Vibrating tine resonators and methods for torsional and normal dynamic vibrating mode

摘要

A vibrating tine resonator having a unitary body cut from flat, planar crystalline stock includes spaced apart end portions and a tine system extending between said portions. The tine system includes a pair of similar tine arrays extending side-by-side between base portions. Each array includes a pair of tines extending parallel to one another and defining a slot separating each adjacent pair of tines. Each array also includes a bridge portion spanning the slot and joining the tines. The resonator is excited to operate in a dynamic mode including both a torsional motion component and also a normal motion component. The bridge portion interconnecting adjacent tines is pivoted around an axis parallel with the tines. The tines are also moved to vibrate in directions normal to the flat plane of the resonator body.