Detection of surface defects in film-coated metals and measurement of coating thickness

Xiaoqing Yang; Junlong Chen; Yi Xie; Piqiang Su; Jiefang Luo; Xuexue Lei; Hui Xiao; Jianping Yuan; Zhanxia Zhu

doi:10.1063/1.5109480

Detection of surface defects in film-coated metals and measurement of coating thickness

Xiaoqing Yang
, Junlong Chen
, Yi Xie
, Piqiang Su
, Jiefang Luo
, Xuexue Lei
, Hui Xiao
, Jianping Yuan
, Zhanxia Zhu

School of Astronautics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A novel sensor based on the interdigitated structure is presented to detect surface defects in film-coated metals and measure coating thickness. The detection and measurement are based on monitoring the shift of resonance frequency which is caused by the perturbation of electromagnetic field around the interdigitated structure. A 200-μm-wide defect was successfully detected in the experiment. In addition, the numerical simulations show that the designed sensor can detect a 50-μm-wide defect with a 220 MHz shift in the resonance frequency. The sensor is sensitive, inexpensive, portable, and can detect both defects and measure coating thickness.

Original language	English
Article number	095005
Journal	Review of Scientific Instruments
Volume	90
Issue number	9
DOIs	https://doi.org/10.1063/1.5109480
State	Published - 1 Sep 2019

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10.1063/1.5109480

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title = "Detection of surface defects in film-coated metals and measurement of coating thickness",

abstract = "A novel sensor based on the interdigitated structure is presented to detect surface defects in film-coated metals and measure coating thickness. The detection and measurement are based on monitoring the shift of resonance frequency which is caused by the perturbation of electromagnetic field around the interdigitated structure. A 200-μm-wide defect was successfully detected in the experiment. In addition, the numerical simulations show that the designed sensor can detect a 50-μm-wide defect with a 220 MHz shift in the resonance frequency. The sensor is sensitive, inexpensive, portable, and can detect both defects and measure coating thickness.",

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AU - Yang, Xiaoqing

AU - Chen, Junlong

AU - Xie, Yi

AU - Su, Piqiang

AU - Luo, Jiefang

AU - Lei, Xuexue

AU - Xiao, Hui

AU - Yuan, Jianping

AU - Zhu, Zhanxia

PY - 2019/9/1

Y1 - 2019/9/1

N2 - A novel sensor based on the interdigitated structure is presented to detect surface defects in film-coated metals and measure coating thickness. The detection and measurement are based on monitoring the shift of resonance frequency which is caused by the perturbation of electromagnetic field around the interdigitated structure. A 200-μm-wide defect was successfully detected in the experiment. In addition, the numerical simulations show that the designed sensor can detect a 50-μm-wide defect with a 220 MHz shift in the resonance frequency. The sensor is sensitive, inexpensive, portable, and can detect both defects and measure coating thickness.

AB - A novel sensor based on the interdigitated structure is presented to detect surface defects in film-coated metals and measure coating thickness. The detection and measurement are based on monitoring the shift of resonance frequency which is caused by the perturbation of electromagnetic field around the interdigitated structure. A 200-μm-wide defect was successfully detected in the experiment. In addition, the numerical simulations show that the designed sensor can detect a 50-μm-wide defect with a 220 MHz shift in the resonance frequency. The sensor is sensitive, inexpensive, portable, and can detect both defects and measure coating thickness.

UR - https://www.scopus.com/pages/publications/85072656126

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DO - 10.1063/1.5109480

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VL - 90

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 9

M1 - 095005

ER -

Detection of surface defects in film-coated metals and measurement of coating thickness

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