ADXL345TCCZ-EP

Motion Sensors - Accelerometers

Accelerometers are motion sensors used to detect alterations in a device\'s acceleration and orientation, and are among the most common sensors used in electronics, with the ADXL345TCCZ-EP accelerometer being one of the most popular.

ADXL345TCCZ-EP Application Fields

ADXL345TCCZ-EP accelerometers provide a 3-axis sensing that can be used for a variety of motion sensing applications. These include automotive and industrial control systems, navigation systems, elevator safety systems, medical equipment, fitness trackers, sports performance analysis, smartphones, and even gaming environments.Due to its low power consumption, durability, and high-accuracy output, this accelerometer is ideal for a variety of devices. Its ease of integration and support of multiple communication interfaces—such as USB, UART, and I2C—make it an attractive choice among industrial and consumer-level designers.

Working Principle

The ADXL345TCCZ-EP accelerometer works on the basic principle that when a force is applied to it, the accelerometer creates an output voltage proportional to the acceleration of the force. The device\'s design makes use of microelectromechanical systems (MEMS) technology, which is the foundation of the accelerometer\'s functionality.At its core, the accelerometer consists of a spring-like structure with a tiny mass and electrodes that measure a measurable physical movement—usually rotation. When a force is applied in either direction, the mass of the spring exerts a restoring force proportional to the movement that causes a voltage change on the electrodes. The change in voltage generated from the movement of the mass produces an output voltage, which can be read by the system connected to the accelerometer.

Mathematical Calculation

The primary calculation for an accelerometer involves determining the acceleration experienced by the sensor. These calculations are used to measure the force that is applied to the accelerometer. The output of the ADXL345TCCZ-EP accelerometer is expressed in Gs, which represents the acceleration experienced in gravities (1 G = 9.8 m/s2).The formula used for this calculation is broadly defined as: Output voltage (in volts) = (Measured acceleration) -1 Therefore, if the measured acceleration = 3 Gs, the output voltage from the accelerometer would be 2 volts.