磁化对采用直流磁法评估钢筋混凝土结构的影响。

Impact of Magnetization on the Evaluation of Reinforced Concrete Structures Using DC Magnetic Methods.

作者信息

Frankowski Paweł Karol, Chady Tomasz

机构信息

Doctoral School, West Pomeranian University of Technology in Szczecin, Piastow St. 19, 70-310 Szczecin, Poland.

Faculty of Electrical Engineering, West Pomeranian University of Technology in Szczecin, ul. Sikorskigo 37, 70-313 Szczecin, Poland.

出版信息

Materials (Basel). 2022 Jan 23;15(3):857. doi: 10.3390/ma15030857.

DOI:10.3390/ma15030857

PMID:35160811

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8838079/

Abstract

The magnetic method is the most promising method that can be used to inspect large areas of reinforced concrete (RC) structures. Magnetization is a crucial process in this method. The paper aims to present the impact of the magnetization method on the results in the detection of reinforced bars (rebars) and the evaluation of concrete cover thickness in reinforced concrete (RC) structures. Three cases (without magnetization, same pole magnetization, and opposite pole magnetization) were considered in the experiments. Results achieved in all the methods are presented and evaluated. Two different sensing elements were used in the measurements: a magneto-optical (MO) sensor and an AMR sensor. The advantages and disadvantages of both mentioned transducers are presented and discussed in the context of a large areas inspection. The new approach involves using various magnetization methods to improve measurement results for complex structures.

摘要

磁法是可用于检测大面积钢筋混凝土（RC）结构最具前景的方法。磁化是该方法中的关键过程。本文旨在阐述磁化方法对钢筋混凝土（RC）结构中钢筋检测结果及混凝土保护层厚度评估的影响。实验中考虑了三种情况（无磁化、同极磁化和异极磁化）。展示并评估了所有方法所取得的结果。测量中使用了两种不同的传感元件：磁光（MO）传感器和各向异性磁电阻（AMR）传感器。在大面积检测的背景下，阐述并讨论了上述两种传感器的优缺点。新方法涉及使用各种磁化方法来改善复杂结构的测量结果。