A2.1 - Digital Signal Processing for Eddy Current Parameter Identification in Measurement Applications

Event
SMSI 2025
2025-05-06 - 2025-05-08
Nürnberg
Band
Lectures
Chapter
A2 - Magnetic and inductive Measurement
Author(s)
S. Hütter, G. Mook, T. Halle - Otto-von-Guericke Universität, Magdeburg (Germany)
Pages
33 - 34
DOI
10.5162/SMSI2025/A2.1
ISBN
978-3-910600-06-5
Price
free

Abstract

This paper presents a simplified eddy-current testing system design that minimizes hardware complexity by leveraging digital signal processing (DSP). An architecture for the digital-to-analog and analog-to-digital converters is shown that ensures precise temporal correlation between transmitted and received signals. By converting these signals to in-phase and quadrature (IQ) format, additional filtering, spectral analysis and parameter tuning is possible. This design has been applied in both educational and spec-troscopic measurement contexts, demonstrating the efficiency of its implementation.

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