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Proceedings Paper

Theoretical model and optimization of magnetic stress sensor for measuring steel cable stress
Author(s): Lin Liu; Weimin Chen; Peng Zhang; Shunren Hu
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Paper Abstract

Magnetic stress sensor has been considered as the most suitable sensor for measurement of steel cable stress because of its simple structure, low cost and long service life. However, the theoretical foundation for sensor design has never been reported, so it is necessary to study the theory and method of sensor design. Following the magneto-mechanical principle, a theoretical model of magnetic stress sensor is developed. The model indicated that the output of sensor is the function of structural parameters, excitation parameters and stress applied, respectively. A sensor is designed for an engineering steel cable and experiments are done to verify the optimization. Experimental results are in good agreement with the theoretical predictions. Compared to the previous results, the sensor sensitivity is improved by about 4 times, which shows that this model is rational and feasible and the theoretical foundation for optimization is truly of great importance for optimizing the characteristic properties of a sensor.

Paper Details

Date Published: 28 December 2010
PDF: 9 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75442S (28 December 2010); doi: 10.1117/12.885893
Show Author Affiliations
Lin Liu, Chongqing Univ. (China)
Weimin Chen, Chongqing Univ. (China)
Peng Zhang, Chongqing Univ. (China)
Shunren Hu, Chongqing Univ. (China)


Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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