A non‐contact gap measurement method for narrow and irregular targets using inductive planar sensors with simple calibration
A non‐contact gap measurement method for narrow and irregular targets using inductive planar sensors with simple calibration
复制标题
一种使用简单校准的电感式平面传感器对狭窄和不规则目标进行非接触式间隙测量的方法
DOI:
10.1049/smt2.12071
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Zhe, Jiang
中科院分区:
文献类型:
--
作者:
Jiao, Dian;Ni, Liwei;Yu, Xueyang;Zhe, Jiang
Planar inductive sensors are widely used for non‐contact gap measurement. Usually, a change in size, shape, or material of the target requires a tedious recalibration of the measurement setup. This paper aims to present a new method to measure the gap from irregular and narrow targets using a planar inductive sensor without this tedious calibration process. The magnetic field distribution on this target was numerically studied, and the findings suggested that a simpler calibration would work by modeling the induced current in the target as a virtual planar coil. For this target, we found that the calibration curves corresponding to different materials can be obtained by adding a constantCto the base curve. To validate this approach, three planar coils of different sizes were tested with four metallic turbine blade‐shaped targets. Results showed that the measured gaps matched well with the real gaps, with a maximum error of about 3.703%. The new approach can be applied to various applications including 3D printer build platform calibration, bandsaw blade deviation detection, and blade tip clearance monitoring.
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DOI:
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期刊:
Information Security Solutions Europe
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