测试技术学报2025，Vol.39Issue(6)：628-634,7.DOI:10.62756/csjs.1671-7449.2025090
管式反应器脉冲涡流检测信号缺陷评估方法
Defect Evaluation of Pulse Eddy Current Signals for Tubular Reactors Detection
摘要
Abstract
Pulse eddy current testing(PECT)technology can be used for the detection of surface defects,but the outer jacket pipe and the cavity between the jacket pipe and the reactor seriously affect the detection accuracy and signal characterization.Thus,this paper proposes a signal processing algorithm based on coordinate transformation.Firstly,an analytical model of PECT for tubular reactors is established,and the expression of the detection signal is obtained.Then,a signal processing method based on coordinate transformation is proposed,and the correlation curves of the defective signal and the non-defective signal are obtained.Moreover,the slope and intercept of the correlation curve have a linear relationship with the degree of damage of the reactor.Finally,the influence of the jacket pipe on the quantitative assessment of reactor defects is analyzed.Results show that the slope and intercept can still achieve quantitative assessment when the jacket pipe has defects.This paper can provide methods and technical support for the detection of tubular reactors.关键词
管式反应器/无损检测/脉冲涡流检测/信号处理/相关性分析Key words
tubular reactor/nondestructive testing/pulse eddy current testing/signal processing/correla-tion analysis分类
信息技术与安全科学引用本文复制引用
丁春雄,朱庆南,俞燕萍,郑凯,张卿..管式反应器脉冲涡流检测信号缺陷评估方法[J].测试技术学报,2025,39(6):628-634,7.基金项目
江苏省特种设备安全监督检验研究院院内科技项目(KJ(Y)202507) （KJ(Y）
