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Related Experiment Video

Updated: Feb 8, 2026

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Published on: January 16, 2020

A Temperature Drift Compensation Method for Pulsed Eddy Current Technology.

Biting Lei¹, Pengxing Yi², Yahui Li³

¹School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan 430074, China. bitinglei@hust.edu.cn.

Sensors (Basel, Switzerland)

|June 20, 2018

Summary

This summary is machine-generated.

Temperature changes significantly affect pulsed eddy current (PEC) testing precision. This study introduces an effective temperature compensation method to improve the reliability of PEC defect detection.

Keywords:

pulsed eddy current (PEC)temperature compensation temperature drift

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Area of Science:

Materials Science
Non-Destructive Testing
Engineering Physics

Background:

Pulsed eddy current (PEC) is a key non-contact technology for detecting material defects.
Temperature variations, specifically the drift of the exciting coil, negatively impact the accuracy of PEC testing.
Reliable defect detection using PEC requires addressing the influence of temperature fluctuations.

Purpose of the Study:

To investigate the theoretical and experimental effects of temperature drift on PEC testing.
To develop and validate a temperature compensation method for PEC systems.
To enhance the precision and reliability of non-destructive testing using PEC technology.

Main Methods:

Theoretical analysis of temperature drift effects on PEC signals.
Experimental investigation of temperature's impact on peak-to-peak output values.
Development and application of a novel temperature compensation algorithm.

Main Results:

Temperature drift was confirmed to have a significant negative impact on PEC testing accuracy.
The proposed temperature compensation method effectively mitigated the detrimental effects of temperature variations.
The precision of PEC defect detection was demonstrably improved through temperature compensation.

Conclusions:

Temperature compensation is crucial for maintaining the accuracy of PEC non-destructive testing.
The developed method offers a practical solution for reducing temperature-induced errors in PEC applications.
This research enhances the robustness and applicability of PEC technology in various industrial settings.