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    Length reference bar system and method
    1.
    发明授权
    Length reference bar system and method 有权
    长度参考栏系统和方法

    公开(公告)号：US08141264B2

    公开(公告)日：2012-03-27

    申请号：US12131893

    申请日：2008-06-02

    申请人： Deighton E. Brunson

    发明人： Deighton E. Brunson

    IPC分类号： G01B5/14

    CPC分类号： G01B3/30 ,  Y10S33/19

    摘要： A length reference bar system and method that compensates for thermal expansion and allows for testing whether an instrument is working properly using only an inferometer. The length reference bar system has a bar portion with end caps for target positions on either end of the bar portion that extend inward toward each other such that, if a length of the bar portion changes due to a temperature change, a length of the end caps also changes but in an opposite direction to counteract the bar portion length change. As such, any target positions mounted on the end caps remain at a constant distance from each other regardless of the temperature thereby canceling out the effect of thermal expansion. The end caps also provide multiple target positioning capability so that any targets mounted thereon may be positioned in various configurations to provide a user with increased versatility for applications such as checking calibration.

    摘要翻译： 补偿热膨胀的长度参考棒系统和方法，并允许仅使用一个推测仪来测试仪器是否正常工作。 长度参考杆系统具有杆部分，其具有端盖，用于在杆部分的任一端上的目标位置，其朝向彼此向内延伸，使得如果杆部分的长度由于温度变化而变化，则末端的长度 盖也改变，但是在相反的方向上以抵消杆部长度变化。 因此，无论温度如何，安装在端盖上的任何目标位置保持彼此恒定的距离，从而消除热膨胀的影响。 端盖还提供多个目标定位能力，使得安装在其上的任何目标可以被定位在各种配置中，以向用户提供用于诸如检查校准的应用的增加的通用性。

    Length measuring system
    2.
    发明授权
    Length measuring system 失效
    长度测量系统

    公开(公告)号：US5279043A

    公开(公告)日：1994-01-18

    申请号：US855218

    申请日：1992-03-20

    申请人： Heinz Rieder ,  Max Schwaiger

    发明人： Heinz Rieder ,  Max Schwaiger

    IPC分类号： G01B5/00 ,  G01D5/26 ,  G01B21/02

    CPC分类号： G01B5/0011 ,  Y10S33/19

    摘要： A length measuring system comprises an elongate scale member adapted to be scanned for generating measured-length signals, a tubular scale member carrier defining an internal cavity housing the scale member and including a mounting wall, a connection of the scale member to the scale member carrier, the connection permitting a longitudinal movement of the scale member relative to the scale member carrier, and end blocks rigidly connected to the scale member carrier at both ends thereof, the end blocks defining recesses and having opposite sides. Devices are provided in the recesses of the end blocks for fastening the scale member carrier to an object and for compensating for length differences resulting from a differential thermal expansion of the scale member carrier and the object, the devices including an intermediate part having two ends and defining a through hole between the ends for receiving a fastening element for fastening the end blocks to the object, and webs having one end connected to the ends of the intermediate part and extending transversely to the longitudinal direction, the webs defining at least along a major portion of their length a clearance with the fastening element and adjacent surfaces of the recess, and an opposite end of the webs connected to the end blocks, the webs having a relatively small flexural stiffness in the longitudinal direction and a relatively high flexural stiffness in a direction extending transversely to the longitudinal direction.

    摘要翻译： 长度测量系统具有刻度（1）和扫描单元，该扫描单元可以相对于其长度被调整，刻度件安装在刻度支架（3）上，同时形成用于刻度和扫描的管状保护壳 所述标尺支撑件（3）设置有安装元件，所述安装元件产生分布在其长度上的多个附接点（9）和/或附接点，设置在端子盖块（6）中，用于连接到物体， 其中一个安装元件可以是定位轴承，并且在剩余的附接点（9）的区域中设置补偿装置，用于在物体的不同热膨胀，标尺（1）和标尺承载件（3）的情况下补偿长度 ）。 所述补偿装置（9,17）各自具有中心部分（13,18），所述中心部分具有用于所述安装螺钉和所述安装螺钉的保持腹板（15,22）的引导开口（14,16），所述保持腹板在其两侧相邻， 附接在秤座支撑件（3）的容纳凹部（11,12,20,21）和/或标尺支撑件的端子盖块（6）相对于支撑件的纵向方向基本上横向，并且至少 在大部分长度上，从螺钉和凹陷壁的间隙开始，它们的端部作用在刻度支撑件（3）或端子盖块（6）上，并且具有相对低的弯曲强度 标尺支撑件（3）的纵向方向，但横向于纵向的相对较高的弯曲强度。