Non-contact detection of magnetoelastic bilayer position sensors

Jurgen Kosel*, H. Pfützner, L. Mehnen, E. Kaniusas, T. Meydan, M. Vázquez, M. Rohn, A. M. Merlo, B. Marquardt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The paper concerns the contactless position sensing by the help of magnetoelastic bilayers, a novel multifunctional mechanic sensor element. The bilayer is sensitive to bending or temperature change both yielding a change of its magnetic permeability as a basis for signal detection. In this work, the bilayer is fixed at one end while the other end is displaced. The position signal is evaluated from the voltage signal of a pick-up coil placed in a distance to the bilayer. The possibility to improve the procedure by the help of electric resonance effects is shown. A detection range of 30 mm has effectively been established.

Original languageEnglish (US)
Pages (from-to)349-353
Number of pages5
JournalSensors and Actuators, A: Physical
Volume123-124
DOIs
StatePublished - Sep 23 2005

Keywords

  • Magnetostrictive material
  • Multifunctional sensors
  • Non-contact signal detection

ASJC Scopus subject areas

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

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