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• Yang, B
• Liu, Q
• Zhang, T
• Cao, Y
• Feng, Z
• Meng, G
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• Yang, B
• Liu, Q
• Zhang, T
• Cao, Y
• Feng, Z
• Meng, G
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• Yang, B
• Liu, Q
• Zhang, T
• Cao, Y
• Feng, Z
• Meng, G

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Sensors 2012, 12(10), 13829-13841; doi:10.3390/s121013829

Article

Non-Contact Translation-Rotation Sensor Using Combined Effects of Magnetostriction and Piezoelectricity

Bintang Yang ^1,* , Qingwei Liu ¹ , Ting Zhang ¹ , Yudong Cao ² , Zhiqiang Feng ^3,4  and Guang Meng ¹

¹ State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China ² School of Mechanical Engineering, Purdue University, West Lafayette, IN 47906, USA ³ Université d’Evry-Val d’Essonne, LMEE, Evry, 91260 Juvisy-sur-Orge, France ⁴ School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China

* Author to whom correspondence should be addressed.

Received: 10 August 2012; in revised form: 10 October 2012 / Accepted: 12 October 2012 / Published: 15 October 2012

(This article belongs to the Special Issue Piezoelectric Sensors and Actuators)

Download PDF Full-Text [778 KB, uploaded 15 October 2012 14:47 CEST]

Abstract: Precise displacement sensors are an important topic in precision engineering. At present, this type of sensors typically have a single feature of either translation or rotation measurement. They are also inconvenient to integrate with the host devices. In this report we propose a new kind of sensor that enables both translation and rotation measurement by using the combined effect of magnetostriction and piezoelectricity. As a proof of concept, we experimentally realized a prototype of non-contact translation-rotation precise sensor. In the current research stage, through both theoretical and experimental study, the non-contact displacement sensor is shown to be feasible for measuring both translation and rotation either in coarse or fine measurement. Moreover, owing to its compact, rigid structure and fewer components, it can be easily embedded in host equipment.

Keywords: displacement sensor; translation-rotation measurement; magnetostrictive sensor; piezoelectric effect

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