RESONATOR FOR SEMISPHERICAL RESONANCE TYPE GYRO, AND SEMISPHERICAL RESONANCE TYPE GYRO

摘要

PROBLEM TO BE SOLVED: To provide a resonator or the like for a semispherical resonance type gyro not damaging easiness of a machine work of the resonator, capable of increasing a mode mass without increasing a resonance frequency, and reducing attenuation of energy caused by support, thereby having a high Q value.;SOLUTION: A resonator 10 in a semispherical resonance type gyro is constituted of a material having a linear expansion coefficient of 5×10^-6[/K] or less, and has a shank 1, and a resonance part 2 for maintaining a resonance pattern on a plane vertical to the shank 1. The resonance part 2 has a plurality of additional mass parts 4 on the radial direction outside of the edge of a semispherical shell. The shank 1 has a resonance frequency separated from the resonance frequency of the resonance part 2, and reduces attenuation of energy caused by support.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2017,JPO&INPIT