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Use of Fractional-Quadratic Approximation Invariant of Nonlinear Characteristic of Magnetoelectric Sensor

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dc.contributor.author PENIN, A.
dc.contributor.author SIDORENKO, A.
dc.date.accessioned 2021-11-17T13:10:29Z
dc.date.available 2021-11-17T13:10:29Z
dc.date.issued 2021
dc.identifier.citation PENIN, A., SIDORENKO, A. Use of Fractional-Quadratic Approximation Invariant of Nonlinear Characteristic of Magnetoelectric Sensor. In: ICNMBE-2021: the 5th International Conference on Nanotechnologies and Biomedical Engineering, November 3-5, 2021: Program and abstract book. Chişinău, 2021, p. 107. ISBN 978-9975-72-592-7. en_US
dc.identifier.isbn 978-9975-72-592-7
dc.identifier.uri http://repository.utm.md/handle/5014/18106
dc.description Only Abstract en_US
dc.description.abstract An idea of a sensor of direct magnetic fields using the magnetoelectric effect in a planar ferromagnetic-piezoelectric composite structure is described. It is shown that introduction in the sensor circuit a negative feedback, which contains a current amplifier, a convenient approximation characteristic former, and a compensation coil, results in a widening of the sensor magnetic field region without of linearization of its characteristic. The approximation nonlinear characteristic is close in shape to the original sensor characteristic. Therefore, no deep negative feedback is required and thereby stability is ensured. As this convenient characteristic, a fractional-quadratic relationship is used, for which an invariant is performed between the output voltage value and the magnetic field strength. Such an invariant is a cross ratio (double proportion) for four values or samples of these values. The cross ratio contains the differences of these values and the ratios of these differences. Therefore, additive and multiplicative errors of the output voltage measurements due to the accuracy of the measuring instrument, the noise of the sensor itself and the electronic circuit are mutually reduced. en_US
dc.language.iso en en_US
dc.publisher Universitatea Tehnică a Moldovei en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject magnetoelectric sensor en_US
dc.subject planar ferromagnetic-piezoelectric composite structure en_US
dc.title Use of Fractional-Quadratic Approximation Invariant of Nonlinear Characteristic of Magnetoelectric Sensor en_US
dc.type Article en_US


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