Abstract
A mathematical model is presented eddy current sensor located above conductive half-space obtained by the discrete method. Based of such a model, the calculation formulas are given insertion impedance per turn and round flat coil, as well as their sensitivity to changes in the size of the gap. Using this model allows you to reduce time of electromagnetic analysis and calculation parameters of the eddy current sensor, to improve the accuracy of calculations in comparison with approximate methods. The proposed method implementation of a model for multi-parameter control using microcontrollers, which is considered by the example of determining the size of the gap
Highlights
Постановка задачиРассмотрим плоскопараллельный виток с переменным гармоническим током Iв , расположенный на расстоянии h от объекта контроля (ОК) с частотой , как показано на рис
Представлена математическая модель вихретокового сенсора размещенного над электропроводным полупространством, полученная дискретным методом
This work is dedicated to eddy current sensor over electroconductive half-space discrete model development
Summary
Рассмотрим плоскопараллельный виток с переменным гармоническим током Iв , расположенный на расстоянии h от ОК с частотой , как показано на рис. Запишем результирующее уравнение второго порядка для угловой составляющей вектор-потенциала A в цилиндрических координатах, минуя выводы [1]:
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