Linearized magnetoacoustic sensor of angular displacements

摘要

The design of a quasilinear sensor of angular displacements basednon acoustic resonance in an antiferromagnetic single crystal wasnconsidered. The frequency versus angle dependence of a crystallinenΑ-Fe2O3 acoustic resonator placed in anrotating inhomogeneous bias field was studied experimentally. Anlinearization of this dependence was obtained, respectively, fornfrequency and angular operation ranges equal tonΔf/fmax=14% and ΔΘ=140