北京测绘2024，Vol.38Issue(5)：815-821,7.DOI:10.19580/j.cnki.1007-3000.2024.05.027
基于频率域电磁法的城市地下金属管线无损探测技术
Non-destructive detection technology for urban underground metal pipelines based on frequency-domain electromagnetic method
摘要
Abstract
An electromagnetic detection system for underground metal pipelines was studied and designed,which utilized bidirectional synchronous control and digital image processing technology to detect and analyze information such as pipeline position,depth,and type.The sensitivity was improved,and noise interference was suppressed by using phase-locked amplification technology.The experiment proves that the system is reliable and feasible,and the metal pipelines at different positions have different amplitudes and phase differences.The secondary field signal decreases with increasing water depth.This method provides new ideas and methods for non-destructive testing of urban metal pipelines,and it is expected to play an important role in practical applications.关键词
频率域/电磁法/金属管线/地下探测Key words
frequency domain/electromagnetic method/metal pipelines/underground detection分类
天文与地球科学引用本文复制引用
张奎..基于频率域电磁法的城市地下金属管线无损探测技术[J].北京测绘,2024,38(5):815-821,7.基金项目
中央引导地方科技发展基金(YDZX2022019) （YDZX2022019）
