Position feedback control using magneto impedance sensors on conveyor with superconducting magnetic levitation

Tetsuhiko Iizuka; Naomichi Sakai; Hiroyuki Fujita

doi:10.1016/j.sna.2008.12.014

Position feedback control using magneto impedance sensors on conveyor with superconducting magnetic levitation

Tetsuhiko Iizuka, Naomichi Sakai, Hiroyuki Fujita

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The driving characteristic of a conveyor with superconducting magnetic levitation is reported. A superconductor (Gd-Ba-Cu-O, Sintered plate) is used to levitate a slider on the surface of a superconductor. In this paper, magneto impedance sensors are used to detect the position of a levitated slider whose size is 7.2 mm square and 2 mm in thickness. This magneto impedance sensor is commercially available and works based on a linear relation between the external magnetic field and the output voltage. This paper describes the results of (1) two-dimensional stepping actuation to arbitrary positions with the step size of 1.2 mm, (2) the maximum conveyance speed of 104 mm/s and (3) successful position feedback control.

Original language	English
Pages (from-to)	110-115
Number of pages	6
Journal	Sensors and Actuators, A: Physical
Volume	150
Issue number	1
DOIs	https://doi.org/10.1016/j.sna.2008.12.014
Publication status	Published - 2009 Mar 16
Externally published	Yes

Keywords

Conveyance
Magnetic levitation
Magneto impedance sensor
Superconductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

Access to Document

10.1016/j.sna.2008.12.014

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