Title:
振動構造ジャイロスコープでのスケール係数変動を測定するための方法および装置
Document Type and Number:
Japanese Patent JP4970729
Kind Code:
B2
Abstract:
Apparatus for measuring variation in scalefactor from a predetermined value for a vibrating structure gyroscope has a vibrating structure (R), fixed primary and fixed secondary drives ( 1, 13 ) for putting and maintaining the vibrating structure (R) in vibrating resonance, fixed primary and fixed secondary pick offs ( 2, 6 ) for detecting vibration of the vibrating structure (R), with the drives and pick offs ( 1, 13, 2, 6 ) being located radially around the vibrating structure (R), quadrature component and real component loop systems ( 7, 8 ), automatic gain control and phase locked loop systems ( 5, 22 ), a sin/cos pick off resolver ( 38 ) for receiving signals from the primary and secondary pick offs ( 2, 6 ) and for outputting signals to the quadrature component and real component loop systems ( 7, 8 ) and to the automatic gain control and phase locked loop systems ( 5, 22 ), a sin/cos drive resolver ( 37 ) for receiving output signals from the quadrature component and real component loop systems ( 7, 8 ) and from the automatic gain control and phase locked loop systems ( 5, 22 ) and for feeding control signals to the primary and secondary drives ( 1, 13 ), and an angular displacement control ( 40 ) for feeding angular displacement control signals to the sin/cos drive and pick off resolvers ( 38, 37 ) to control uniform displacement of the resolved carrier and response mode drives and pick offs axes angularly around the vibrating structure (R), with respect to a central axis of the vibrating structure, at a known rate.
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Inventors:
Fel, Christopher Paul
Townsend, Kevin
Kather, Andrew
Townsend, Kevin
Kather, Andrew
Application Number:
JP2004552853A
Publication Date:
July 11, 2012
Filing Date:
November 12, 2003
Export Citation:
Assignee:
Atlantic Inertial Systems Limited
International Classes:
G01C19/56; G01C19/567; G01C19/5776; G01C19/5783
Domestic Patent References:
| JP10267667A |
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen