Magnetic circuit design and analysis of giant magnetostrictive force sensor based on the Villari effect

Chuanli Wang; Rui Shi; Caofeng Yu; Yu Wang; Zhuo Chen

doi:10.1117/12.2611015

19 November 2021 Magnetic circuit design and analysis of giant magnetostrictive force sensor based on the Villari effect

Chuanli Wang, Rui Shi, Caofeng Yu, Yu Wang, Zhuo Chen

Author Affiliations +

Proceedings Volume 12059, Tenth International Symposium on Precision Mechanical Measurements; 1205902 (2021) https://doi.org/10.1117/12.2611015
Event: Tenth International Symposium on Precision Mechanical Measurements, 2021, Qingdao, China

Abstract

Based on the Villari effect of giant magnetostrictive material, a new giant magnetostrictive force sensor is proposed. The magnetic flux is measured by the Hall element in the structure, to realize the measurement of external load. Firstly, according to the structure and working principle of the giant magnetostrictive force sensor, its closed magnetic circuit is analyzed. Secondly, based on the basic theory of electromagnetic field, the magnetic circuit of the giant magnetostrictive force sensor is calculated by the finite element method. Finally, the specific factors affecting the output characteristics of the sensor are deeply discussed. The results show that the closed magnetic circuit can effectively avoid magnetic flux leakage, and it is reasonable to use the hall principle and Villari effect to measure the external load, which provides a technical way for the further research of giant magnetostrictive force sensors.

Citation Download Citation

Chuanli Wang, Rui Shi, Caofeng Yu, Yu Wang, and Zhuo Chen "Magnetic circuit design and analysis of giant magnetostrictive force sensor based on the Villari effect", Proc. SPIE 12059, Tenth International Symposium on Precision Mechanical Measurements, 1205902 (19 November 2021); https://doi.org/10.1117/12.2611015

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