The sensor successively calculates a rolling angle, pitch angle and azimuth from the coordinate transformation matrix with the level error and azimuth error compensated. It calculates (26) azimuth error compensatory values using the GPS direction signal an...

An acceleration-detecting type gyro apparatus of an electrostatic supporting type, in which displacements of a gyro rotor are actively made zero is proposed. The acceleration-detecting type gyro apparatus includes: a gyro case; a gyro rotor which is suppor...