TY - JOUR

T1 - A Technique for Multi-Parameter Signal Processing of an Eddy-Current Probe for Measuring the Thickness of Non-Conductive Coatings on Non-Magnetic Electrically Conductive Base Metals

AU - Сясько, Михаил Владимирович

AU - Соломенчук, Павел

AU - Соловьев, Игорь Павлович

AU - Ампилова, Наталья Борисовна

PY - 2023/4/20

Y1 - 2023/4/20

N2 - The known amplitude-sensitive eddy-current method for measuring the thickness of a non-conductive coatings on a conductive non-magnetic base metals does not satisfy the accuracy requirements. A primary consideration is the significant influence of a change in the specific elec-trical conductivity of the base metals on results of measurements. In this study we develop a tech-nique for measuring the thickness of a non-conductive coatings on a non-magnetic conductive base metals by using the eddy-current amplitude-phase method, and implement algorithms to process obtained information. Our method takes into account the influence of the specific electrical con-ductivity of the base metals by forming a two-dimensional graduation characteristic of the thick-ness gauge by using several base metals with different electrical conductivity. The algorithm for point-in-polygon determination is applied, which allows us to measure the thickness of the coat-ings and the specific electrical conductivity of the base metals as independent values. The equip-ment necessary to construct the two-dimensional graduation characteristic and the algorithm for calculation of the thickness are described in detail.

AB - The known amplitude-sensitive eddy-current method for measuring the thickness of a non-conductive coatings on a conductive non-magnetic base metals does not satisfy the accuracy requirements. A primary consideration is the significant influence of a change in the specific elec-trical conductivity of the base metals on results of measurements. In this study we develop a tech-nique for measuring the thickness of a non-conductive coatings on a non-magnetic conductive base metals by using the eddy-current amplitude-phase method, and implement algorithms to process obtained information. Our method takes into account the influence of the specific electrical con-ductivity of the base metals by forming a two-dimensional graduation characteristic of the thick-ness gauge by using several base metals with different electrical conductivity. The algorithm for point-in-polygon determination is applied, which allows us to measure the thickness of the coat-ings and the specific electrical conductivity of the base metals as independent values. The equip-ment necessary to construct the two-dimensional graduation characteristic and the algorithm for calculation of the thickness are described in detail.

KW - amplitude-phase algorithm

KW - eddy-current

KW - thickness gauge

KW - two-dimensional graduation

UR - https://www.mendeley.com/catalogue/817de60e-599a-3c6b-b150-4c59b57806c2/

U2 - 10.3390/app13085144

DO - 10.3390/app13085144

M3 - Article

VL - 13

JO - Applied Science

JF - Applied Science

IS - 8

M1 - 5144

ER -