Fourier analysis based on spatial symmetry in transducers

Abstract

A novel approach to analyze transducer effects on the basis of their spatial symmetry is presented. To this end, symmetric transducers with multiple modes of operation with different spatial orientations are needed. The response obtained after scanning all modes is written as a Fourier series, of which each coefficient corresponds to a particular symmetry relation. All transducer effects with different symmetry relations can be extracted directly from the spatial frequency spectrum. A 16-contact symmetrical Hall plate is used as an example.<>