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Some approaches to measure parallel 6-degree of freedom platform’s posture statically and to calibrate theplatform’s actual structural parameters by measuring a series of the platform’s varying postures are studied. In the casewhere high posture accuracy is required relatively, to obtain the platform’s actual structural parameters is very important.Three dimensions measurement with 2 theodolites are used to obtain the platform’s postures statically and Newton iterative method is adopted to calibrate structural parameters. Some measures taken in the measurement and the calibration arediscussed in detail. And the experiment results of the platform’s posture control before and after the calibration are given.The results show that the platform’s posture control accuracy after the calibration is improved notably.
Some approaches to measure parallel 6-degree of freedom platform’s posture statically and to calibrate the platform’s actual structural parameters by measuring a series of the platform’s varying postures are studied. In the case where high posture accuracy is required, to obtain the platform’s actual structural parameters is very important.Three dimensions measurement with 2 theodolites are used to obtain the platform’s postures statically and Newton iterative method is calibrated structural parameters. Some measures in the measurement and the calibration are not taken in detail. And the experiment results of the platform’s posture control before and after the calibration are given. The results show that the platform’s posture control accuracy after the calibration is improved notably.