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    • 5. 发明授权
    • Method and apparatus to measure particulate matter in gas
    • 测量气体中颗粒物质的方法和装置
    • US5571945A
    • 1996-11-05
    • US403321
    • 1995-03-13
    • Petros KoutrakisPeng-Yau WangJack M. WolfsonConstantinos Sioutas
    • Petros KoutrakisPeng-Yau WangJack M. WolfsonConstantinos Sioutas
    • G01N1/02G01N15/06
    • G01N15/0618
    • Apparatus for measuring the amount of particulate matter in a gas having a gas supply, a first particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply, and a second particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply. Gas from the gas supply to the second particular matter collector is passed through a particle remover to remove particulate matter prior to contact of gas from the gas supply with the second particulate matter collector. A pressure sensor is provided to measure differential pressure between the first particulate matter collector and the second particulate matter collector, and at least one pump to cause gas to pass from the gas supply to the first particulate matter collector and the second particulate matter collector.
    • 用于测量具有气体供应的气体中的颗粒物质的量的装置,在气体供应器下游并与气体供应气体连通的第一颗粒物质收集器,以及在气体供应器和气体通路下游的第二颗粒物质收集器 与气体供应。 在气体供应与第二颗粒物收集器接触之前,从气体供应到第二特定物质收集器的气体通过颗粒去除器去除颗粒物质。 提供压力传感器来测量第一颗粒物质收集器和第二颗粒物质收集器之间的压差,以及至少一个泵,以使气体从气体供应通过到第一颗粒物质收集器和第二颗粒物质收集器。