Consider the following actions:

1. Detection of car crash/collision which results in the deployment of airbags almost instantaneously.
2. Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive.
3. Detection of the tit of smartphone which results in the rotation of display between portrait and landscape mode.

In how many of the above action is the function of accelerometer required?

1. Only one
2. Only two
3. All three
4. None

Explanation

All statements are correct

• An accelerometer measures the vibration or acceleration of motion in a structure. When subjected to forces from vibration or changes in motion, the mass inside the accelerometer compresses the piezoelectric material, generating an electrical charge proportional to the applied force.
• Accelerometers have diverse applications across academic and consumer domains.
• For instance, in laptops, accelerometers protect hard drives from damage by detecting sudden drops and turning off the hard drive to prevent damage.
• In the automotive industry, accelerometers are crucial for detecting car crashes and deploying airbags almost instantaneously.
• Additionally, accelerometers in smartphones and digital cameras rotate the display according to the device’s orientation.

Answer: (c) All three; Difficulty Level: Easy