Device for measuring acceleration including a calibration function and related method for measuring acceleration

摘要

The system has a determination unit determining that the system is in a static phase if an acceleration value delivered by a reference accelerometer (beta) is lower than absolute value at threshold value and the system is in operational phase if the value is not less than the absolute value. A differential amplifier (14) determines an acceleration value in the operational phase by a difference between the acceleration measured by a main accelerometer (alpha) and a measurement of reference acceleration of the system in the static phase stored in a memory (10). The main and reference accelerometers are microelectromechanical system (MEMS) accelerometers. An independent claim is also included for a method for measuring acceleration.