Haltere-Like Optoelectromechanical Gyroscope

We report an optoelectromechanical vibratory gyroscope inspired by halteres of dipteran flies. The gyroscope utilizes optical displacement sensing to achieve a Brownian-motion-limited displacement sensitivity without mechanical resonant amplification in the sense mode. This yields a threefold difference between the resonance frequencies of the drive and sense modes, corresponding to a theoretical ...