Contactless position sensor using magnetic saturation

This paper describes different structures for the realization of a contactless position sensor when restricting to a magnet as the target and an inductance as the sensing element. The principle of measurement is the local saturation of an inductance core by a magnet. A sensor model is explained usin...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. A, Physical Physical, 2003-09, Vol.106 (1-3), p.149-154
Main Authors: Legrand, Bertrand, Dordet, Yves, Voyant, Jean-Yves, Yonnet, Jean-Paul
Format: Article
Language:English
Subjects:
Exact sciences and technology
General equipment and techniques
Impedance measurements
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Permanent magnet
Physics
Position sensor
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper describes different structures for the realization of a contactless position sensor when restricting to a magnet as the target and an inductance as the sensing element. The principle of measurement is the local saturation of an inductance core by a magnet. A sensor model is explained using Maxwell equations on the magnetic circuit. Some response curves are also presented in order to validate the model. The experimental results obtained on a prototype of linear position sensor are given.
ISSN:0924-4247
1873-3069
DOI:10.1016/S0924-4247(03)00154-7