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Sensors 2015, 15(11), 29378-29392; doi:10.3390/s151129378

Molecular Electronic Angular Motion Transducer Broad Band Self-Noise

1
Center for Molecular Electronics, Moscow Institute of Physics and Technology, Moscow 117303, Russia
2
NordLab LLC, Dolgoprudny, Moscow Region 141700, Russia
3
R-sensors LLC, Dolgoprudny, Moscow Region 141700, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 17 September 2015 / Revised: 10 November 2015 / Accepted: 17 November 2015 / Published: 20 November 2015
(This article belongs to the Section Physical Sensors)
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Abstract

Modern molecular electronic transfer (MET) angular motion sensors combine high technical characteristics with low cost. Self-noise is one of the key characteristics which determine applications for MET sensors. However, until the present there has not been a model describing the sensor noise in the complete operating frequency range. The present work reports the results of an experimental study of the self-noise level of such sensors in the frequency range of 0.01–200 Hz. Based on the experimental data, a theoretical model is developed. According to the model, self-noise is conditioned by thermal hydrodynamic fluctuations of the operating fluid flow in the frequency range of 0.01–2 Hz. At the frequency range of 2–100 Hz, the noise power spectral density has a specific inversely proportional dependence of the power spectral density on the frequency that could be attributed to convective processes. In the high frequency range of 100–200 Hz, the noise is conditioned by the voltage noise of the electronics module input stage operational amplifiers and is heavily reliant to the sensor electrical impedance. The presented results allow a deeper understanding of the molecular electronic sensor noise nature to suggest the ways to reduce it. View Full-Text
Keywords: molecular electronics; sensor; transducer; angular motion; noise; self-noise; rate; acceleration molecular electronics; sensor; transducer; angular motion; noise; self-noise; rate; acceleration
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zaitsev, D.; Agafonov, V.; Egorov, E.; Antonov, A.; Shabalina, A. Molecular Electronic Angular Motion Transducer Broad Band Self-Noise. Sensors 2015, 15, 29378-29392.

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