Keywordsacoustic gyroscope; Sagnac effect; phase difference; sound waves; angular velocity; sensitivity; piezoelectric micro-jet; ejection performance; modelling and simulation; micromanipulation; triple-finger; micro-gripper; piezoelectric actuator; hysteresis; rate-dependence; Prandtl-Ishlinskii; hybrid energy harvester; piezoelectric; electromagnetic; approximate distributed-parameter model; parametric analysis; micro-electromechanical system (MEMS); resonator; liquid sensing; piezoelectric; aluminium nitride (AlN); grape must fermentation; coupling analysis; fluid dynamic; piezoelectric micro-jet; flexure hinge; compliant bridge mechanisms; micro-motion scaling; kinematics; piezoelectric transducers; large stroke/high frequency vibrations; nonlinear duffing oscillator; artificial basilar membrane; cochlear implant; frequency selectivity; Archimedean spiral; aluminum nitride (AlN); piezoelectric cantilever; micro-electromechanical system (MEMS); finite element analysis; energy harvesting; transparent piezoelectrics; glass substrate; chemical solution deposition; piezoelectric actuators; hysteresis nonlinearity; Prandtl–Ishlinskii (PI) model; hysteresis compensation; micropolarization; microelectromechanical systems (MEMS); aluminum nitride; piezoelectric effect; cantilever; gyroscope; simulation; n/a