Array type far-field eddy current data analysis method and system
The invention provides an array type far-field eddy current data analysis method and system, and relates to the technical field of nondestructive testing of far-field eddy current, and the analysis method comprises the steps: obtaining an excitation signal generated by an excitation coil; amplifying...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an array type far-field eddy current data analysis method and system, and relates to the technical field of nondestructive testing of far-field eddy current, and the analysis method comprises the steps: obtaining an excitation signal generated by an excitation coil; amplifying the excitation signal to obtain a far-field eddy current detection signal; performing analog-to-digital conversion on the detection signal and the excitation signal to obtain a target receiving signal; performing data processing according to the target receiving signal to obtain an amplitude and a phase of a corresponding far-field eddy current signal; the data processing comprises phase real part processing and phase imaginary part processing, and the real part processing and the imaginary part processing are interactively carried out. According to the analysis method and system, the mechanical design and the hardware circuit for analyzing the far-field eddy current are simplified, and the signal processing effec |
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