The Influence of Nonlinear High-Intensity Dynamic Processes on the Standing Wave Precession of a Non-Ideal Hemispherical Resonator [PDF]
SensorsThe properties of small size, low noise, high performance and no wear-out have made the hemispherical resonator gyroscope a good choice for high-value space missions. To enhance the precision of the hemispherical resonator gyroscope for use in tasks with
Wei Cheng +5 more
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Standing Wave Binding of Hemispherical Resonator Containing First–Third Harmonics of Mass Imperfection under Linear Vibration Excitation [PDF]
Sensors, 2020 Due to complicated processing technology, the mass distribution of a hemispherical resonator made of fused silica is not uniform, which can affect the azimuth of the standing wave of a resonator under the linear vibration excitation.
Yan Huo +3 more
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Design and Verification of a Digital Controller for a 2-Piece Hemispherical Resonator Gyroscope [PDF]
Sensors, 2016 A Hemispherical Resonator Gyro (HRG) is the Coriolis Vibratory Gyro (CVG) that measures rotation angle or angular velocity using Coriolis force acting the vibrating mass.
Jungshin Lee +2 more
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Comparative Noise Analysis of Readout Circuit in Hemispherical Resonator Gyroscope [PDF]
MicromachinesIn high-precision Hemispherical Resonator Gyroscope (HRG) control systems, readout circuit noise critically determines resonator displacement detection precision.
Zhihao Yu +5 more
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Identification and Compensation Method of Unbalanced Error in Driving Chain for Rate-Integrating Hemispherical Resonator Gyro [PDF]
SensorsThe accuracy of the signal within a driving chain for the rate-integrating hemispherical resonator gyro (RI-HRG) plays a crucial role in the overall performance of the gyro.
Yiwei Sun +3 more
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Low-Damage Trimming of Micro Hemispherical Resonators by Chemical Etching [PDF]
MicromachinesTo enhance the performance of micro-hemispherical gyroscopes, achieving low-damage and high-surface-quality trimming is essential. This enables greater stability and reliability for the gyroscopes.
Zhongzhe Zhou +6 more
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Manufacture of Hemispherical Shell and Surrounding Eave-Shaped Electrodes
Micromachines, 2021 A hemispherical resonator consists of a hemispherical shell and the surrounding circular electrodes. The asymmetry of a hemispherical shell has influence on the vibrating mode and quality factor.
Renxin Wang +4 more
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Decreasing Frequency Splits of Hemispherical Resonators by Chemical Etching [PDF]
Sensors, 2018 The hemispherical resonator gyroscope (HRG) has attracted the interest of the world inertial navigation community because of its exceptional performance, ultra-high reliability and its potential to be miniaturized.
Yuting Wang +5 more
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Design and Optimization of Hemispherical Resonators Based on PSO-BP and NSGA-II [PDF]
Micromachines, 2023 Although one of the poster children of high-performance MEMS (Micro Electro Mechanical Systems) gyroscopes, the MEMS hemispherical resonator gyroscope (HRG) is faced with the barrier of technical and process limits, which makes it unable to form a ...
Jinghao Liu +7 more
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Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna [PDF]
Micromachines, 2023 A novel approach is proposed to design a circularly polarized (CP) hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth by incorporating an additional dielectric substrate between the antenna and the ground plane.
Meshari D. Alanazi, Salam K. Khamas
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