Vibration type gyroscope and method for manufacturing vibration type gyroscope

摘要

A piezo-electric vibration reed 1 including connection arms extended in opposing directions from a base 12 , drive arms extended in a direction perpendicular to the connection arms at the respective tips of the connection arms 13 and 14 , and detection arms extended from the base 12 in a direction perpendicular to the connection arms. In the respective tips of the drive arms, and the detection arms, there are formed a first deadweight portion and a second deadweight portion, which are adjustment portions used for mass adjustment. The adjustment portions are formed of deadweight layers and an electrode film.