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1. 发明授权

US4794406A Pen lifting and lowering positioner for graphic recorder 失效
标题翻译：用于图形记录器的笔升降定位器
公开(公告)号：US4794406A
公开(公告)日：1988-12-27
申请号：US75430
申请日：1987-07-20
申请人： Robert H. Niemeyer III
发明人： Robert H. Niemeyer III
IPC分类号： B43L13/02 , G01D9/30 , G01D15/16
CPC分类号： B43L13/024 , G01D15/16 , G01D9/30
摘要： An automatic pen positioning system is operative within a graphic recording system having a plurality of recording pens moveably supported by a pen carriage. The pen carriage is moveable along a first path above a media which is moveable along a second path. A motor drive system moves a selected one of the plurality of pens into contact with the media during recording. A closed loop servo system is operative upon the pen motor drive and is controlled by a position information processor. A following error processor is coupled to the servo system and compiles a periodically sampled table of absolute position, commanded position and following error for the servo system during the initialization process in which each pen is moved toward the media at a constant velocity until it impacts the media impeading further pen motion. The following error processor determines the pen to media contact position of the engaged pen on the basis of the information derived from the servo system. Each pen is sequentially subjected to the intialization process to establish its pen to media contact position.
摘要翻译：自动笔定位系统在图形记录系统内操作，具有可移动地由笔架支撑的多个记录笔。笔托架可沿着可沿着第二路径移动的介质上方的第一路径移动。在记录期间，电动机驱动系统将所选择的多个笔中的一个移动到与介质接触。闭环伺服系统在笔式电机驱动器上操作并由位置信息处理器控制。跟随误差处理器耦合到伺服系统，并且在初始化过程期间编译伺服系统的绝对位置，命令位置和跟随误差的周期性采样表，其中每个笔以恒定速度朝向介质移动，直到其影响媒体又引起了笔触。以下错误处理器根据从伺服系统导出的信息，确定所接收的笔的笔与介质接触位置。每支笔依次进行初步化处理，以建立其笔到媒体联络位置。

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