Research on Key Technology of Fuel Rod Oxide Film Thickness Measurement System

Xiao Xiang; Gao Sanjie; Gao Guangyong; Wen Junhao; Jiang Weiyu

doi:10.13832/j.jnpe.2023.06.0237

Volume 44 Issue 6

Dec. 2023

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Xiao Xiang, Gao Sanjie, Gao Guangyong, Wen Junhao, Jiang Weiyu. Research on Key Technology of Fuel Rod Oxide Film Thickness Measurement System[J]. Nuclear Power Engineering, 2023, 44(6): 237-241. doi: 10.13832/j.jnpe.2023.06.0237

Citation:

Xiao Xiang, Gao Sanjie, Gao Guangyong, Wen Junhao, Jiang Weiyu. Research on Key Technology of Fuel Rod Oxide Film Thickness Measurement System[J]. Nuclear Power Engineering, 2023, 44(6): 237-241. doi: 10.13832/j.jnpe.2023.06.0237

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Research on Key Technology of Fuel Rod Oxide Film Thickness Measurement System

doi: 10.13832/j.jnpe.2023.06.0237

1.
SWS Hemodialysis Care Co., Ltd., Chongqing, 401123, China
2.
Nuclear Power Institute of China, Chengdu, 610213, China
3.
College of Computer Science, Chongqing University, Chongqing, 400044, China

Received Date: 2022-12-30
Rev Recd Date: 2023-09-25
Publish Date: 2023-12-15

Abstract

Abstract

During the long-term service of nuclear reactor fuel assembly, zirconium alloy reacts with high-temperature water to form an oxide film. The measurement precision needs to reach ± 5μm due to the thin film. The high requirement of measurement precision brings difficulties to the development of the oxide film thickness measurement system. Therefore, based on the eddy current lift-off effect, a fuel rod oxide film thickness measurement system is developed in this paper. The key technology in the system is discussed, and the electromagnetic field of eddy current lift-off effect is simulated. The test results show that the measurement system has high precision, stability and reliability, and can measure the thickness of oxide film of in-service fuel rods.
- Eddy current,
- Oxide film,
- Measurement system

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References(15)

References

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