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    • 31. 发明申请
    • Wearable Air Quality Monitor
    • 可穿戴空气质量监测仪
    • US20150212057A1
    • 2015-07-30
    • US14162897
    • 2014-01-24
    • Peter Darveau
    • Peter Darveau
    • G01N33/00
    • G01N33/004G01N33/0062Y02A50/243Y02A50/25
    • A wearable digital air quality monitor, which can display the exact sampling of carbon monoxide (CO) and particulate matter (PM) data, and a program capable of performing the functions of sampling, interpreting the sampled data through an interpolation function on the sensors' response curve, controlling the heating element to the exact specifications of the metal oxide sensor, and calibration. Exposed to clean air environment, the CPU controls the heating element cycle to ensure a optimum sensor sensitivity to the CO and it then calibrates the sensor. In subsequent steps, the CPU samples and averages CO data taken at a predefined 50 millisecond interval and PM2.5 at a predefined 3 second interval, then determines the amount of carbon monoxide by performing an inverse logarithmic function that follows the sensor's response curve. For PM2.5 measurements, the data is normalized to determine a total particle count per centimeter cubed (cm3) and then applies a multiplier determining the PM2.5 density. This multiplier is based on air pollution studies conducted in North America and Europe. The CO and PM2.5 measurements are displayed on a dual-line BCD display. The device also has communication interfacing capabilities providing an external link to other computers, hand-held devices such as smartphones and tablets.
    • 一种可穿戴式数字空气质量监测器,可以显示一氧化碳(CO)和颗粒物(PM)数据的精确取样,以及能够执行采样功能的程序,通过传感器的内插函数解释采样数据, 响应曲线,将加热元件控制到金属氧化物传感器的确切规格,并进行校准。 暴露在清洁空气环境中,CPU控制加热元件循环,以确保对CO的最佳传感器灵敏度,然后校准传感器。 在随后的步骤中,CPU以预定的50毫秒间隔采样并平均CO数据,并以预定义的3秒间隔对PM2.5进行平均,然后通过执行跟随传感器响应曲线的反对数函数来确定一氧化碳的量。 对于PM2.5测量,将数据归一化以确定每厘米立方厘米(cm3)的总颗粒数,然后应用确定PM2.5密度的乘数。 这种乘数是基于在北美和欧洲进行的空气污染研究。 CO和PM2.5测量显示在双线BCD显示屏上。 该设备还具有通信接口功能,提供与其他计算机的外部链接,手持设备(如智能手机和平板电脑)。
    • 38. 发明申请
    • Method for Determining the Nitrogen Dioxide Concentration in Exhaust Gases
    • 确定排气中二氧化氮浓度的方法
    • US20100293925A1
    • 2010-11-25
    • US12864189
    • 2008-12-20
    • Jochen LahrRainer Pauls
    • Jochen LahrRainer Pauls
    • F01N11/00G01M15/10
    • G01N33/0037F02D41/1461F02D41/1463G01N33/0024Y02A50/245Y02A50/25
    • In a method for determining an NO2 concentration and/or a concentration ratio of NO2 and NO in an exhaust tract of a combustion device, such as an internal combustion engine, an NOx sensor that is sensitive with respect to NO2 and NO is utilized, which provides a NOx output signal correlating with an NOx concentration representing the sum of the concentrations of NO2 and NO. In order to determine the NO2 concentration and/or the concentration ratio of NO2 and NO, the NOx output signal of a first NOx sensor, which is arranged upstream of an exhaust gas treatment element arranged in the exhaust tract and having the capability of converting NO to NO2 and/or converting NO2 to NO, is compared to the NOx output signal of a second NOx sensor, which is disposed downstream of the exhaust gas treatment element.
    • 在用于确定诸如内燃机的燃烧装置的排气管中的NO 2浓度和/或NO 2和NO的浓度比的方法中,使用对NO2和NO敏感的NOx传感器,其中 提供与表示NO2和NO的浓度之和的NOx浓度相关的NOx输出信号。 为了确定NO 2浓度和/或NO 2和NO的浓度比,第一NOx传感器的NOx输出信号,其布置在排气管中的废气处理元件的上游并具有转换NO 与NO 2和/或将NO 2转化为NO的比例与排列在废气处理元件下游的第二NOx传感器的NOx输出信号进行比较。
    • 40. 发明授权
    • Dust mitigation and surface cleaning system for maintaining a surface free from dust and other materials
    • 防尘和表面清洁系统,用于保持表面没有灰尘和其他材料
    • US07584521B2
    • 2009-09-08
    • US11312489
    • 2005-12-21
    • Clarence T. LobbWilliam T. KornkeWayne T. Armstrong
    • Clarence T. LobbWilliam T. KornkeWayne T. Armstrong
    • F23J3/02
    • B60H1/30B60H1/00414B60P3/005F24F2110/64G01N21/15G01N2021/151Y02A50/25
    • A dust mitigation and cleaning system for cleaning a surface includes a system housing secured around at least a portion of a section including the surface to be cleaned. The system housing includes a hollow member extending within the system housing toward and in general alignment with the surface to be cleaned, where an outlet of the system housing is defined by the hollow member. A duct section is secured to a portion of the system housing and includes an inlet to receive a gaseous fluid, such as air from an ambient environment in which the system is disposed, and an outlet in communication with the system housing. The system further includes a pressure generator disposed within the duct section, where operation of the fan generates a pressure differential between an interior portion of the system housing and the ambient environment such that gaseous fluid drawn into the system housing via the duct section is removed from the interior portion of the system housing via the outlet defined by the hollow member. In an exemplary embodiment, the system is disposed within a motorized vehicle to maintain a sensor window used with optical equipment clean during system operations.
    • 用于清洁表面的防尘和清洁系统包括围绕包括待清洁表面的部分的至少一部分固定的系统壳体。 系统壳体包括在系​​统壳体内延伸并与待清洁表面大致对准的中空构件,其中系统壳体的出口由中空构件限定。 管道部分被固定到系统壳体的一部分,并且包括用于接收气态流体的入口,例如来自系统设置的周围环境的空气,以及与系统壳体连通的出口。 该系统还包括设置在管道部分内的压力发生器,其中风扇的操作在系统壳体的内部部分与周围环境之间产生压力差,使得经由管道部分吸入系统壳体的气体流体被从 经由由中空构件限定的出口的系统壳体的内部。 在示例性实施例中,系统设置在机动车辆内,以在系统操作期间保持与光学设备一起使用的传感器窗口。