How Accelerometer Works An accelerometer Sensor is an electromechanical device that measures acceleration forces. These forces may be static or dynamic which is caused by moving or vibrating the accelerometer. By measuring the amount of static acceleration due to gravity, you can find out the angle the device is tilted at with respect to the earth. By sensing the amount of dynamic acceleration, you can analyze the way the device is moving. There are different types of accelerometers : Piezo electric accelerometer Piezo resistive accelerometer Strain gage accelerometers How does Piezoelectric accelerometer works Piezo electric accelerometer is based on principle of piezo electric effect. A Piezo electric substance is one that produces an electric charge when a mechanical stress is applied. In a Piezo electric accelerometer a mass is attached to a Piezo electric crystal which is in turn mounted to the case of the accelerometer. When the body of the acceleromete...