Results 241 to 250 of about 79,864 (297)
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Non-Hermitian ring laser gyroscopes with enhanced Sagnac sensitivity
Nature, 2019Gyroscopes are essential to many diverse applications associated with navigation, positioning and inertial sensing1. In general, most optical gyroscopes rely on the Sagnac effect—a relativistically induced phase shift that scales linearly with the ...
M. P. Hokmabadi +3 more
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Output Feedback Control of Micromechanical Gyroscopes Using Neural Networks and Disturbance Observer
IEEE Transactions on Neural Networks and Learning Systems, 2020This article addresses the output feedback control of micromechanical (MEMS) gyroscopes using neural networks (NNs) and disturbance observer (DOB). For the unmeasured system states, the state observer and the high gain observer are constructed.
Rui Zhang, B. Xu, P. Shi
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Terminal Sliding Mode Control of MEMS Gyroscopes With Finite-Time Learning
IEEE Transactions on Neural Networks and Learning Systems, 2020This article proposes a neural terminal sliding mode controller (TSMC) with finite-time (FT) convergence for the uncertain MEMS gyroscope dynamics. To address the uncertainty, considering the periodic tracking property of MEMS gyroscopes, a composite ...
Yuyan Guo, B. Xu, Rui Zhang
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Three-axis atomic magnetometer for nuclear magnetic resonance gyroscopes
, 2020A three-axis atomic magnetometer for nuclear magnetic resonance gyroscopes (NMRGs) is demonstrated. To satisfy the miniaturization demand of NMRGs, a magnetic-resonance-based atomic magnetometer is used to detect the longitudinal magnetic field ...
X. Qiu +7 more
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IFAC Proceedings Volumes, 1979
Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
R.W. Shorthill, G.J. Morris, L.D. Weaver
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Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
R.W. Shorthill, G.J. Morris, L.D. Weaver
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Journal of Applied Mechanics, 1961
Consideration is given to the nonlinear terms in the differential equations governing the motion of gyroscopes under constant acceleration and a “correcting” torque. Unstable oscillations are noted when a correcting torque is present and the nonlinear terms are included.
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Consideration is given to the nonlinear terms in the differential equations governing the motion of gyroscopes under constant acceleration and a “correcting” torque. Unstable oscillations are noted when a correcting torque is present and the nonlinear terms are included.
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2017 International Conference on Engineering, Technology and Innovation (ICE/ITMC), 2017
Actually MEMS is a widely spread and well known term - Micro-Electro-Mechanical Systems. MEMS gyroscope is well known almost twenty years. For the time being NEMS is still a new term and it is meant Nano-Electro-Mechanical Systems. It is discussed NEMS gyroscope as a new angular rate sensor. It is suggested to use recently invented narrowest electrical
Avrutov, V.V. +6 more
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Actually MEMS is a widely spread and well known term - Micro-Electro-Mechanical Systems. MEMS gyroscope is well known almost twenty years. For the time being NEMS is still a new term and it is meant Nano-Electro-Mechanical Systems. It is discussed NEMS gyroscope as a new angular rate sensor. It is suggested to use recently invented narrowest electrical
Avrutov, V.V. +6 more
openaire +1 more source
Quasiinvariant gyroscopic systems
Soviet Applied Mechanics, 1982Let a conservative gyroscopic system have a large coefficient H in the \(L_ 1\) (linear) term of its Lagrangian. Then the \(L_ 2\) and \(L_ 0\) terms are individually time-invariant to within the order \(\epsilon =1/H\). Gyroscopic forces prevent energy conversion between kinetic and potential forms.
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A new type-3 fuzzy predictive controller for MEMS gyroscopes
Nonlinear dynamics, 2021R. H. Vafaie +2 more
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A review on vibrating beam-based micro/nano-gyroscopes
Microsystem Technologies, 2021K. Larkin +3 more
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