Planar magnetoelectric voltage transformer based on a composite ferromagnet-piezoelectric heterostructure
| Autor: | Dmitry V. Saveliev, D. V. Chashin, Y. K. Fetisov, Leonid Y. Fetisov |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Magnetoelectric effect 02 engineering and technology 01 natural sciences law.invention Condensed Matter::Materials Science Planar law 0103 physical sciences Electrical and Electronic Engineering Instrumentation Transformer (machine learning model) 010302 applied physics business.industry Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Piezoelectricity Surfaces Coatings and Films Electronic Optical and Magnetic Materials Magnetic field Capacitor Optoelectronics 0210 nano-technology business Acoustic resonance Voltage |
| Zdroj: | Sensors and Actuators A: Physical. 328:112773 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/j.sna.2021.112773 |
| Popis: | A planar magnetoelectric voltage transformer based on a layered composite structure containing layers of amorphous ferromagnet and piezoelectric lead zirconate-titanate has been fabricated and investigated. The transformer uses a coilless system (the so-called "magnetic capacitor") to excite the direct magnetoelectric effect at the frequency of the acoustic resonance of the structure, which made it possible to significantly simplify the design. The voltage transformation ratio of the magnetoelectric transformer, in contrast to the known electromagnetic or piezoelectric transformers, can be tuned by an external magnetic field from zero to 13.2 with an increase in the field from zero to 30 Oe. The operating range of the output voltage of the transformer is 0−400 mV, and the output power reaches 9 μW at optimal load resistance. The technique for calculating the characteristics of the transformer is described. |
| Databáze: | OpenAIRE |
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