Printhead which minimizes stray magnetic flux
    1.
    发明授权
    Printhead which minimizes stray magnetic flux 失效
    打印头,最大限度地减少杂散磁通量

    公开(公告)号:US4879947A

    公开(公告)日:1989-11-14

    申请号:US120724

    申请日:1987-11-16

    IPC分类号: B41J9/36

    CPC分类号: B41J9/36

    摘要: A dot matrix type printer head in which delays in the release of print hammers are eliminated by providing release coils only in alternate hammer positions, or alternatively, activating at one time only release coils in one of even-numbered and odd-numbered hammer positions. A rear yoke and a permanent magnet affixed to a lower leg of the rear yoke are provided in common for all hammer positions. An upper leg of the rear yoke is divided into a plurality of pole pieces. Hammer elements are provided having lower ends rigidly affixed to the rear yoke at positions adjacent the permanent magnet and upper ends retractable against pole faces of corresponding pole pieces by the magnetic force of the permanent magnet. In a first preferred embodiment of the invention, release coils are provided around only even-numbered or odd-numbered pole pieces. In a second preferred embodiment, release coils are provided around all pole pieces, but only release coils in even-numbered or odd-numbered hammer positions are driven simultaneously. In either case, stray magnetic flux which causes a delay in the release of a print hammer interposed between two previously activated print hammers is eliminated.

    摘要翻译: 通过仅在交替的锤位置中提供释放线圈来消除打印锤的释放延迟的点阵式打印机头,或者,一次只激活偶数和奇数锤位置之一的释放线圈。 固定在后轭的小腿上的后轭和永磁体设置在所有锤位置上。 后轭的大腿被分成多个极片。 锤元件具有下端,其刚性地固定在后轭上,在与永磁体相邻的位置处,上端通过永久磁铁的磁力可收回到相应极片的极面。 在本发明的第一优选实施例中,释放线圈仅围绕偶数或奇数极片设置。 在第二优选实施例中,释放线圈设置在所有极片周围,但是只有偶数或奇数锤位置的释放线圈同时被驱动。 在这两种情况下,消除了引起插入在两个之前激活的打印锤之间的打印锤的释放延迟的杂散磁通量。

    Blood analyzing system
    2.
    发明授权
    Blood analyzing system 失效
    血液分析系统

    公开(公告)号:US5296194A

    公开(公告)日:1994-03-22

    申请号:US824146

    申请日:1992-01-23

    申请人: Kenichi Igarashi

    发明人: Kenichi Igarashi

    CPC分类号: G01N21/78 B01L3/0227

    摘要: A blood analyzing system for analyzing the level of content of a component (such as glucose) of blood collected from a person or animal. In the blood analyzing system, a pipet unit includes a drop meter for measuring the volume of the blood sample actually dropped onto a test slide. Reacting to a reagent coated on the test slide, the blood sample changes its color, which is optically detected. A content calculating circuit calculates the level of content of the blood sample based on the received light signal. The content calculating circuit also corrects the calculated results according to the volume of the actually dropped blood sample.

    摘要翻译: 一种血液分析系统,用于分析从人或动物收集的血液的成分(例如葡萄糖)的含量水平。 在血液分析系统中,移液管单元包括用于测量实际落在测试载玻片上的血液样本的体积的滴液计。 对涂在测试载玻片上的试剂进行反应,血液样品改变其颜色,这是光学检测的。 内容计算电路基于所接收的光信号来计算血样的含量。 内容计算电路还根据实际滴下的血液样本的体积校正计算结果。