Patent ID: 9557345
Date: 2017-01-31
CPC Classifications: G01C,G01P

Claim:
1. An inertial sensor comprising: an acceleration sensor; an angular velocity sensor; and a control circuit configured to control the acceleration sensor and the angular velocity sensor, wherein the acceleration sensor includes: a voltage signal input to the first electrode of the acceleration sensor is generated from a clock synchronizing with a voltage signal input to the second electrode of the angular velocity sensor, the voltage signal input to the first electrode of the acceleration sensor is a signal for detecting a mechanical failure, a carrier signal for detecting displacement of the first movable section of the acceleration sensor has a frequency higher than a frequency of a signal applied to the first electrode, and the acceleration sensor is configured to obtain, at a resonant frequency of the angular velocity sensor, a gain more than 0 dB due to a resonant frequency of the acceleration sensor that is configured to detect acceleration.