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    • 39. 发明申请
    • Chemical vapor sensor having an active and a passive measurement mode
    • 具有主动和被动测量模式的化学气相传感器
    • US20120152638A1
    • 2012-06-21
    • US11903141
    • 2007-09-20
    • Michel F. SultanDavid K. Lambert
    • Michel F. SultanDavid K. Lambert
    • B60K28/06G01N21/59G01J5/10
    • B60K28/063B60K28/06B60K28/066B60W2540/24G01N21/3504G01N21/61G01N33/4972Y10T436/11Y10T436/117497Y10T436/25Y10T436/255Y10T436/25875
    • A chemical vapor sensor is provided that measures a chemical species of interest with high sensitivity and chemical specificity. In an aspect, an ethanol vapor sensor is provided, sized for being inconspicuous and on-board a vehicle, having a passive measurement mode and an active breathalyzer mode, for detecting a motor vehicle driver that exceeds a legal limit of blood alcohol concentration (BAC), for use with vehicle safety systems. For the passive mode, a vapor concentrator is utilized to amplify a sampled vapor concentration to a detectible level for use with an infrared (IR) detector. In an aspect, ethanol vapor in a vehicle cabin is passively measured and if a predetermined ethanol level is measured, a countermeasure is invoked to improve safety. In an aspect, an active breathalyzer is used as a countermeasure. The active breathalyzer can be imposed for a number of vehicle trips or for a predetermined time period.
    • 提供一种化学气相传感器,以高灵敏度和化学特性测量感兴趣的化学物质。 在一方面,提供了一种乙醇蒸气传感器,其尺寸适于不显眼和车载车辆,具有被动测量模式和主动呼气机模式,用于检测超过血液酒精浓度合法限度的汽车驾驶员(BAC ),用于车辆安全系统。 对于被动模式,使用蒸气浓缩器将采样的蒸汽浓度放大到可用于红外(IR)检测器的可检测水平。 一方面,被动地测量车厢内的乙醇蒸汽,如果测量到预定的乙醇水平,则调用对策以提高安全性。 在一方面,使用活性呼气机作为对策。 主动呼吸机可以施加一些车辆行驶或预定的时间段。