Abstract: This invention relates to a measurement equipment and can be used to create means of measuring coordinates and angular values of an object freely moving in space with six degrees of freedom. The invention can be applied in human-machine interfaces as a coordinate input device, particularly, in training systems, in robotics, in augmented, virtual reality and mixed reality systems. The technical result is to increase the measurement accuracy by eliminating the measurement error of the gravity vector direction caused by the movement of the platform with sensors.