title: Non-contact translation-rotation sensor using combined effects of magnetostriction and piezoelectricity.
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.
authors.affiliation: State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China. btyang@sjtu.edu.cn
authors.forename: Bintang
authors.initials: B
authors.lastname: Yang
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Liu
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.forename: Yudong
authors.initials: Y
authors.lastname: Cao
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Feng
authors.forename: Guang
authors.initials: G
authors.lastname: Meng