What is a Gyro Sensor or gyroscope?
A gyro sensor, angular rate sensor or angular velocity sensor is a device that can sense angular velocity. Gyro sensors can sense rotational motion and changes in orientation and therefore augment motion. Vibration gyro sensors can sense angular velocity due to the Coriolis force which is applied to a vibrating element. This motion produces a potential difference from which angular velocity is sensed. The angular velocity is converted into an electrical signal output.
Gyroscope are similar to acceletometer like they measure how movement in different direction . But the main difference is gyroscope are based on gravity . If any gyroscope is moved in certain direction it will gives us information about how much angle it moved with respect to gravity .
Applications for Gyro Sensors:
The main applications for gyro sensors are:
- Angular velocity sensing: to sense the amount of angular velocity produced, which is the motion itself. An example would be the sensing of athletic movement.
- Angle sensing: to sense the angular velocity produced by the movement of the sensor itself. Angles are detected by a CPU. Thus, the moved angle is fed to and reflected in an application. Examples are car navigation systems, video game controllers and mobile phones.
- Control mechanisms: to senses the vibration produced by external factors. This vibration data is then transmitted as electrical signals to a CPU. This is used in correcting the balance or orientation of an object. Some examples include camera-shake correction and vehicle control.
In microcontroller sections you will learn detail about gyroscopic sensor interfacing .
Watch this video from Vsauce