Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback
<p>Molecular electronic transducer. 1: dielectric pipe; 2: electrolyte; 3: porous ceramic spacers; 4: anodes; 5: cathodes; a: external mechanical acceleration; v<sub>out</sub>: output signal.</p> "> Figure 2
<p>Molecular–electronic angular motion sensor design: A: anodes; K: cathodes of the sensor electrode transducer.</p> "> Figure 3
<p>Molecular-electronic angular accelerometer design: 1: toroidal channel; 2: MHD cells; 3: transducer electrode cell; 4: flat MHD electrodes; 5: permanent magnets.</p> "> Figure 4
<p>Electronic circuit for forming the voltage between the electrodes (<b>B</b>) and the electronic circuit for forming output signal (<b>A</b>).</p> "> Figure 5
<p>Electronic circuit for the current formation in the MHD cell.</p> "> Figure 6
<p>Photo of the molecular–electronic angular accelerometer with negative MHD feedback (without electronic plate).</p> "> Figure 7
<p>I-V characteristics of the MHD cells.</p> "> Figure 8
<p>Amplitude-frequency characteristic from the first stage of amplification, obtained on a calibration bench (blue curve) and using MHD cells (red curve).</p> "> Figure 9
<p>The amplitude frequency response for molecular–electronic angular accelerometer with negative MHD feedback.</p> "> Figure 10
<p>Power spectral density of molecular electronic angular accelerometer with negative MHD feedback in units of input angular acceleration in decibels relating to 1 rad/s<sup>2</sup>√Hz.</p> "> Figure 11
<p>Allan variance for molecular–electronic angular accelerometer with negative MHD feedback.</p> "> Figure A1
<p>Signal of molecular–electronic angular accelerometer with negative MHD feedback for different rotation parameters.</p> "> Figure A2
<p>Accelerometer-integrated signal.</p> ">
Abstract
:1. Introduction
2. Method of Forming Feedback
3. Experimental Output Characteristics
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
Appendix A
- An increase in speed from 0 to 5 deg/s in a clockwise direction with an acceleration of 0.1 deg/s2, rotation at a rate of 5 deg/s, subsequent deceleration with a negative acceleration of −0.1 deg/s2.
- An increase in speed from 0 to 5 deg/s counterclockwise with an acceleration of 0.1 deg/s2, rotation at a rate of 5 deg/s, subsequent deceleration with a negative acceleration of −0.1 deg/s2.
- An increase in speed from 0 to 5 deg/s in a clockwise direction with an acceleration of 0.5 deg/s2, rotation at a rate of 5 deg/s, followed by a deceleration with a negative acceleration of −0.5 deg/s2.
- An increase in speed from 0 to 5 deg/s counterclockwise with an acceleration of 0.5 deg/s2, rotation at a rate of 5 deg/s, subsequent deceleration with a negative acceleration of −0.5 deg/s2.
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Characteristic | MET Angular Accelerometer | ASB, Jewell Instruments | SR-100FR, Columbia Research Laboratories |
---|---|---|---|
Scale Factor (V/rad/s2) | 8 | 0.025 | 1–50 |
Self-noise (rad/s2) | 3.6 × 10−5 | 5 × 10−3 | 2 × 10−3 |
Bias (rad/sec2) | 7 × 10−7 | - | - |
Bandwidth (−3db), Hz | 10 (100 as optional) | 70 | 10 |
Input Range, (rad/sec2) | ±1 | ±200 | ±5 |
Input Current, (mA, Max.) | 12 | 10 | 20 |
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Egorov, E.; Agafonov, V.; Avdyukhina, S.; Borisov, S. Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback. Sensors 2018, 18, 245. https://doi.org/10.3390/s18010245
Egorov E, Agafonov V, Avdyukhina S, Borisov S. Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback. Sensors. 2018; 18(1):245. https://doi.org/10.3390/s18010245
Chicago/Turabian StyleEgorov, Egor, Vadim Agafonov, Svetlana Avdyukhina, and Sergey Borisov. 2018. "Angular Molecular–Electronic Sensor with Negative Magnetohydrodynamic Feedback" Sensors 18, no. 1: 245. https://doi.org/10.3390/s18010245