| 摘要 |
PCT No. PCT/SE90/00112 Sec. 371 Date Aug. 27, 1991 Sec. 102(e) Date Aug. 27, 1991 PCT Filed Feb. 20, 1990 PCT Pub. No. WO90/10196 PCT Pub. Date Sep. 7, 1990.A sensor element intended for a gyro, comprises an elongated body including at least one elongated element defining a tine and having a first and a second end. The first end is freely vibratable in two planes perpendicular to each other, designated as the X-Y plane and the Y-Z plane. The second end is fixedly secured in a body rotatable about a longitudinal axis which coincides with the planes. Drive and sensor electrodes are provided for piezoelectrically detecting vibrations of the first end, the drive electrodes providing vibrations in a plane perpendicular to the plane in which the sensor electrodes detect the vibrations, the drive and sensor electrodes covering substantial portions of the first vibratable end of the elongated element. The elongated element, at its second, fixedly secured end includes a transitional portion and an anchorage portion which do not participate in the vibration to any appreciable degree. The anchorage portion includes a connection which through connectors coupled to the connection means connects the sensor element to outer electronics. The elongated body including the elongated element, the transitional portion and the anchorage portion is manufactured as one common piece of piezoelectric material. |
