Balancing of hemispherical resonator gyros by chemical etching

A procedure for balancing the four lower harmonics of the mass distribution defect in a fused quartz hemispherical toothless resonator of a hemispherical resonator gyroscope is considered. Chemical etching of unbalanced mass from the surface of a partially immersed resonator is done in accordance wi...

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Bibliographic Details
Published inGyroscopy and navigation (Online) Vol. 6; no. 3; pp. 218 - 223
Main Authors Basarab, M. A., Lunin, B. S., Matveev, V. A., Chumankin, E. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 05.07.2015
Subjects
Aerospace Technology and Astronautics
Engineering
Geophysics/Geodesy
Unbalanced Mass
Lower Harmonic
Etching Solution
Hemispherical Shell
Fuse Quartz
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Summary:A procedure for balancing the four lower harmonics of the mass distribution defect in a fused quartz hemispherical toothless resonator of a hemispherical resonator gyroscope is considered. Chemical etching of unbalanced mass from the surface of a partially immersed resonator is done in accordance with analytically calculated angle of the resonator rotation about the axis of symmetry, inclination and depth of the resonator immersion into a chemical bath, and the time of chemical etching. It is shown that the proposed method significantly reduces the balancing time and labor input as compared with ion plasma etching.
ISSN:2075-1087
2075-1109
DOI:10.1134/S2075108715030025