I.N. DAVRISHOVA, V.А. NEYMATOV
NORMALIZATION OF DYNAMIC CHARACTERISTICS OF PIEZOELECTRIC ANGLE TRANSDUCER


The authors deal with the problems related to the determination of the transfer function (TF) of the piezoelectric sensors (PES) with a differential connection of piezoelectric transducers (PET), with the normalization of the coefficients of the characteristic equation to ensure a stable velocity in a wide range of measurement in the low-frequency region, with adjustment to the technical optimum of second-order filter parameters, ensuring the separation of the measuring range of the unstable area around the resonant frequency and the mathematical compensation of TF zeros.
It has been found that, within the specific conditions, using the geometric dimensions of the disc-shaped PET, TF with normalized coefficients can be obtained for PESs and the measuring range with stable dynamic response can be adjusted.

Keywords: piezoelectric sensors, differential connection, angle transducer, dynamic sensitivity, normalizing factors, technical optimum, transfer function
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