DEVELOPMENT, PRODUCTION AND TEST RESULTS FOR A MEDIUM-ACCURACY MEMS INS 'AIST-320' BASED ON COLIOLIS VIBRATORY GYRO 'AIST-100'

摘要

The paper presents results of design and development, production and testing of a medium accuracy MEMS INS "AIST-320". The system is built on a newly developed by "i-Sense" Coriolis vibratory gyro AIST-100. The key features of "AIST-320" system are: (1) replaceable sensor module; (2) thermo-stabilization system; (3) vibration protection system of the sensor module; (4) modular electronics: interfaces of the INS can quickly be adopted to user's requirements (RS-232, RS-422 or analog); (5) small dimensions: Φ150mm × 115 mm (mounting flange Φ170mm). The Coriolis vibratory gyro "AIST-100" consists of a micromechanical sensing element (SE) and an electronics board. Structure of the SE, its excitation and pick-off loops is presented. Overall results of modeling and developing gyro electronics are presented and discussed. The experimental results of the Coriolis vibrating gyro "AIST-100" are shown and analyzed.