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Sensors 2018, 18(1), 245; https://doi.org/10.3390/s18010245

Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback

1
Moscow Institute of Physics and Technology, 117303 Moscow, Russia
2
R-Sensors LLC, 141700 Moscow, Russia
*
Author to whom correspondence should be addressed.
Received: 13 November 2017 / Revised: 13 December 2017 / Accepted: 28 December 2017 / Published: 16 January 2018
(This article belongs to the Special Issue Inertial Sensors for Positioning and Navigation)
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Abstract

A high-precision angular accelerometer based on molecular–electronic transfer (MET) technology with a high dynamic range and a low level of self-noise has been developed. Its difference from the analogues is in the use of liquid (electrolyte) as the inertial mass and the use of negative feedback based on the magnetohydrodynamic effect. This article reports on the development of the angular molecular–electronic accelerometer with a magnetohydrodynamic cell for the creation of negative feedback, and the optimization of electronics for the creation of a feedback signal. The main characteristics of the angular accelerometer, such as amplitude–frequency characteristics, self-noise and Allan variance were experimentally measured. The obtained output parameters were compared to its analogues and it showed perspectives for further development in this field. View Full-Text
Keywords: angular accelerometer; rotational sensor; mechanical sensors; molecular–electronic technology; negative feedback; magnetohydrodynamic effect angular accelerometer; rotational sensor; mechanical sensors; molecular–electronic technology; negative feedback; magnetohydrodynamic effect
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Egorov, E.; Agafonov, V.; Avdyukhina, S.; Borisov, S. Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback. Sensors 2018, 18, 245.

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