Linearized magnetoacoustic sensor of angular displacements

Authors
Pernod, P Preobrazhensky, V Dequand, S
Citation
P. Pernod et al., Linearized magnetoacoustic sensor of angular displacements, IEEE ULTRAS, 46(1), 1999, pp. 239-241
Citations number
12
Categorie Soggetti
Optics & Acoustics
Journal title
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
ISSN journal
08853010 → ACNP
Volume
46
Issue
1
Year of publication
1999
Pages
239 - 241
Database
ISI
SICI code
0885-3010(199901)46:1<239:LMSOAD>2.0.ZU;2-Y
Abstract
The design of a quasilinear sensor of angular displacements based on acoust ic resonance in an antiferromagnetic single crystal was considered. The fre quency versus angle dependence of a crystalline (alpha-Fe2O3 acoustic reson ator placed in a rotating inhomogeneous bias field was studied experimental ly. A linearization of this dependence was obtained, respectively, for freq uency and angular operation ranges equal to Delta f/f(max) = 14% and Delta theta = 140 degrees.