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1.发明授权公开(公告)号：US06813584B2
公开(公告)日：2004-11-02
申请号：US10094991
申请日：2002-03-12
申请人： Zhaoying Zhou , Rong Zhu , Xiaohao Wang , Xiongying Ye , Shenshu Xiong , Xuefeng Sun , Junhua Zhu , Qiang Wei , Guanglong Wang
发明人： Zhaoying Zhou , Rong Zhu , Xiaohao Wang , Xiongying Ye , Shenshu Xiong , Xuefeng Sun , Junhua Zhu , Qiang Wei , Guanglong Wang
IPC分类号： G01C1700
摘要： A system and method for determining attitude using triaxial micro electro-mechanical accelerometer-magnetometer sensors. The triaxial accelerometer-magnetometer sensors measure the triaxial components of the local gravity and magnetic field along three sensing axes of the sensors. The misalignment of the components due to nonorthogonal triaxial assembling of the sensors is estimated via performing three optical alignments and is further compensated in the sensing outputs. A micro-cube with three orthogonal coated mirrors is fixed on the circuit board of the system for implementing the optical alignments. The compensated sensing components are processed to figure out the attitude using Orientation Cosine Conversion of the local gravity and magnetic field. The computation for determining the attitude is based on the inverse tangent of the ratio of the processed components, which is more precise than the computation using the absolute values of the components.
摘要翻译： 使用三轴微机电加速度计 - 磁力计传感器确定姿态的系统和方法。 三轴加速度计 - 磁力计传感器沿着传感器的三个感测轴测量局部重力和磁场的三轴分量。 通过执行三个光学对准来估计由于传感器的非正交三轴组装导致的部件的未对准，并且在感测输出中进一步补偿。 具有三个正交涂覆反射镜的微立方体固定在用于实现光学对准的系统的电路板上。 利用局部重力和磁场的取向余弦转换来处理补偿的感测部件，以计算出姿态。 用于确定姿态的计算基于处理部件的比率的反正切，其比使用部件的绝对值的计算更精确。
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公开(公告)号：US20050266780A1
公开(公告)日：2005-12-01
申请号：US11190421
申请日：2005-07-27
申请人： Xuefeng Sun
发明人： Xuefeng Sun
CPC分类号： B24B29/00 , B24B23/00 , B25F5/026 , Y10T16/476
摘要： The present invention relates to a handheld power tool including: a main housing, a rear handle mounted on the main housing and a handle connected to the main housing. A base portion of the main housing has a buffing member in the basal plane. The handle comprises two oppositely disposed side handle members and a front handle joined between the front end portions of the two oppositely disposed side handle members. The two oppositely disposed side handle members tilt (ie are non-parallel) with respect to the basal plane. The present invention has the advantage that during buffing of a workpiece, the operator's wrists need bend to only a small degree to accommodate the non-parallel disposition of the buffing member leading to labour efficiency and reduced wrist tiredness.
摘要翻译： 本发明涉及一种手持电动工具，其包括：主壳体，安装在主壳体上的后把手和连接到主壳体的手柄。 主壳体的基部在基面上具有抛光构件。 手柄包括两个相对布置的侧手柄构件和连接在两个相对布置的侧手柄构件的前端部之间的前把手。 两个相对布置的侧手柄部件相对于基面平面倾斜（即不平行）。 本发明的优点在于，在抛光工件时，操作者的手腕需要弯曲到很小的程度以适应抛光构件的不平行布置，从而导致劳动效率并减少了腕部疲劳。
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公开(公告)号：US06942557B2
公开(公告)日：2005-09-13
申请号：US10760128
申请日：2004-01-16
申请人： Xuefeng Sun
发明人： Xuefeng Sun
CPC分类号： B24B29/00 , B24B23/00 , B25F5/026 , Y10T16/476
摘要： The present invention relates to a handheld power tool including: a main housing, a rear handle mounted on the main housing and a handle connected to the main housing. A base portion of the main housing has a buffing member in the basal plane. The handle comprises two oppositely disposed side handle members and a front handle joined between the front end portions of the two oppositely disposed side handle members. The two oppositely disposed side handle members tilt (ie are non-parallel) with respect to the basal plane. The present invention has the advantage that during buffing of a workpiece, the operator's wrists need bend to only a small degree to accommodate the non-parallel disposition of the buffing member leading to labour efficiency and reduced wrist tiredness.
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公开(公告)号：USD488595S1
公开(公告)日：2004-04-13
申请号：US29178136
申请日：2003-03-21
申请人： Xuefeng Sun
设计人： Xuefeng Sun
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公开(公告)号：USD521834S1
公开(公告)日：2006-05-30
申请号：US29197639
申请日：2004-01-16
申请人： Paolo Andriolo , Xuefeng Sun
设计人： Paolo Andriolo , Xuefeng Sun
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公开(公告)号：USD510317S1
公开(公告)日：2005-10-04
申请号：US29177551
申请日：2003-03-11
申请人： Xuefeng Sun
设计人： Xuefeng Sun
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