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1. 发明授权

US5406715A Tape measure device 失效
标题翻译：卷尺装置
公开(公告)号：US5406715A
公开(公告)日：1995-04-18
申请号：US81686
申请日：1993-06-24
申请人： Hiroshi Koizumi , Mitsugu Sugawara , Toru Kodato
发明人： Hiroshi Koizumi , Mitsugu Sugawara , Toru Kodato
IPC分类号： G01B3/10 , G01B7/02
CPC分类号： G01B3/1002 , G01B2003/1066 , G01B2003/1069 , G01B2003/1094
摘要： A tape measure device includes a belt tape member made of a flexible material. A cursor is slidably supported for movement on and along the belt tape member. The cursor includes a housing and an encoder which includes a relative displacement sensor for detecting a relative displacement value between the belt tape member and the cursor. The displacement sensor includes a first electrode made of a conductive ink and printed at predetermined and spaced intervals on and along the belt tape member. The conductive ink first electrode printed on the belt tape member is protectively coated by an electrically nonconductive insulative membrane. A second electrode is provided on the cursor and opposes the first electrode and the insulation membrane. A circuit is provided for creating an electrical capacitance value between the first and second electrodes and for issuing signals in response to a change of electrical capacitance between the first and second electrodes. A display responsive to the signals is provided for indicating the detected relative displacement value between the belt tape member and the cursor thereon.
摘要翻译：卷带装置包括由柔性材料制成的带束带构件。可滑动地支撑光标以沿着带束带部件移动。光标包括壳体和编码器，其包括用于检测带束带构件和光标之间的相对位移值的相对位移传感器。位移传感器包括由导电油墨制成的第一电极，并且沿着带束带部件以预定间隔间隔印刷。印刷在带束带构件上的导电油墨第一电极由不导电绝缘膜保护性地涂覆。第二电极设置在光标上并与第一电极和绝缘膜相对。提供了一种电路，用于在第一和第二电极之间产生电容值，并响应于第一和第二电极之间的电容变化发出信号。提供响应于信号的显示器，用于指示带带部件和光标之间的检测到的相对位移值。

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