Investigation on a new inducer of pulsed eddy current thermography
Source abstract
Abstract
In this paper, a new inducer of pulsed eddy current thermography (PECT) is presented. The use of the inducer can help avoid the problem of blocking the infrared (IR) camera’s view in eddy current thermography technique. The inducer can also provide even heating of the test specimen. This paper is concerned with the temperature distribution law around the crack on a specimen when utilizing the new inducer. Firstly, relative mathematical models are provided. In the following section, eddy current distribution and temperature distribution around the crack are studied using the numerical simulation method. The best separation distance between the inducer and the specimen is also determined. Then, results of temperature distribution around the crack stimulated by the inducer are gained by experiments. Effect of current value on temperature rise is studied as well in the experiments. Based on temperature data, temperature features of the crack are discussed.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Thermography and Photoacoustic Techniques · Non-Destructive Testing Techniques · Force Microscopy Techniques and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
China University of Petroleum-Beijing College of Mechanical and Transportation Engineering, , Beijing 102249, China
Funding
Science Foundation of China University of Petroleum,Beijing · National Natural Science Foundation of China · PetroChina Innovation Foundation
References (18)
Show source-provided references
1. A review of optical NDT technologies10.3390/s110807773 ↗
2. A review of NDT techniques for wind turbines10.1784/insi.2007.49.3.137 ↗
3. Pulsed thermography for non-destructive evaluation and damage growth monitoring of bonded repairs10.1016/j.compstruct.2008.02.010 ↗
4. IR thermography for interface analysis of FRP laminates externally bonded to RC beams10.1617/s11527-008-9364-z ↗
5. Mechanisms and models for crack detection with induction thermography10.1063/1.2902698 ↗
6. The feasibility of flash thermography for the examination and conservation of works of art10.1179/sic.2010.55.2.107 ↗
7. Sonic infrared imaging of fatigue cracks10.1016/S0142-1123(01)00151-7 ↗
8. Detection of surface cracks, pits, and scratches in highly reflective and low-emissive materials by using a laser beam trapping and infrared imaging technique10.1117/12.665735 ↗
9. Thermography pattern analysis and separation10.1063/1.4884644 ↗
10. Quantitative evaluation of angular defects by pulsed eddy current thermography10.1016/j.ndteint.2010.05.010 ↗
11. Parameters influence in steel corrosion evaluation using PEC thermography
12. Thermophotonic radar imaging: An emissivity-normalized modality with advantages over phase lock-in thermography10.1063/1.3582243 ↗
13. A novel signal processing technique for eddy-current testing of steam generator tubes10.1109/20.668059 ↗
14. Mechanisms and models for crack detection with induction thermography10.1063/1.1916868 ↗
15. Thermo-inductive crack detection10.1080/10589750701448225 ↗
16. Thin-skin electromagnetic fields around surface-breaking cracks in metals10.1063/1.341384 ↗
17. Numerical simulation of a U-Shaped ACFM inducer10.2320/matertrans.M2015005 ↗
18. 2013