Control valve unit for a hydraulic servo motor for a control valve of a
turbine
    1.
    发明授权
    Control valve unit for a hydraulic servo motor for a control valve of a turbine 失效
    用于涡轮机控制阀的液压伺服电机的控制阀单元

    公开(公告)号:US4025222A

    公开(公告)日:1977-05-24

    申请号:US630310

    申请日:1975-11-10

    IPC分类号: F01D17/26 F01D21/18 F01D17/04

    CPC分类号: F01D17/26 F01D21/18

    摘要: A valve system for controlling the flow of hydraulic fluid for opening and closing the main control valve for a turbine system. The valve system comprises: first valve means for passing hydraulic fluid to the servo motor to maintain the control valve open during normal operating conditions of the turbine and to interrupt the supply of hydraulic fluid in response to a predetermined normal pressure drop; second valve means for draining hydraulic fluid from the servo motor to close the control valve in response to a predetermined normal pressure drop in the turbine system; and third valve means for separately draining hydraulic fluid from the servo motor to relieve the latter of pressure rapidly in response to an abnormal pressure drop in the turbine system with consequent rapid closing of the control valve.

    摘要翻译: 一种用于控制用于打开和关闭用于涡轮机系统的主控制阀的液压流体流动的阀系统。 阀系统包括:第一阀装置,用于将液压流体传递到伺服电动机,以在涡轮机的正常操作条件期间保持控制阀打开,并响应于预定的正常压降中断供应液压流体; 第二阀装置,用于排出来自伺服电动机的液压流体,以响应于涡轮机系统中的预定正常压降而关闭控制阀; 以及第三阀装置,用于单独排出来自伺服电动机的液压流体,以响应于涡轮机系统中的异常压降而快速释放压力,从而快速关闭控制阀。

    Method of measuring a capacitance
    2.
    发明授权
    Method of measuring a capacitance 有权
    测量电容的方法

    公开(公告)号:US09304096B2

    公开(公告)日:2016-04-05

    申请号:US13882641

    申请日:2011-10-31

    摘要: A method of measuring a capacitance (C) of a sensor having a working electrode that is coated by an insulating layer and a ligand forming an affinity surface. The method involves the steps of bringing the electrode into contact with an analyte, supplying a constant first current (I1), and a constant second current (I2) of opposite direction to the first current (I1), and a constant third current (I3) of same direction as the first current (I1) during determined time periods to the sensor. Further the method includes sampling the potential (V) built up across the sensor, and calculating the capacitance of the sensor from the inclination (B, D, F, H) of a potential curve received in response to the current supply. A method used for detection of an interaction between a ligand and an analyte is also disclosed.

    摘要翻译: 一种测量具有由绝缘层涂覆的工作电极和形成亲和表面的配体的传感器的电容(C)的方法。 该方法包括使电极与分析物接触的步骤,提供与第一电流(I1)相反方向的恒定的第一电流(I1)和恒定的第二电流(I2),以及恒定的第三电流(I3 )与在传感器确定的时间段期间的与第一电流(I1)相同的方向。 此外,该方法包括对跨传感器建立的电位(V)进行采样,以及响应于当前电源接收的电位曲线的倾斜度(B,D,F,H)计算传感器的电容。 还公开了用于检测配体和分析物之间相互作用的方法。

    METHOD OF MEASURING A CAPACITANCE
    3.
    发明申请
    METHOD OF MEASURING A CAPACITANCE 有权
    测量电容的方法

    公开(公告)号:US20130304397A1

    公开(公告)日:2013-11-14

    申请号:US13882641

    申请日:2011-10-31

    IPC分类号: G01N27/22 G01R27/26

    摘要: A method of measuring a capacitance (C) of a sensor having a working electrode that is coated by an insulating layer and a ligand forming an affinity surface. The method involves the steps of bringing the electrode into contact with an analyte, supplying a constant first current (I1), and a constant second current (I2) of opposite direction to the first current (I1), and a constant third current (I3) of same direction as the first current (I1) during determined time periods to the sensor. Further the method includes sampling the potential (V) built up across the sensor, and calculating the capacitance of the sensor from the inclination (B, D, F, H) of a potential curve received in response to the current supply. A method used for detection of an interaction between a ligand and an analyte is also disclosed.

    摘要翻译: 一种测量具有由绝缘层涂覆的工作电极和形成亲和表面的配体的传感器的电容(C)的方法。 该方法包括使电极与分析物接触的步骤,提供与第一电流(I1)相反方向的恒定的第一电流(I1)和恒定的第二电流(I2),以及恒定的第三电流(I3 )与在传感器确定的时间段期间的与第一电流(I1)相同的方向。 此外,该方法包括对跨传感器建立的电位(V)进行采样,以及响应于当前电源接收的电位曲线的倾斜度(B,D,F,H)计算传感器的电容。 还公开了用于检测配体和分析物之间相互作用的方法。