2D rotary sensor based on magnetic composite of microrods.

Autor: Karami, Amir Hossein, Karami Horestani, Fatemeh, Kolahdouz, Mohammadreza, Horestani, Ali K., Martín, Ferran
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Zdroj: Journal of Materials Science: Materials in Electronics; Jan2020, Vol. 31 Issue 1, p167-174, 8p
Abstrakt: This study presents a two-dimensional rotary sensor employing the impact of an externally exposed magnetic field on the inductance of coils with cores composed of suspended magnetic microrods. A mixture of polydimethylsiloxane and nickel microparticles in the average size of about 8–20 µm was utilized as the inductor coil. Interestingly, the variations in the coils' inductance were effectively used to sense the rotations in both azimuth and elevation. A readout circuit was designed to convert the coils' inductance to voltage and demonstrated a conversion coefficient of 8.6 mV/° in azimuth and 19.1 mV/° in elevation. Due to the inexpensive utilized material and relatively simple fabrication process, the proposed rotary sensor can be a great candidate for this application. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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