A new Orientation Method for Inclinometer based on MEMS Accelerometer used in Industry 4.0

The paper describes a robust technique implemented into the inclinometer based on Lookup Table (LUT) Filter. The filter memorizes the acceleration data corresponding to the angle of inclination as an ideal curve graph of Microelectromechanical Systems (MEMS) accelerometer. This technique works as not only acceleration calibration but also a powerful tool of inclination measurement. A high precision robust setup for inclinometer calibration and metrology was built. The proposed method is applied to two axis-inclinometer with a maximum error of 0.2 degrees. For industrial applications, Control Area Network open (CANopen) is used as an embedded network communication system. The experiment includes both static and dynamic procedures to justify the accuracy as well as the stability of the operating system. The project was carried out at the 'Sensor System' in Italy, which is an industrial company in the inclinometer field.