Recent development of alternating current field measurement combine with new technology /

Recent development of alternating current field measurement combine with new technology /

This open access book can be divided into three parts. In part 1, three articles are employed to introduce the RACFM technology. In part 2, two articles are introduced to explain the Multifrequency ACFM. In part 3, three articles are introduced to explain the visualization research in ACFM. With the...

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Bibliographic Details
Main Authors: Yuan, Xin'an (Author), Li, Wei (Author), Zhao, Jianming (Author), Yin, Xiaokang (Author), Li, Xiao (Author), Zhao, Jianchao (Author)
Format: Electronic eBook
Language:English
Published: Singapore : Springer, [2024]
Subjects:
Electric currents, Alternating > Measurement.
Online Access:CONNECT
Table of Contents:
  • Intro
  • Preface
  • Contents
  • High Sensitivity Rotating Alternating Current Field Measurement for Arbitrary-Angle Underwater Cracks
  • 1 Introduction
  • 2 Induced Rotating Alternating Current Field
  • 2.1 RACFM Theoretical Model
  • 2.2 FEM Modeling and Analyzing
  • 3 RACFM System for Arbitrary-Angle Cracks Measurement
  • 3.1 RACFM System
  • 3.2 RACFM Probe
  • 3.3 RACFM Waterproof Shell
  • 4 RACFM System Testing and Discussing
  • 4.1 Experiment System
  • 4.2 Discussion
  • 5 Conclusion
  • References
  • Detection of Cracks in Metallic Objects by Arbitrary Scanning Direction Using a Double U-Shaped Orthogonal ACFM Probe
  • 1 Introduction
  • 2 FEM Model of Double U-Shaped Orthogonal ACFM Probe
  • 3 Cracks Detection Experiments
  • 4 Conclusion
  • References
  • A Novel Fatigue Crack Angle Quantitative Monitoring Method Based on Rotating Alternating Current Field Measurement
  • 1 Introduction
  • 2 Theoretical Model
  • 3 Finite Element Analysis
  • 3.1 Model Set Up
  • 3.2 Characteristic Signal Analysis of Cracks with Different Angles
  • 3.3 Characteristic Signal Analysis of Cracks with Different Lengths and Depths
  • 4 Experimental Setup and Result
  • 4.1 Probe and System Setup
  • 4.2 Crack Length Monitoring
  • 4.3 Crack Depth Monitoring
  • 4.4 Modification of the Measured Angle of the Crack
  • 5 Conclusions and Further Work
  • References
  • Inspection of Both Inner and Outer Cracks in Aluminum Tubes Using Double Frequency Circumferential Current Field Testing Method
  • 1 Introduction
  • 2 Finite Element Method Model
  • 2.1 Simulation Model
  • 2.2 High Frequency Excitation Signal
  • 2.3 Low Frequency Excitation Signal
  • 3 Testing System
  • 3.1 Probe with Sensor Arrays
  • 3.2 Testing System
  • 4 Inspection of Inner and Outer Cracks
  • 4.1 Specimen
  • 4.2 Inspection of Different Depth Cracks
  • 4.3 Inspection of Different Length Cracks
  • 5 Conclusions and Further Work
  • References
  • Novel Phase Reversal Feature for Inspection of Cracks Using Multi-frequency Alternating Current Field Measurement Technique
  • 1 Introduction
  • 2 Methodology
  • 3 Multi-frequency ACFM Testing System
  • 4 Experiment
  • 5 Conclusion
  • References
  • Visual Reconstruction of Irregular Crack in Austenitic Stainless Steel Based on ACFM Technique
  • 1 Introduction
  • 2 An Irregular Crack Simulation Model
  • 2.1 Simulation Model
  • 2.2 Simulation Analysis of Electromagnetic Field
  • 3 Visualization Reconstruction Method
  • 3.1 Gradient Field Algorithm
  • 3.2 Simulation Results Visualization Refactoring
  • 4 Experimental Verification
  • 4.1 Test System Construction
  • 4.2 Experimental Test
  • 4.3 Reconstruction Accuracy Evaluation
  • 5 Conclusions
  • References

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