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公开(公告)号：US4583466A
公开(公告)日：1986-04-22
申请号：US440091
申请日：1982-11-08
CPC分类号： B61D23/02 , A61G3/062 , A61G3/068 , B61D23/025 , A61G2220/12 , Y10S414/134
摘要： Apparatus for railway cars to handle the ingress and egress of passengers through a door opening where the apparatus selectively provides at the exterior of the car at the door opening an adjustable height platform, steps or a ground-to-car floor platform lift. The apparatus is storable within the railway car and extendable exteriorly of the railway car where it can then be selectively conditioned for a desired passenger handling mode as a platform positioned at a desired height between the car floor and ground, a series of steps extending between the car floor and ground, or a platform lift movable between ground level and car floor level.
摘要翻译： 用于铁路车辆的装置，用于通过门开口处理乘客的入口和出口，其中设备在门打开处选择性地在汽车的外部提供可调节的高度平台，台阶或地面对车厢平台升降机。 该设备可存储在铁路车辆内并可在铁路车辆的外部延伸，然后可将其选择性地调节为期望的乘客处理模式，作为位于轿厢地板和地面之间所需高度的平台，一系列步骤在 汽车地板和地面，或平台升降机，可在地面和地板之间移动。
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公开(公告)号：US06495012B1
公开(公告)日：2002-12-17
申请号：US09541358
申请日：2000-03-31
IPC分类号： G01N27401
CPC分类号： G01N27/401 , G01N27/301 , G01N27/36
摘要： The invention provides a sensor with a reference electrode and a flowing electrolyte which is particularly useful for measuring the ion concentration of a process solution. The invention includes a sensor having a pressurized reservoir which provides flow of an electrolyte, a non-metallic solution ground and a resistance temperature device bonded to a non-metallic solution ground. The invention provides sensors with greater accuracy and stability by minimizing or eliminating ingress of contaminants from a process solution through the external junction of the sensor.
摘要翻译： 本发明提供了具有参考电极和流动电解质的传感器，其特别可用于测量处理溶液的离子浓度。 本发明包括具有加压储存器的传感器，其提供电解质的流动，非金属溶液接地和结合到非金属溶液接地的电阻温度装置。 本发明通过最小化或消除来自处理溶液的污染物通过传感器的外部接点来提供具有更高精度和稳定性的传感器。
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公开(公告)号：US06425995B1
公开(公告)日：2002-07-30
申请号：US09541358
申请日：2000-03-31
IPC分类号： G01N27401
摘要： The invention provides a sensor with a reference electrode and a flowing electrolyte which is particularly useful for measuring the ion concentration of a process solution. The invention includes a sensor having a pressurized reservoir which provides flow of an electrolyte, a non-metallic solution ground and a resistance temperature device bonded to a non-metallic solution ground. The invention provides sensors with greater accuracy and stability by minimizing or eliminating ingress of contaminants from a process solution through the external junction of the sensor.
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4.发明授权
公开(公告)号：US4496433A
公开(公告)日：1985-01-29
申请号：US566345
申请日：1983-12-28
IPC分类号： G01N27/406 , G01N30/64 , G01N33/00 , G01N27/58 , G01N31/08
CPC分类号： G01N30/64 , G01N27/4065 , G01N33/0013
摘要： A gas chromatograph for measuring the amounts of selected sample gas components such as oxygen and carbon monoxide. The system comprises a high-temperature (600.degree. C.) zirconia cell detector supplied on one side with a continuous stream of oxygen flowing at a constant rate. A voltage source connected to the zirconia cell transports all of this oxygen to the other side of the cell, resulting in a constant background cell current. Sample components from the chromatographic column are injected sequentially into the oxygen stream. When oxygen is injected the cell current increases due to the increase in total oxygen available for transport through the cell. When carbon monoxide is injected, it is fully combusted with the oxygen, and the current correspondingly decreases due to reduction of the oxygen available for transport. The deviation in cell current with reference to the background current is integrated for each component to produce output signals indicating the amount of the component.
摘要翻译： 用于测量所选样品气体组分如氧气和一氧化碳的量的气相色谱仪。 该系统包括在一侧提供的以恒定速率流动的连续氧气流的高温（600℃）氧化锆电池检测器。 连接到氧化锆电池的电压源将所有这些氧传递到电池的另一侧，导致恒定的背景电池电流。 色谱柱中的样品组分依次注入氧气流中。 当注入氧气时，由于可用于运输通过电池的总氧气的增加，电池电流增加。 当注入一氧化碳时，其与氧完全燃烧，并且由于可用于运输的氧气的减少，电流相应地降低。 参考背景电流的单元电流的偏差针对每个分量进行积分，以产生表示组件数量的输出信号。
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公开(公告)号：US5423963A
公开(公告)日：1995-06-13
申请号：US269346
申请日：1994-06-30
IPC分类号： G01N27/416 , G01N27/26
CPC分类号： G01N27/4163
摘要： A level of a chemical in a fluid is accurately measured by an analyzer having an electrode assembly separated from the fluid by a membrane. The electrode assembly is energized to provide a steady state signal and a pulsed signal, both of which indicate the level of chemical in the fluid, but with only the pulsed signal being substantially unaffected by fouling of the membrane. The pulsed signal and the steady state signal are used to determine a predicted value that the steady state signal will have in the absence of fouling. The predicted value is then used to correct the steady state current to compensate for fouling of the membrane.
摘要翻译： 通过具有通过膜与流体分离的电极组件的分析器精确地测量流体中的化学物质的水平。 电极组件通电以提供稳态信号和脉冲信号，两者都表示流体中的化学物质的水平，但仅脉冲信号基本上不受膜的结垢的影响。 脉冲信号和稳态信号用于确定在没有结垢的情况下稳态信号将具有的预测值。 然后将预测值用于校正稳态电流以补偿膜的结垢。
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公开(公告)号：US5326447A
公开(公告)日：1994-07-05
申请号：US954395
申请日：1992-09-30
申请人： Kenneth S. Fletcher
发明人： Kenneth S. Fletcher
IPC分类号： G01N27/416 , G01N27/26
CPC分类号： G01N27/4163
摘要： An analyzer for detecting a selected chemical (such as oxygen) in a process fluid includes a plurality of electrodes that are separated from the fluid by a membrane that is permeable to the selected chemical, each of the electrodes when energized producing a signal in response to the selected chemical in the fluid. The selected chemical level in the process fluid is determined based on the signal produced by a first one of the electrodes, and the determined level is used with the signal produced by a second one of the electrodes to detect whether the membrane has become faulty (e.g., fouled by materials in the process fluid).
摘要翻译： 用于检测过程流体中所选择的化学物质（例如氧气）的分析器包括多个电极，其通过可选择化学物质可渗透的膜与流体分离，每个电极在通电时产生响应于 所选化学物质在流体中。 基于由第一个电极产生的信号确定过程流体中所选择的化学物质水平，并且所确定的水平与由第二个电极产生的信号一起使用以检测膜是否变得有缺陷（例如， ，被过程流体中的物质污染）。
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