Vibrating gyroscope

A vibrating gyroscope comprising:

• a first piezoelectric base plate polarized in a direction of thickness;
• a second piezoelectric base plate laminated on said first piezoelectric base plate, and polarized in a reverse direction of the polarizing direction of said first piezoelectric base plate;
• two divided electrodes formed between said first piezoelectric base plate and said second piezoelectric base plate;
• a first common electrode formed on a main surface of said first piezoelectric base plate;
• a second common electrode formed on a main surface of said second piezoelectric base plate;
• a driving means for applying a driving signal between said first common electrode and said second common electrode;
• and
• a detecting means for detecting a signal generated between said two divided electrodes.

A vibrating gyroscope comprising:

• a first piezoelectric base plate polarized in a direction of thickness;
• a second piezoelectric base plate laminated on said first piezoelectric base plate, and polarized in the same direction as the polarizing direction of said first piezoelectric base plate;
• two divided electrodes formed between said first piezoelectric base plate and said second piezoelectric base plate;
• a first common electrode formed on a main surface of said first piezoelectric base plate;
• a second common electrode formed on a main surface of said second piezoelectric base plate;
• a driving means for applying a driving signal between said two divided electrodes, said first common electrode and said second common electrode;
• and
• a detecting means for detecting a signal generated between said two divided electrodes.

A vibrating gyroscope comprising:

• a first piezoelectric base plate polarized in a direction of thickness;
• a second piezoelectric base plate laminated on said first piezoelectric base plate, and polarized in the same direction as the polarizing direction of said first piezoelectric base plate;
• two first divided electrodes formed on a main surface of said first piezoelectric base plate;
• two second divided electrodes formed on a main surface of said second piezoelectric base plate;
• a common electrode formed between said first piezoelectric base plate and said second piezoelectric base plate;
• a driving means for applying a driving signal between one first divided electrode, one second divided electrode and said common electrode;
• and
• a detecting means for detecting a signal generated between said one first divided electrode and said one second divided electrode;
• wherein
• the other first divided electrode and the other second divided electrode are connected each other.

A vibrating gyroscope comprising:

• a first piezoelectric base plate polarized in a direction of thickness;
• a second piezoelectric base plate laminated on said first piezoelectric base plate, and polarized in the same direction as the polarizing direction of said first piezoelectric base plate;
• two first divided electrodes formed on a main surface of said first piezoelectric base plate;
• two second divided electrodes formed on a main surface of said second piezoelectric base plate;
• a common electrode formed between said first piezoelectric base plate and said second piezoelectric base plate;
• a driving means for applying a driving signal between said two first divided electrodes, said two second divided electrodes and said common electrode;
• and
• a detecting means for detecting a signal generated between one first divided electrode, one second divided electrode, the other first divided electrode and the other second divided electrode.