Calibration of accelerometer with multicomponent inputs

For reducing the inconsistency of sensors´ characteristics in laboratory and working conditions, calibration of an accelerometer with multicomponent inputs is introduced. After a review of current equipments which are capable of producing combined accelerations, we introduced a different apparatus which can offer simultaneous harmonic and constant linear accelerations. It consists of a vibration exciter mounted on a centrifuge. With reference to the output model of the machine, we present a calibration method based on the vibration rectification error of accelerometer. The method is a multi-orientation test scheme with four different configurations and numerically validated in this paper. More investigations are needed to improve the calibration of accelerometer with multicomponent accelerations.