发明名称 |
Vibrating gyroscope using piezoelectric film and method for manufacturing same |
摘要 |
A vibrating gyroscope comprises a ring-shaped vibrating body (11) a leg portion (15) flexibly supporting the body (11) and having a fixed end, a fixed potential electrode (16), and a plurality of electrodes (13a-13d) with a piezoelectric film sandwiched between an upper and a lower-layer metallic film in a thickness direction thereof. When N is a natural number of 2 or more, the plurality of electrodes (13a-13d) include driving electrodes (13a) for a primary vibration in a vibration mode of cosN&thetas;, which are each disposed (360/N)° apart from each other in a circumferential direction, first detection electrodes (13b) and second detection electrodes (13d) for detecting a secondary vibration generated when an angular velocity is applied to the body (11), which are each disposed in a certain region related to the driving electrode (13a) Each of the electrodes is also disposed in a certain region of the body (11).
|
申请公布号 |
US8381590(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US20080863639 |
申请日期 |
2008.11.26 |
申请人 |
SUMITOMO PRECISION PRODUCTS CO., LTD.;IKEDA TAKASHI;NISHIDA HIROSHI;TORAYASHIKI OSAMU;TAKEMURA MITSUHIKO;FUJIMURA TSUYOSHI;ARAKI RYUTA;MORIGUCHI TAKAFUMI;TESHIMA NOBUTAKA;HIRATA YASUYUKI |
发明人 |
IKEDA TAKASHI;NISHIDA HIROSHI;TORAYASHIKI OSAMU;TAKEMURA MITSUHIKO;FUJIMURA TSUYOSHI;ARAKI RYUTA;MORIGUCHI TAKAFUMI;TESHIMA NOBUTAKA;HIRATA YASUYUKI |
分类号 |
G01C19/56;G01C19/5684 |
主分类号 |
G01C19/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|