Rotary rate sensor for determining angular speed of article, has excitation oscillator with two prongs connected to base by bridge, which is arranged to displace excitation unit and prongs in lateral oscillation

摘要

The sensor has an excitation oscillator (30) with two prongs (11a, 11b), which are connected with one another by a base (12). A bar (21) connects the base with a substrate (1). An excitation unit (14) excites the prongs in opposed lateral oscillation. The prongs move based on Coriolis force perpendicular to direction of lateral oscillation, by swiveling the sensor around an axis perpendicular to the axis of the bar. The prongs are connected to the base by a bridge (13), which is arranged to displace the excitation unit and the prongs in the lateral oscillation.