Non-destructive structural imaging of steelwork with atomic magnetometers
Non-destructive structural imaging of steelwork with atomic magnetometers
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DOI：
10.1063/1.5042033
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发表时间：
2018-08-06
影响因子：
4
通讯作者：
Renzoni, F.
中科院分区：
文献类型：
--
作者：
Bevington, P.;Gartman, R.;Renzoni, F.
我们展示了铁磁性碳钢样品的成像，我们检测到他们的配置文件的灵敏度为0.1毫米，使用铯射频原子磁力计的变薄。在室温下，在磁性非屏蔽环境中获得图像。通过使用设置的专用布置和背景场的主动补偿，由样品的磁化产生的磁干扰被补偿。还提供了在存在隐蔽导电屏障的情况下进行非破坏性结构评估的概念验证演示。设想了在不中断业务的情况下对钢结构检查以及健康和使用情况监测的相关影响，从建筑焊接到管道检查和能源部门绝缘下的腐蚀，工业都将直接受益。由AIP出版社出版。
We demonstrate the imaging of ferromagnetic carbon steel samples and we detect the thinning of their profile with a sensitivity of 0.1 mm using a Cs radio-frequency atomic magnetometer. Images are obtained at room temperature, in magnetically unscreened environments. By using a dedicated arrangement of the setup and active compensation of background fields, the magnetic disturbance created by the samples' magnetization is compensated. Proof-of-concept demonstrations of non-destructive structural evaluation in the presence of concealing conductive barriers are also provided. The relevant impact for steelwork inspection and health and usage monitoring without disruption of operation is envisaged, with direct benefit for industry, from welding in construction to pipeline inspection and corrosion under insulation in the energy sector. Published by AIP Publishing.