STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT

The design of a gravi-inertial sensor with an elastically suspended sensing mass exhibiting a maximum sensitivity and minimum noise level is being studied. It is conceived that such a sensor contains a torsion mass-spring system, a capacitive pick-off circuit to detect motions of the sensing mass, a...

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Main Authors: I. Z. Gilavdary, S. Mekid, N. N. Riznookaya, A. Abdul Sater
Format: Article
Language:English
Published: Belarusian National Technical University 2016-06-01
Series:Pribory i Metody Izmerenij
Subjects:
Online Access:https://pimi.bntu.by/jour/article/view/236
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author I. Z. Gilavdary
S. Mekid
N. N. Riznookaya
A. Abdul Sater
author_facet I. Z. Gilavdary
S. Mekid
N. N. Riznookaya
A. Abdul Sater
author_sort I. Z. Gilavdary
collection DOAJ
description The design of a gravi-inertial sensor with an elastically suspended sensing mass exhibiting a maximum sensitivity and minimum noise level is being studied. It is conceived that such a sensor contains a torsion mass-spring system, a capacitive pick-off circuit to detect motions of the sensing mass, and a capacitive system to reduce torsion stiffness. Both capacitive systems are combined into a single differential capacitance electrostatic system. The torsion stiffness is reduced by applying an electric field. Problems resulting from the electrostatic asymmetry of the differential system are studied analytically and numerically. The quasi-static and dynamic modes of the free movement of the sensing mass, in the absence of energy loss, are considered. The angular intervals of stability of the sensing mass movement in the electrostatic field, depending on the differential system asymmetry parameter and a frequency of free oscillations «proof mass», are calculated.
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spelling doaj.art-d83919b06c554c15bef5563ebd6adf472023-03-13T09:14:46ZengBelarusian National Technical UniversityPribory i Metody Izmerenij2220-95062414-04732016-06-0171162310.21122/2220-9506-2016-7-1-21-36225STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENTI. Z. Gilavdary0S. Mekid1N. N. Riznookaya2A. Abdul Sater3Белорусский национальный технический университетУниверситет нефти и полезных ископаемых короля Фахда, ДхахранБелорусский национальный технический университетБелорусский национальный технический университетThe design of a gravi-inertial sensor with an elastically suspended sensing mass exhibiting a maximum sensitivity and minimum noise level is being studied. It is conceived that such a sensor contains a torsion mass-spring system, a capacitive pick-off circuit to detect motions of the sensing mass, and a capacitive system to reduce torsion stiffness. Both capacitive systems are combined into a single differential capacitance electrostatic system. The torsion stiffness is reduced by applying an electric field. Problems resulting from the electrostatic asymmetry of the differential system are studied analytically and numerically. The quasi-static and dynamic modes of the free movement of the sensing mass, in the absence of energy loss, are considered. The angular intervals of stability of the sensing mass movement in the electrostatic field, depending on the differential system asymmetry parameter and a frequency of free oscillations «proof mass», are calculated.https://pimi.bntu.by/jour/article/view/236гравиинерциальные датчикиемкостной дифференциальный сенсорэффект залипанияасимметрия дифференциального сенсора
spellingShingle I. Z. Gilavdary
S. Mekid
N. N. Riznookaya
A. Abdul Sater
STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
Pribory i Metody Izmerenij
гравиинерциальные датчики
емкостной дифференциальный сенсор
эффект залипания
асимметрия дифференциального сенсора
title STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
title_full STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
title_fullStr STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
title_full_unstemmed STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
title_short STATIC AND DYNAMIC STABILITY OF GRAVI-INERTIAL SENSORS WITH CAPACITIVE DIFFERENTIAL SYSTEM OF SENSITIVITY ADJUSTMENT
title_sort static and dynamic stability of gravi inertial sensors with capacitive differential system of sensitivity adjustment
topic гравиинерциальные датчики
емкостной дифференциальный сенсор
эффект залипания
асимметрия дифференциального сенсора
url https://pimi.bntu.by/jour/article/view/236
work_keys_str_mv AT izgilavdary staticanddynamicstabilityofgraviinertialsensorswithcapacitivedifferentialsystemofsensitivityadjustment
AT smekid staticanddynamicstabilityofgraviinertialsensorswithcapacitivedifferentialsystemofsensitivityadjustment
AT nnriznookaya staticanddynamicstabilityofgraviinertialsensorswithcapacitivedifferentialsystemofsensitivityadjustment
AT aabdulsater staticanddynamicstabilityofgraviinertialsensorswithcapacitivedifferentialsystemofsensitivityadjustment