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    • 5. 发明申请
    • Photoelectric switch
    • 光电开关
    • US20080173797A1
    • 2008-07-24
    • US11655632
    • 2007-01-19
    • William C. SanfordHenry V. FletcherTrevor M. Laib
    • William C. SanfordHenry V. FletcherTrevor M. Laib
    • H03K17/78
    • H03K17/968H03K17/78
    • A photoelectric switch is disclosed. An illustrative embodiment of the photoelectric switch includes at least one light source, a reflective surface provided in light-receiving relationship with respect to the at least one light source, a release button engaging the reflective surface and positional between first and second positions, a photocell provided in light-receiving relationship with respect to the reflective surface when the release button is disposed in the first position, a latch control circuit connected to the photocell and a latch connected to the latch control circuit. The light path incorporates a collimator to restrict operation of the system to the relationship of the light source and the retroreflector.
    • 公开了一种光电开关。 光电开关的说明性实施例包括至少一个光源,相对于至少一个光源以光接收关系提供的反射表面,接合反射表面的释放按钮以及位于第一和第二位置之间的光电元件 当释放按钮被布置在第一位置时,以相对于反射表面的光接收关系提供,与光电管连接的锁存控制电路和连接到锁存器控制电路的锁存器。 光路包括准直器,以限制系统的操作与光源和后向反射器的关系。
    • 7. 发明授权
    • Beam type hardness tester for elastomeric material and method of testing
    • 用于弹性体材料的梁型硬度计和测试方法
    • US4182192A
    • 1980-01-08
    • US946772
    • 1978-09-28
    • George A. ArgabriteWilliam C. Sanford
    • George A. ArgabriteWilliam C. Sanford
    • G01N3/14G01N3/40
    • G01N3/40G01N3/14G01N2203/0033
    • An apparatus for testing hardness of elastomeric material comprising a pivotally mounted beam assembly for measuring deformation of the material when a calibrated mass is applied thereto. A horizontal anvil member supports the material being tested which is selectively positioned on the anvil member in accordance with a cross-sectional dimension of the material. The calibrated mass or weight is slidably positioned on the beam assembly also in correlation with said dimension. A measuring gauge measures the beam assembly when the test material is gripped between the beam assembly and anvil member, and indicates hardness on a scale correlated to the measured cross-sectional dimension of the material. The gauge and a lateral extension of the beam assembly are magnetically coupled. A method of measuring hardness of elastomeric material including the steps of measuring an unstressed dimension of the material, imposing on the sample material an amount of compressive force determined by the unstressed dimension, and measuring the amount of deformation of the sample.
    • 一种用于测试弹性体材料的硬度的装置,包括一个可枢转安装的梁组件,用于在校准的质量被施加到其上时测量材料的变形。 水平砧构件根据材料的横截面尺寸支撑被测试材料,其被选择性地定位在砧座构件上。 校准的质量或重量也可以与所述尺寸相关联地滑动地定位在梁组件上。 当测量材料被夹持在梁组件和砧构件之间时,测量计测量梁组件,并且指示与所测量的材料横截面尺寸相关的尺度的硬度。 光束组件的量规和横向延伸是磁耦合的。 一种测量弹性体材料的硬度的方法,包括以下步骤:测量材料的不受应力的尺寸,对样品材料施加一定量的由无应力尺寸确定的压缩力,并测量样品的变形量。