Using the linear accelerometer, option among three axes or change of position of the object which includes the revolution regarding entirely, the method of measuring. For further use, information of 6 dimensions, namely, it measures and the parallel displacement in three dimensions and the revolution regarding three axes, concerning in order to supply, the method of using one linear accelerometer which integrates the linear accelerometer of two other 3D is disclosed. As for two linear accelerometer sensors, in order to decide everything other than one among the variables degree of freedom in 6, it is used. As for output from 3rd accelerometer, the data which is necessary in order to decide rotary 6 degree of freedom is formed. The change in header (namely, yaw or direction) as for necessity of the gyroscope in order to detect, consequently it can be avoided.
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