螺旋磁场作用下磁致伸缩位移传感器的输出电压模型及实验

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Abstract The output voltage model of magnetostrictive displacement sensor has been founded based on the theory of Wiedemann effect and piezomagnetic effect. By this model, we can calculate the output voltage of sensor under helical magnetic field. It is found that there is a certain linear relationship between the output voltage and helical magnetic field. The calculating output voltage can be achieved to 18.09mV when the excitation magnetic field is equal to the bias magnetic field of 3kA/m and the helical magnetic field is 4.24kA/m. The accuracy and validity of the output voltage model has been validated with the consistence between the experimental data and calculating data. It helps to decide the optimal value of parameters including the excitation magnetic field and bias magnetic field intensity. This model provides a theoretical guidance for reasonable designing of the sensor structure.

Key words： Output voltage model helical magnetic field wiedemann effect magnetostriction

Received: 24 December 2014 Published: 14 September 2015

PACS:

TP212

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	Zhang Luyu
	Wang Bowen
	Weng Ling
	Sun Ying
	Wang Peng

Cite this article:

Zhang Luyu,Wang Bowen,Weng Ling等. The Output Voltage Model of Magnetostrictive Displacement Sensor in Helical Magnetic Fields and Its Experimental Study[J]. Transactions of China Electrotechnical Society, 2015, 30(12): 21-26.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I12/21

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