Eddy Current Testing Sensor Design and Comparative Experiment Study Based on Amorphous Alloy

Abstract:

After comparing the principle features of MnZn ferrite material of high permeability and amorphous alloy of FeCuNbSiB, this paper produced an improved solution to sensor performance by applying highly magnetic non-brilliant alloy of iron base to the testing windings of eddy current testing sensors and designed the two-dimensional decomposition testing circuit in terms of sensor testing signal. It ended with a comparison between new sensors and traditional ferrite winding sensors in terms of sensibility and linearity. The experiment results showed that the new eddy current sensors have much better sensibility and linearity compared with their traditional peers.

• Periodical: Applied Mechanics and Materials (Volumes 182-183)
• Pages: 416-421
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.182-183.416
• Online since: June 2012
• Authors: Lin Yu Yang, Run Qiao Yu, Yu Lan Qiu
• Keywords: Amorphous Alloy, Eddy Sensors, Two-Dimensional Decomposition

References

[1] Zhang Jingguo, Fang Renye: Noticeable Amorphous Alloy (Anhui Institute of Electronics, 1998. ).

[2] Dodd C V: Applications of a phase sensitive eddy current instrument, Materials Evaluation, Vol. 22-6 (1984), p.156.