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    • 6. 发明授权
    • Sensor system with close-loop-adsorption circulation
    • 具有闭环吸附循环的传感器系统
    • US08650932B2
    • 2014-02-18
    • US13122997
    • 2009-10-15
    • Shou-Hua Zhang
    • Shou-Hua Zhang
    • G01N33/00
    • G01N33/0029
    • A detection and identification system includes a sensor unit (100) having a sensor array that detects and identifies at least one chemical included in an air flow. The system also includes a pump (120) that drives the air flow through the detection and identification system, in which the pump receives the air flow that has passed out of the sensor unit. The system further includes an adsorption unit (130) that dries and cleans the air flow within the detection and identification system, to obtain a substantially dry and clean air flow, in which the adsorption unit receives the air flow that has passed out of the pump. The system also includes at least one valve (140) that receives the substantially dry and clean air flow that has passed through the adsorption unit. The valve provides the substantially dry and clean air flow to the sensor unit in a close-loop circulation operation to thereby clean a sensor array. The system receives input air from an external environment and then to the sensor unit, and provides exhaust air out to the external environment, in an open-loop flow operation of the detection and identification system in which the input air sample is analyzed and identified.
    • 检测和识别系统包括具有传感器阵列的传感器单元(100),该传感器阵列检测并识别包含在空气流中的至少一种化学物质。 该系统还包括驱动通过检测和识别系统的空气流的泵(120),其中泵接收已经从传感器单元传出的空气流。 该系统还包括吸收单元(130),该吸附单元干燥和清洁检测和识别系统内的空气流,以获得基本上干燥和清洁的空气流,其中吸附单元接收已经从泵抽出的空气流 。 该系统还包括至少一个阀(140),其接收已经通过吸附单元的基本干燥且清洁的空气流。 该阀在闭环循环操作中向传感器单元提供基本干燥且清洁的空气流,从而清洁传感器阵列。 该系统从外部环境接收输入空气,然后从传感器单元接收输入空气,并在其中分析和识别输入空气样本的检测和识别系统的开环流动操作中向外部环境提供排气。