Recent Development of Alternating Current Field Measurement Combine with New Technology.

• Author: Yuan, Xin'an.
• TeilnehmendeR: Li, Wei.; Zhao, Jianming.; Yin, Xiaokang.; Li, Xiao.; Zhao, Jianchao.
• Place / Publishing House: Singapore : : Springer Singapore Pte. Limited,, 2024.; ©2024.
• Year of Publication: 2024
• Edition: 1st ed.
• Language: English
• Physical Description: 1 online resource (152 pages)

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
• Visual ACFM System Modeling and Optimization for Accurate Measurement of Underwater Cracks
• 1 Introduction
• 2 Underwater VACFM
• 3 Analysis and Optimization for Probe Parameters
• 3.1 Model Development in ANSYS
• 3.2 Excitation Currents
• 3.3 Fix Structure Lift-Off
• 3.4 Probe Structure
• 4 System Performance Testing
• 4.1 Experimental System
• 4.2 Accurate Measurements
• 4.3 Results and Discussion
• 5 Design Summary and Conclusion
• References
• Research on High-Precision Evaluation of Crack Dimensions and Profiles Methods for Underwater Structure Based on ACFM Technique
• 1 Introduction
• 2 Marine Environment ACFM Simulation Model
• 3 Two-Step Interpolation Algorithm
• 4 Establishment of the Experimental System
• 5 Crack Evaluation Test
• 5.1 Crack Size Evaluation
• 5.2 Crack Profile Evaluation
• 6 Conclusion
• References.