公开(公告)号：US5376163A

公开(公告)日：1994-12-27

申请号：US63151

申请日：1993-05-18

申请人： Lee R. Carlson ,  Eric L. Kewley ,  Mahmoud Janbakhsh ,  Diane M. Battilana

发明人： Lee R. Carlson ,  Eric L. Kewley ,  Mahmoud Janbakhsh ,  Diane M. Battilana

IPC分类号： B01D46/44 ,  G01N1/22 ,  G01N1/24 ,  G01N33/00 ,  B01D29/00 ,  B01D35/01

CPC分类号： B01D46/10 ,  B01D46/44 ,  G01N1/2247 ,  G01N33/0014 ,  G01N33/0016 ,  G01N1/24 ,  G01N2001/225 ,  G01N2001/2267

摘要： A method and system are described for preventing flooding of a gas analyzer of the type wherein a pump conveys gas to be analyzed to a sample cell and a filter separates water from the gas flowing to the pump. The presence of excess liquid in the system is sensed by a pressure transducer which decouples the output of the pump from the sample cell and feeds it back to the filter. This results in an increase in pressure in the filter to prevent excess liquid from flooding the gas analyzer. The pressure is so held until the excess liquid passes from the filter system, after which the system returns to normal operation.

摘要翻译： 描述了一种用于防止这种类型的气体分析器的溢流的方法和系统，其中泵将要分析的气体输送到样品池，并且过滤器将水与流入泵的气体分离。 通过压力传感器检测系统中多余液体的存在，压力传感器使泵的输出与样品池分离并将其反馈回过滤器。 这导致过滤器中的压力增加，以防止多余的液体溢出气体分析器。 压力被保持直到多余的液体从过滤系统通过，之后系统恢复正常运行。

公开(公告)号：US5582797A

公开(公告)日：1996-12-10

申请号：US396931

申请日：1995-03-01

申请人： Eric L. Kewley ,  Joseph D. Bisby

发明人： Eric L. Kewley ,  Joseph D. Bisby

IPC分类号： G01N27/409 ,  F02D35/00 ,  G01N27/00 ,  G01N33/00 ,  G01N27/26

CPC分类号： G01N33/0009

摘要： An improved sensor support subassembly for a chemical sensor in the testing of gaseous emissions. The sensor support subassembly of the present invention comprises means for slideably engaging a sensor unit with a gas intake manifold block. The sensor unit comprises a cylindrical base which forms the inlet to the sensor. The manifold block comprises a gas intake means, a gas channel and a U-shaped slot for slideably engaging the sensor unit's cylindrical base within the manifold block such that an air-tight passage is formed between the sensor inlet and the gas channel. The sensor support subassembly also provides a sealing means for ensuring an air-tight seal between the sensor unit and the manifold block. This slidable engagement scheme allows the sensor unit to be rotated about the axis of the cylindrical base, which in turn facilitates the use of a card-edge connector for making the electronic connections between the sensor and the sensor testing system power and data lines.

摘要翻译： 用于化学传感器在气体排放测试中的改进的传感器支撑子组件。 本发明的传感器支撑子组件包括用于将传感器单元与进气歧管块滑动接合的装置。 传感器单元包括形成传感器入口的圆柱形基座。 歧管块包括气体进入装置，气体通道和U形槽，用于可滑动地接合歧管块内的传感器单元的圆柱形基座，使得在传感器入口和气体通道之间形成气密通道。 传感器支撑子组件还提供用于确保传感器单元和歧管块之间的气密密封的密封装置。 这种可滑动的接合方案允许传感器单元围绕圆柱形基座的轴线旋转，这进而有利于使用卡缘连接器来进行传感器和传感器测试系统电源和数据线之间的电子连接。