A new method for calibrating gyro sensors

In this paper a new method is presented that can be used to simulate real working conditions of gyro sensor. The gyro sensor was mounted inside an aircraft model which was suspended between two parallel screens. Driven by external forces, the aircraft model flew randomly. Two collimated laser beams, mounted on the outer surface of the aircraft model produced four laser spots on the screens. The 3D coordinates of the laser spots were measured by binocular stereo vision sensor and the attitude of the aircraft model were determined using Euler's algorithm. The final step was to calibrate the gyro sensor by comparing its output signal to the actual attitude of the aircraft model. The accuracy of attitude determination was analyzed and the results showed that the attitude of the aircraft model can be determined accurately using the method proposed in this paper.