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通过精确质量确定元素组成:从四极杆到傅立叶变换离子回旋共振质谱仪 被引量:2
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作者 顾鸣 王永东 《分析测试学报》 CAS CSCD 北大核心 2007年第z1期106-108,112,共4页
A more comprehensive calibration involving m/z and peak shape has been developed to attain the high spectral accuracy necessary to achieve unique elemental composition determination. This approach can be applied for f... A more comprehensive calibration involving m/z and peak shape has been developed to attain the high spectral accuracy necessary to achieve unique elemental composition determination. This approach can be applied for formula determination at much lower resolution such as single or triple quadrupole mass spectrometers. 展开更多
关键词 Accurate mass Elemental composition determination
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Real-time accurate hand path tracking and joint trajectory planning for industrial robots(Ⅰ) 被引量:2
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作者 TAN Guan-zheng(谭冠政) +3 位作者 LIANG Feng(梁丰) WANG Yue-chao(王越超) 《Journal of Central South University of Technology》 2002年第3期191-196,共6页
Previously, researchers raised the accuracy for a robot′s hand to track a specified path in Car-tesian space mainly through increasing the number of knots on the path and the number of the path′s segments, which res... Previously, researchers raised the accuracy for a robot′s hand to track a specified path in Car-tesian space mainly through increasing the number of knots on the path and the number of the path′s segments, which results in the heavier online computational burden for the robot controller. Aiming at overcoming this drawback, the authors propose a new kind of real-time accurate hand path tracking and joint trajectory planning method. Through selecting some extra knots on the specified hand path by a certain rule and introducing a sinusoidal function to the joint displacement equation of each segment, this method can greatly raise the path tracking accuracy of robot′s hand and does not change the number of the path′s segments. It also does not increase markedly the computational burden of robot controller. The result of simulation indicates that this method is very effective, and has important value in increasing the application of industrial robots. 展开更多
关键词 industrial robots REAL-TIME ACCURATE HAND path tracking joint trajectory PLANNING EXTRA KNOT
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Real-time accurate hand path tracking and joint trajectory planning for industrial robots(Ⅱ)
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作者 谭冠政 胡生员 《Journal of Central South University of Technology》 EI 2002年第4期273-278,共6页
Previously, researchers raised the accuracy for a robot′s hand to track a specified path in Cartesian space mainly through increasing the number of knots on the path and the segments of the path. But, this method res... Previously, researchers raised the accuracy for a robot′s hand to track a specified path in Cartesian space mainly through increasing the number of knots on the path and the segments of the path. But, this method resulted in the heavier on line computational burden for the robot controller. In this paper, aiming at this drawback, the authors propose a new kind of real time accurate hand path tracking and joint trajectory planning method for robots. Through selecting some extra knots on the specified hand path by a certain rule, which enables the number of knots on each segment to increase from two to four, and through introducing a sinusoidal function and a cosinoidal function to the joint displacement equation of each segment, this method can raise the path tracking accuracy of robot′s hand greatly but does not increase the computational burden of robot controller markedly. 展开更多
关键词 industrial robot REAL-TIME ACCURATE HAND path tracking JOINT trajectory planning extra KNOT sinusoidal FUNCTION cosinoidal FUNCTION
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