2022
DOI: 10.1088/1361-6501/aca0b0
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Angular displacement sensor for gear position detection based on the tunneling magnetoresistance effect

Abstract: In the fields of robotics, machine tools, and spacecraft, the measurement of the gear angular position lay the foundation for the closed-loop position feedback. In this article, an angular displacement sensor based on tunneling magneto-resistance effect is proposed for the precise angle displacement measurement. The developed sensor mainly consists of a tunneling magneto-resistance element, a signal conditioning circuit, a permanent magnet, and some necessary assembly components. The tunneling magnetoresistanc… Show more

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Cited by 2 publications
(2 citation statements)
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“…Non-contact sensors mainly include optical sensors, capacitive sensors [22,23], magnetoresistive sensors [24][25][26] and inductive sensors [27,28]. Optical sensors are categorized as photoelectric encoders [29][30][31] or grating sensors [32][33][34].…”
Section: Of 29mentioning
confidence: 99%
See 1 more Smart Citation
“…Non-contact sensors mainly include optical sensors, capacitive sensors [22,23], magnetoresistive sensors [24][25][26] and inductive sensors [27,28]. Optical sensors are categorized as photoelectric encoders [29][30][31] or grating sensors [32][33][34].…”
Section: Of 29mentioning
confidence: 99%
“…where B and ω represent the magnetic flux density and the angular frequency, respectively; f and a 3 represent the excitation frequency and the volume, respectively; and k yoke = 0.915 and σ represent the correction factors for eddy current loss and the material conductivity, respectively. The penetration depth δ of the eddy current [79] can be expressed via (26):…”
Section: Eddy Current Loss Calculationmentioning
confidence: 99%