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18 条记录 (耗时 0.075 秒)

    Electrode system for a parallel plate dielectric analyzer
    4.
    发明授权
    Electrode system for a parallel plate dielectric analyzer 失效
    用于平行平板介质分析仪的电极系统

    公开(公告)号：US4899102A

    公开(公告)日：1990-02-06

    申请号：US337131

    申请日：1989-04-12

    申请人： Kendall B. Hendrick ,  John R. Reader, Jr.

    发明人： Kendall B. Hendrick ,  John R. Reader, Jr.

    IPC分类号： G01B7/14 ,  G01N27/22 ,  G01R27/26

    CPC分类号： G01N27/226 ,  G01B7/14 ,  G01R27/2605

    摘要： A parallel plate dielectric analyzer is disclosed including:(a) a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and means responsive to the distance sensor for positioning the electrodes;(b) a force transducer for measuring the applied force on the sample and means responsive to the force transducer to give a desired force by varying the electrode spacing;(c) disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and(d) a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and means to measure the resistance across the platinum ring.

    摘要翻译： 公开了一种平行平板介质分析仪，包括：（a）用于精确测量诸如线性电压差动变压器（LVDT）的电极之间的变化距离的距离传感器，以及响应于距离传感器定位电极的装置; （b）用于测量样品上施加的力的力传感器和响应于力传感器的装置，通过改变电极间距来产生所需的力; （c）使用厚膜技术制成的一次性电极，该陶瓷衬底具有粘附在其表面上的导体; 和（d）内置于一个电极中的温度传感器，例如附着在一个电极的表面上的铂环，以及测量铂环上的电阻的装置。

    Parallel plate dielectric analyzer
    5.
    发明授权
    Parallel plate dielectric analyzer 失效
    平行平板介质分析仪

    公开(公告)号：US4855667A

    公开(公告)日：1989-08-08

    申请号：US206092

    申请日：1988-06-13

    申请人： Kendall B. Hendrick ,  John R. Reader, Jr.

    发明人： Kendall B. Hendrick ,  John R. Reader, Jr.

    IPC分类号： G01B7/14 ,  G01N27/22 ,  G01R27/26

    CPC分类号： G01B7/14 ,  G01N27/226 ,  G01R27/2605

    摘要： A parallel plate dielectric analyzer is disclosed including: a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and a motor responsive to the distance sensor for positioning the electrodes; a force transducer for measuring the applied force on the sample and where the motor responsive to the distance sensor is also responsive to the force transducer to give a desired force by varying the electrode spacing; disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and means to measure the resistance across the platinum ring.

    Planar interdigitated dielectric sensor
    10.
    发明授权
    Planar interdigitated dielectric sensor 失效
    平面交叉介质传感器

    公开(公告)号：US5045798A

    公开(公告)日：1991-09-03

    申请号：US472412

    申请日：1990-01-24

    申请人： Kendall B. Hendrick

    发明人： Kendall B. Hendrick

    IPC分类号： G01R27/26

    CPC分类号： G01R27/2635

    摘要： A planar interdigitated dielectric sensor useful for measuring the surface properties of a material is disclosed. The sensor is formed on an insulating substrate. Attached to the surface of the substrate is an excitation and response electrode disposed in an interdigitated pectinate configuration. Filling the space between the electrodes is an insulating material of known dielectric properties. The upper surface of the electrodes are generally coplanar with respect to the insulating material between the electrodes thus forming a flat upper surface on the sensor. This flat upper surface serves to eliminate air gaps between the sensor surface and sample when analyzing relatively viscous materials.

    摘要翻译： 公开了一种用于测量材料的表面性质的平面交错介质传感器。 传感器形成在绝缘基板上。 附着于基板表面的激励和响应电极设置成交错的果胶构造。 填充电极之间的空间是已知介电特性的绝缘材料。 电极的上表面相对于电极之间的绝缘材料大致共面，从而在传感器上形成平坦的上表面。 当分析相对粘稠的材料时，该平坦的上表面用于消除传感器表面和样品之间的气隙。