Object Displacement Estimation With the Use of Microelectromechanical Accelerometer

This work discusses the issues related to the estimation of the displacement of an object which linear accelerations are measured using a MEMS accelerometer. The displacement estimation is based on measured accelerations. During the tests, the object moved on a surface similar to the surface of a concrete floor. The angular orientation of the tracking object with an accelerometer is constant during the measurement. An own algorithm has been proposed for estimating the displacement of an object moving on a surface with a non-zero roughness, based on acceleration measured with the MEMS accelerometer. In experimental studies, the estimated linear displacements were compared with the measured real values of the distance traveled by the object. With the experimental results obtained in the course of tests of 4 different accelerometers, their applicability for the construction of an inertial linear displacement sensor was comparatively determined.