable, or insignificant based on its amplitude and signal-to-noise ratio. The computer-implemented method may find applications in quality control evaluations in the aircraft industry.

Abstract translation: 公开了一种用于评估从坯料上的相控阵实验获得的回波信号的计算机实现的方法。 计算机实现的方法可以包括从脉冲发生器/接收器单元收集回波信号，将回波信号与纵轴上的位置和坯料的圆周角相关联，计算每个回波信号的幅度，显示振幅 作为计算机显示单元的c扫描数据图中的指示，并且确定位于感兴趣区域中的指示相对于c扫描数据图中的周围框中的噪声的信噪比。 计算机实现的方法还可以包括基于其幅度和信噪比将每个指示分类为可拒绝的，可报告的或无关紧要的。 计算机实现的方法可以在飞机工业的质量控制评估中找到应用。