UNIT 9
UNIT 9
Lesson 9 40 mins
| Gyro sensor is an in-built sensor on Pluto |
WHAT IS A GYRO SENSOR? (10 mins)
| Gyro sensor is also found in smartphones and other systems. One of the examples is a smartphone game “Asphalt” in which the user steers the car by rotating the screen. |
Gyro sensors, also known as angular rate sensors or angular velocity sensors, are devices that sense angular velocity
HOW DOES A GYRO SENSOR WORK? (15 mins)
| It can be explained with a short explanation followed by the youtube video by smartereveryday (Link provided below) |
Gyro sensors work according to the Coriolis effect that is a force that acts on objects that are in motion relative to a rotating reference frame.
Refer: https://www.youtube.com/watch?v=aDorTBEhEtk&t=137s
So if you have a body of a certain mass and it is moving with a velocity in a particular direction,if there’s an external angular velocity applied,there will be a force generated called coriolis force.
The next image depicts the MEMS form of a gyro sensor and this will help explain how the change in velocity and angular velocity of a body leads to change in the capacitance.
So we can obtain appropriate voltage values from these capacitance values.
GYRO DRONE EXPERIMENT (PLUTO BLOCKS) (15 mins)
| This experiment is a great way to perceive how gyro sensor works. Trainer can code it and demonstrate. |
Gyroscope is one of the most important sensors found in applications ranging from smartphones to submarines and Hubble Telescope. Through this project, let us understand the working of Gyroscope sensor by experiencing its effect by holding the drone in your hand.
In this project, we will use the data from only Gyroscope sensor to power the motors. This will make the motors to rotate depending on the data of Gyroscope sensor. Positive values of the data should power one set of motors and the negative values should power the other set.
Try to change the inclination of Pluto about the roll axis without making themotors rotate. This will have to be done very slowly!