Results 51 to 60 of about 158 (104)

Dynamic Modeling for Hemispherical Resonator Gyro by Using Lagrangian Mechanics

open access: yesJournal of Harbin University of Science and Technology, 2017
As an essential element of inertial technology,hemispherical resonator gyro(HRG)has become a prior choice of space applications. Dynamic modeling for HRG is the foundation of explicit analysis for HRG’s the- pries.
jin Xiu, MAN Chun-tao
doaj   +1 more source

A Comprehensive Error Modeling and On-Field Calibration Method for HRG SINS by Tumbling the Hexahedron

open access: yesSensors
On-field calibration for SINS often uses right hexahedron, but the influence of the structure errors, such as mutual position tolerances towards parallelism or the perpendicularity of two arbitrary planes of the hexahedron, on the calibration accuracy is
Yuanxi Li   +3 more
doaj   +1 more source

Гирокомпас с косвенным управлением для наземных подвижных объектов

open access: yes, 2020
Стаття має дві частини. Перша частина є історичним оглядом створення двох поколінь морських і наземних гірокомпасів, з прямим і непрямим керуванням. При огляді гірокомпасів з прямим керуванням (маятникових гірокомпасів), з використанням першоджерел і ...
Заморський, Олександр Володимирович
core   +1 more source

Torque-Dependent Anchor Loss and Fourth-Harmonic Damping Anisotropy in Coriolis Vibratory Gyroscopes

open access: yesSensors
The quality factor (Q) and its circumferential non-uniformity are essential for the resolution and long-term stability of Coriolis vibratory gyroscopes (CVGs).
Ning Wang   +4 more
doaj   +1 more source

Manufacturing of 8 million Q-factor micro hemispherical resonator gyroscopes via patterned coating technology

open access: yesMicrosystems & Nanoengineering
As the core sensitive element of high-precision inertial navigation systems, the Q-factor and frequency splitting of the micro hemispherical resonator gyroscope (mHRG) are critical determine the performance of the inertial measurement unit (IMU). However,
Feng Zhu   +8 more
doaj   +1 more source

Les verres métalliques massifs : MatéRiaux à faible ou à fort coefficient d'amortissement ?

open access: yes, 2011
cited By 0International audienceBulk metallic glasses: materials with a low or a high damping coefficient? Bulk metallic glasses exhibit attractive features, especially their elastic properties, combined with a good process ability at a not too high ...
Pelletier, Jean-Marc
core   +1 more source

On the influence of surface phenomena on mechanical damping of fused-silica resonator with application to the Hemispherical Resonator Gyroscope

open access: yes, 2014
Les travaux de thèse présentés traitent de l'évolution de l'anisotropie d'amortissement mécanique d'un résonateur avec son état de surface et proche surface physicochimique. L'anisotropie d'amortissement étant compliquée techniquement à caractériser, les
Le gentil, Adrien
core  

半球殼陀螺儀之驅動與感測研究

open access: yes, 2007
本文探討以壓電驅動及感測半球殼的振動模態分析與旋轉後的模態漂移量測,並得出感測電壓與角速度之關係。半球殼式諧振陀螺儀(Hemispherical Resonator Gyro)係以石英球殼為振動元件,採用電場參數激發,當球殼旋轉時得以保持施力點相對於振動模態不變的優點,但製作上的困難使其並不普及。因而本文建立以壓電激發與感測之金屬半球殼振動陀螺儀,利用置於半球殼上之壓電片,迴授信號鎖定相位以激發球殼之某一個共振模態。球殼旋轉時模態受到激發力與科氏力的合力作用,導致振態變化,以抑制迴路將模態拉回原位 ...
Yu, Tao-Cheng, 禹道正
core  

Yapısal kusurlar, stres ve sıcaklığın dairesel MEMS dönü-ölçerlere etkilerinin analitik ve deneysel olarak çalışılması

open access: yes
Cataloged from PDF version of article.Includes bibliographical references (leaves 140-149).Inspired by the outstanding performance of the hemispherical resonator gyroscopes (HRG), MEMS gyroscopes with circularly symmetric structures are a promising ...
Hosseini-Pishrobat, Mehran
core  

Hemispherical Resonator Gyroscope System by utilizing 3x3 Optical Interferometer

open access: yes, 2021
윤태일   +6 more
core  

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