Research On Technique of Dual-Frequency Eddy-Current Inspection for Continuously Casting Hot Slab

Li Xisheng; Wang Shaochun

doi:10.13374/j.issn1001-053x.1995.04.011

Volume 17 Issue 4

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Article Navigation > Chinese Journal of Engineering > 1995 > 17(4): 361-364

Li Xisheng, Wang Shaochun. Research On Technique of Dual-Frequency Eddy-Current Inspection for Continuously Casting Hot Slab[J]. Chinese Journal of Engineering, 1995, 17(4): 361-364. doi: 10.13374/j.issn1001-053x.1995.04.011

Citation:

Li Xisheng, Wang Shaochun. Research On Technique of Dual-Frequency Eddy-Current Inspection for Continuously Casting Hot Slab[J]. Chinese Journal of Engineering, 1995, 17(4): 361-364. doi: 10.13374/j.issn1001-053x.1995.04.011

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Research On Technique of Dual-Frequency Eddy-Current Inspection for Continuously Casting Hot Slab

doi: 10.13374/j.issn1001-053x.1995.04.011

College of Automation and Information Engineering, USTB, Beijing 100083 PRC

Received Date: 1994-01-14
Available Online: 2021-09-06

Abstract

Abstract

Two-dimension eddy current inspection model is taken for researching the effect of the eddy current transducer structure parameter upon the inspection sensitivity. Dual-frequency eddy current inspection is applied to the inspection of slab surface defects. The results of experiment prove that the change of sensor impedance due to the change of crack depth causes the phase angle of impedance to change.
- transducer,
- continuously casting slabs,
- eddy current test,
- nondestructive test/non-destructive flaw detection