An acceleration sensor, commonly known as an accelerometer, is a device designed to detect and measure acceleration forces acting on an object. These forces can be static, such as gravity, or dynamic, resulting from motion, vibration, impact, or changes in speed and direction. The sensor converts these forces into electrical or digital signals for motion tracking, orientation detection, and system control.

Acceleration sensors typically use MEMS (Micro-Electro-Mechanical Systems) technology, piezoelectric elements, or capacitive sensing principles. They can measure acceleration along one, two, or three axes, providing detailed information about movement, tilt, and orientation.

Modern accelerometers are compact, low-power, highly accurate, and capable of real-time data transmission, making them suitable for integration with IoT platforms, automation systems, and monitoring networks.

They are widely used in consumer electronics, industrial equipment, automotive systems, robotics, aerospace, and wearable devices, where precise measurement of acceleration and orientation is critical for performance optimization, safety, and motion analysis.