ANGULAR VELOCITY DETECTOR

摘要

THIS DETECTOR IS PROVIDED WITH AN OSCILLATOR BASE EXTENDING IN X-DIRECTION O N XY PLANE IN XYZ THREE-DIMENSIONAL COORDINATES SPACE AND FIXED TO AN OBJECT MATERIAL, THE ANGULAR VELOCITY OF WHICH IS TO BE DETECTED, AN OSCILLATOR HAVING A FIRST OSCILLATING MEMBER PROJECTING FROM THE OSCILLATOR BASE IN +Y- DIRECTION AND HAVING A FIRST NATURAL FREQUENCY IN X-DIRECTION AND A SECOND OSCILLATING MEMBER PROJECTING FROM THE OSCILLATOR BASE IN -Y-DIRECTION AND HAVING A SECOND NATURAL FREQUENCY IN X-DIRECTION DIFFERENT FROM THE FIRST NATURAL FREQUENCY, A MEANS FOR DRIVING EITHER ONE OF THE FIRST AND SECOND OSCILLATING MEMBERS IN Z- OR X-DIRECTION, A MEANS FOR DETECTING THE AMPLITUD E OF OSCILLATION ORTHOGONALLY CROSSING BOTH THE DIRECTION IN WHICH THE FIRST A ND SECOND OSCILLATING MEMBERS IS DRIVEN BY THE DRIVING MEANS AND Y-DIRECTION, A ND A MEANS FOR COMPUTING AN ANGULAR VELOCITY WITH RESPECT TO A Y-DIRECTION AXIS ON THE BASIS OF THE MAGNITUDE OF THE AMPLITUDE DETECTED BY THE AMPLITUDE DETECTING MEANS. THE SHAPE AND SIZES OF THE FIRST AND SECOND OSCILLATING MEMBERS ARE DETERMINED SO THAT THE OSCILLATOR BASE IS NOT OSCILLATED IN Z- DIRECTION WHEN THE FIRST OR SECOND OSCILLATING MEMBERS ARE EXCITED BY THE DRIVING MEANS. SINCE THIS DETECTOR IS THUS FORMED, AN ANGULAR VELOCITY CAN B E DETECTED WITH A HIGH ACCURACY.