A Scheme of Inertial Measurement Unit Using Triaxial 3 Accelerometers

In conventional inertial navigation systems, accelerometers are used to recognize linear acceleration and gyroscopes are used to recognize the angular velocity during the movement of a rigid body in order to identify its displacement. However, the gyroscope is a device of larger cost and larger power consumption when compared to the accelerometer. This paper proposes a scheme for constructing an inertial measurement unit using only signals from three triaxial accelerometers to identify the displacement of the body. The sensors can be assembled and distributed in a single plane of a coordinate system, facilitating the configuration of these devices and subsequent construction of a device capable of measuring the displacement of a rigid body. The installation of the acceleration sensors on the same plane enables the deployment of the devices on integrated circuit boards.