Title:
ROTATIONAL VIBRATION GYRO
Document Type and Number:
WIPO Patent Application WO/2012/004979
Kind Code:
A1
Abstract:
Provided is a rotational vibration gyro which achieves improvement in the degree of freedom of design regarding flexural and torsional characteristics of a support spring. Disclosed is a rotational vibration gyro (1) characterized by being provided with a movable weight (4) which is released above a substrate (2) and has a slit (8) passing the center of gravity and extending in the axial direction of a detection axis, a drive electrode (3) which rotationally vibrates the movable weight (4) around the Z axis that passes the center of gravity thereof, a detection electrode (9) which detects the displacement of the movable weight (4) that is swung around the detection axis by Coriolis force, an anchor (6) which is provided so as to project from the substrate (2) and inserted into the slit (8) concentrically with center of gravity and supports the movable weight (4), and two rows of support springs (7) which are hung between the anchor (6) and the movable weight (4), are parallel in the detection axis direction, and are disposed line-symmetrically with respect to the detection axis.
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Inventors:
SUGITA, Tetsuro (1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
杉田 哲郎 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
ITO, Saburo (1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
伊藤 三朗 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
杉田 哲郎 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
ITO, Saburo (1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
伊藤 三朗 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
Application Number:
JP2011/003829
Publication Date:
January 12, 2012
Filing Date:
July 05, 2011
Export Citation:
Assignee:
PIONEER CORPORATION (1-1 Shin-ogura, Saiwai-ku Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
パイオニア株式会社 (〒31 神奈川県川崎市幸区新小倉１番１号 Kanagawa, 〒2120031, JP)
PIONEER MICRO TECHNOLOGY CORPORATION (465 Osato-cho, Kofu-shi Yamanashi, 53, 〒4000053, JP)
パイオニア・マイクロ・テクノロジー株式会社 (〒53 山梨県甲府市大里町４６５番地 Yamanashi, 〒4000053, JP)
SUGITA, Tetsuro (1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
杉田 哲郎 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
パイオニア株式会社 (〒31 神奈川県川崎市幸区新小倉１番１号 Kanagawa, 〒2120031, JP)
PIONEER MICRO TECHNOLOGY CORPORATION (465 Osato-cho, Kofu-shi Yamanashi, 53, 〒4000053, JP)
パイオニア・マイクロ・テクノロジー株式会社 (〒53 山梨県甲府市大里町４６５番地 Yamanashi, 〒4000053, JP)
SUGITA, Tetsuro (1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
杉田 哲郎 (〒31 神奈川県川崎市幸区新小倉１番１号パイオニア株式会社内 Kanagawa, 〒2120031, JP)
International Classes:
G01C19/56
Attorney, Agent or Firm:
OCHIAI, Minoru (2th Floor, taiyo Building 12-4, Iwamotocho 1-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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