The accelerometer used to find the proper acceleration of an object being tilted or moved. The accelerometer composed of a Piezoelectric effect and a capacitance sensor. The piezoelectric effect, when a force experienced creates a potential and then accelerometer interprets the voltage to determine velocity and direction. The most common inertial sensor is the accelerometer, a dynamic sensor capable of a vast range of senses.
Accelerometers used to all three axes speed. ADXL335 called an accelerometer sensor or also a tilt sensor it is a small, thin, low power, complete 3-axis accelerator with signal conditioned voltage outputs. This measures acceleration at full scale of ±3 g. This measures 3 orthogonal axes speed, small in size with signal conditioned voltage.
This module alone cannot be used in your project. This has IC works on 3.3V. As the board has inbuilt 3.3 V regulator, 5 V supply set. The capacitance in the accelerometer changes between structures next to the device. If there is any change in force, the capacitance varies. This change converted into the voltage in accelerometer. The voltage is an indication of the acceleration exerted on a body or subject.
Accelerometers used to determine multiple axes, three-dimensional positioning is also present. Nowadays, Smartphones uses 3D models, the car uses a 1D model to predict the moment of impact. The sensitivity is high as it measures even small changes in acceleration. Higher the sensitivity, more apparent to measure acceleration.
- Motion Sensor
- Shock detector
- Vibration sensor
- Gesture Recognition
- Accident Detection
- Medical Devices
We also have the Piezoelectric crystal. Visit the below link,