当前位置: X-MOL 学术Int. J. Appl. Electromagn. Mech. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Probabilistic evaluation of detection capability of eddy current testing to inspect pitting on a stainless steel clad using multiple signal features
International Journal of Applied Electromagnetics and Mechanics ( IF 0.6 ) Pub Date : 2020-12-10 , DOI: 10.3233/jae-209306
Takuma Tomizawa 1 , Haicheng Song 1 , Noritaka Yusa 1
Affiliation  

This study proposes a probability of detection (POD) model to quantitatively evaluate the capability of eddy current testing to detect flaws on the inner surface of pressure vessels cladded by stainless steel and in the presence of high noise level. Welded plate samples with drill holes were prepared to simulate corrosion that typically appears on the inner surface of large-scale pressure vessels. The signals generated by the drill holes and the noise caused by the weld were examined using eddy current testing. A hit/miss-based POD model with multiple flaw parameters and multiple signal features was proposed to analyze the measured signals. It is shown that the proposed model is able to more reasonably characterize the detectability of eddy current signals compared to conventional models that consider a single signal feature.

中文翻译:

涡流测试检测能力的概率评估,以使用多个信号特征检查不锈钢包层上的点蚀

这项研究提出了一种检测概率(POD)模型,以定量评估涡流测试的能力,以检测不锈钢包覆的压力容器内表面上存在高噪声水平的缺陷。准备了带有钻孔的焊接板样品,以模拟通常在大型压力容器内表面上出现的腐蚀。使用涡流测试检查钻孔产生的信号和焊接产生的噪声。提出了具有多个缺陷参数和多个信号特征的基于命中/未命中的POD模型来分析测量的信号。结果表明,与考虑单个信号特征的常规模型相比,该模型能够更合理地表征涡流信号的可检测性。
更新日期:2020-12-16
down
wechat
bug