Weak Value Amplification Coriolis Vibratory Gyroscope

摘要

A weak value amplification (WVA) Corolis vibratory gyroscope (CVG) is provided for measuring angular rate. The WVA CVG includes a vibratory structure that induces a deflection; an optical weak value amplifier that amplifies the deflection as an amplified signal; and a weak value detector to measure the amplified signal to determine the angular rate. Further exemplary embodiments provide first and second plates, a laser, a polarizing filter, a beam-splitter, left and right mirrors, a half-wave plate, a retarder and a detector. The first plate has four corners. The second plate has a flat surface that contacts one corner of the first plate at 45°. The laser emits an emission beam of photons. The polarizing filter polarizes the emission beam. The beam-splitter divides the beam into left and right beams. The left and right mirrors reflect respective the left and right beams. The half-wave plate shifts polarization of the left and right beams by 90°. The retarder imposes a phase difference between the left and right beams. The detector measures the left and right beams. The second plate vibrationally translates back and forth normal to the flat surface. The left and right beams reflect from the respective right and left mirrors, passing through the beam-splitter and reaching the detector.