Vibration-Type Angular Velocity Sensor

A vibration-type angular velocity sensor () includes a first angular velocity sensor unit () and a second angular velocity sensor unit (). In a predetermined period, the second angular velocity sensor unit performs a process of detecting an angular velocity based on secondary vibration of a vibrator () by a secondary side control circuit () and a process of detecting the angular velocity based on the secondary vibration of the vibrator by the primary side control circuit () by interchanging functions. The first angular velocity sensor unit detects the angular velocity in the predetermined period. The bias component of the first angular velocity sensor unit is calculated based on a first detection result detected by the first angular velocity sensor unit in the predetermined period and a second detection result detected by the second angular velocity sensor unit in the predetermined period.