Gyroscope à vibration piézo-électrique

A piezoelectric vibrating gyroscope 10 includes a vibrator 12, the vibrator 12 includes, for example, a regular triangular prism-shaped vibrating body 13. On central portions of three side surfaces of the vibrating body 13, piezoelectric elements 14a, 14b and 14c are formed, respectively. The piezoelectric elements 14a, 14b and 14c include piezoelectric layers 16a, 16b and 16c consisting of a piezoelectric material, respectively. A material which does not cause the phase transition from a piezoelectric phase (a ferroelectric phase) to another piezoelectric phase within the temperature range of the use of the piezoelectric vibrating gyroscope 10 is used as the piezoelectric material of the piezoelectric layers 16a-16c.