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    • 72. 发明申请
    • METHOD FOR DETECTING FAULTY LIQUID LEVEL SENSORS
    • 检测故障液位传感器的方法
    • WO0244657A3
    • 2003-03-20
    • PCT/US0144873
    • 2001-11-29
    • CLARK RELIANCE CORPCOLMAN MARK ALEE THOMAS
    • COLMAN MARK ALEE THOMAS
    • G01F23/00G01F23/24G01F25/00
    • G01F25/0076G01F23/0046G01F23/0076G01F23/241
    • The present invention provides a method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers. A liquid level indicator and controller in which one embodiment of the present invention operates includes a control unit for controlling the other components of the liquid level indicator and controller, sensors electrically connected to the control unit for sensing the level of a liquid in a vessel, and an indicating device electrically connected to the control unit for displaying the liquid level. The control unit includes a monitor and a fault detector. In operation, the liquid level indicator and controller has two (2) basic modes. The first mode is a monitor mode. In this mode, the liquid level indicator and controller, under the control of the monitor, senses the liquid level in the vessel using the sensors and displays the liquid level on the indicating device. The second mode is a fault detection mode. In this mode, the liquid level indicator and controller, under the control of the fault detector, detects and cross-checks faulty sensors. If a faulty sensor is detected, the liquid level indicator and controller determines the type of fault, i.e., whether the sensor is open or shorted.
    • 本发明提供了用于检测和交叉检查液位指示器和控制器中的故障传感器的方法和系统。 液位指示器和控制器,其中本发明的一个实施例操作包括用于控制液位指示器和控制器的其他部件的控制单元,电连接到控制单元的传感器,用于感测容器中液体的液位, 以及电连接到所述控制单元以用于显示所述液位的指示装置。 控制单元包括监视器和故障检测器。 在操作中,液位指示器和控制器具有两种基本模式。 第一种模式是监视模式。 在这种模式下,液位指示器和控制器在监视器的控制下,使用传感器检测船上的液位,并将液位显示在指示装置上。 第二种模式是故障检测模式。 在这种模式下,液位指示器和控制器在故障检测器的控制下,检测和交叉检查故障传感器。 如果检测到故障传感器,则液位指示器和控制器确定故障类型,即传感器是打开还是短路。
    • 76. 发明申请
    • METHOD OF, AND APPARATUS FOR, PROVIDING A GAS MIXTURE
    • 提供气体混合物的方法和装置
    • WO2013174960A1
    • 2013-11-28
    • PCT/EP2013/060692
    • 2013-05-23
    • AIR PRODUCTS AND CHEMICALS, INC.DOWNIE, Neil, AlexanderLEE, Thomas, David, Matthew
    • DOWNIE, Neil, AlexanderLEE, Thomas, David, Matthew
    • G05D11/13B01F3/02
    • G05D11/02B01F3/028B01F15/0216B01F15/026B01F15/0425B01F15/0429G05B15/00G05D11/137G05D11/139
    • There is provided a gas mixer arrangement comprising a first gas source for supplying a first gas; a second gas source for supplying a second gas different from said first gas; first and second flow regulation devices for regulating the respective flow of the first gas and second gases from the first and second gas sources; a mixer;and an outlet. The mixer is located downstream of the first and second flow regulation devices and arranged, in use, to mix the first and second gases to provide a mixed gas to the outlet. The gas mixer arrangement further comprises a meter comprising a first sensor assembly operable to determine the average molecular weight of the mixed gas and including a high-frequency planar piezoelectric crystal oscillator in contact with the mixed gas, a second sensor assembly operable to determine the pressure of the gas downstream of one of the first or second flow regulation devices, and a controller operable, in response to the average molecular weight of the mixed gas and said gas pressure, to control automatically said first and second flow regulation devices to control the relative proportion of the first and second gases in said mixed gas and the pressure or mass flow rate of the mixed gas from the outlet.
    • 提供了一种气体混合器装置,包括用于供应第一气体的第一气体源; 用于供应与所述第一气体不同的第二气体的第二气体源; 第一和第二流量调节装置,用于调节来自第一和第二气体源的第一气体和第二气体的相应流量; 混合器和出口。 混合器位于第一和第二流量调节装置的下游,并且在使用中布置以混合第一和第二气体以向出口提供混合气体。 气体混合器装置还包括仪表,其包括第一传感器组件,其可操作以确定混合气体的平均分子量,并且包括与混合气体接触的高频平面压电晶体振荡器,可操作以确定压力的第二传感器组件 的第一或第二流量调节装置中的一个的下游的气体,以及响应于混合气体和所述气体压力的平均分子量而可操作地控制所述第一和第二流量调节装置来控制相对 所述混合气体中的第一和第二气体的比例以及来自出口的混合气体的压力或质量流量。
    • 80. 发明申请
    • METHOD AND APPARATUS FOR DEMONSTRATION AND DETERMINATION OF MATERIAL DISPERSION IN OPTICAL FIBER
    • 用于光纤中材料分散的演示和确定的方法和装置
    • WO2011042911A3
    • 2012-05-24
    • PCT/IN2009000595
    • 2009-10-20
    • MEHTA HITESHVARADHAN VENKATESHLEE THOMAS
    • MEHTA HITESHVARADHAN VENKATESHLEE THOMAS
    • G02B6/00G01M11/00
    • G01M11/335G01M11/332G01M11/338
    • The present invention provides an apparatus (101) for demonstration and determination of material dispersion in an optical fiber comprising a plurality of light sources (102 a, 102 b) for providing a plurality of signals in form of pulse trains (! 10 a, 110 b), a coupling device (103) for coupling the plurality of signals in form of pulse trains, a de-coupling device ( 105) for decoupling the plurality of signals, in form of pulse trains, a plurality of detection units (106 a, 106 b) for detection of the decoupled plurality of signals, in form of pulse trains, a device (107) for determining the time delay between arrival of plurality of signals form of pulse trains, at the detection unit ( 106 a, 106 b), a device for displaying the plurality of signals in form of pulse trains (107), a microprocessor (108) and a plurality of optical fiber patch cords for connecting various above devices, wherein a length of optical fiber (104 b) is provided whose material dispersion is to be demonstrated and determined. A method of demonstrating and determining material dispersion of optical fiber using said a apparatus (101) is also disclosed.
    • 本发明提供了一种用于演示和确定光纤中的材料色散的装置(101),其包括多个光源(102a,102b),用于提供脉冲序列形式的多个信号(!10a,110 b),用于以脉冲串的形式耦合多个信号的耦合装置(103),用于以脉冲串形式去耦合多个信号的解耦装置(105),多个检测单元(106a ,106b),用于以脉冲串的形式检测解耦的多个信号,用于在检测单元(106a,106b)处确定多个信号形式的脉冲串之间的时间延迟的装置(107) ),用于以脉冲串(107)的形式显示多个信号的装置,用于连接各种以上装置的微处理器(108)和多个光纤跳线,其中提供光纤长度(104b) 其材料分散体将展现出来 d并确定。 还公开了使用所述设备(101)来演示和确定光纤的材料色散的方法。