Question

How many and what are the parts that are present in the accelerometer sensor?

(a) 1, capacitor sensor

(b) 3, piezoelectric effect, Analog display, digital display

(c) 2, piezoelectric effect and capacitor sensor

(d) 2, Capacitor sensor, digital Display

This question was posed to me during an online interview.

The query is from Accelerometer and Gyroscope Sensor in section Sensors of IOT

Answer 1

Correct option is (c) 2, piezoelectric effect and capacitor sensor

Best explanation: The accelerometer consists of many different parts and work in many ways, two of which are piezoelectric effect and the capacitor sensor. The piezoelectric effect is the most common form of accelerometer and uses microscopic crystal structures that become stressed due to accelerative forces.

The capacitance accelerometer senses changes in capacitance between micro structures located next to the device.