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This paper focuses on compliance error calibration. Because kinematic parameter error is the main error of a robot, we should first compensate for it. And because the compliance errors of some joints are too small, not all joints should be compensated for he compliance errors. We rotate the single joint along its axis locked other joints to obtain the statistical properties of all joints. The compliance...
Attitude measurement for aircraft plays an important role in many engineering fields such as automatic aircraft assembly and ground test of aircraft. This paper focused on a simple and efficient static measuring method of aircraft attitude based on laser tracker system. The main content includes the establishment of a mathematic model for attitude measurement, measuring processes with single and multiply...
In this paper, a comprehensive online error compensation approach using offline calibration results is proposed for industrial manipulators (with closed control architecture), in order to improve its accuracy. The contents in this paper include a calibration algorithm based on the product-of-exponential formula, an online error compensation procedure for implementing the calibration results on industrial...
For the ADMIRALS study of ESA/ESTEC, performed in 2000 - 2002 and subsequent mm-wave studies in 2003 - 2005, a Representative Test Object (RTO) was designed and built to validate the antenna measurement performance with a high gain reflector antenna at 203, 322 and 503 GHz. The RTO mainly contains out of an offset reflector antenna with 1.5 in reflector diameter and is related to future remote sensing...
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