移动气体传感系统检测燃烧污染物-适用于无人机为基础的测量

M. Degner, H. Ewald
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引用次数: 5

摘要

描述了一种低成本和紧凑的移动测量燃烧气体传感器系统。该传感器利用基于led的光谱学在UV-Vis范围内进行光学吸收。燃烧过程目前是我们在现代生活中使用主要能源的一个主要基石。如果工艺、发动机、催化剂和过滤器工作不正常,则会大量排放氮氧化物(NOx)和二氧化硫(SO2)等有害气体以及颗粒。重要的是能够对这些有害排放进行易于使用和低成本的监测:应用于运输,工业,港区的抽查排放控制或燃烧装置和工业气体过滤器操作的移动功能控制。实现了一种具有成本效益的移动传感器,用于在0.1 ppm到1000 ppm的宽动态范围内测量NO2和SO2,具有高时间动态(100 msec)。此外,还包括用于粒子检测的不透明度测量仪和杂散光传感器。此外,还测量了温度、湿度和压力。所提出的传感器设计针对移动机载气体测量进行了优化。它的结构适用于免费商用1400克视频无人机。只需点击无人机下的传感器,而无人机的功能(视频,距离传感器等)不受气体传感器的影响。包括电池在内,该传感器的重量约为300克。测量数据记录在sd卡上,并通过蓝牙(如智能手机)发送给在线可视化。重量轻,紧凑,坚固和低功耗的电池供电传感器设计也可用于手持设备。此外,传感器可以很容易地修改为其他气体,如臭氧(O3)检测。
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Mobile gas sensing system for detection of combustion pollutants – suitable for drone based measurements
A low cost and compact sensor system for mobile measurements of combustion gases is described. The sensor utilizes optical absorptions in the UV-Vis range using LED-based spectroscopy. Combustion processes are currently one major cornerstone in the way we are using primary energy sources in our modern life. Harmful gases such as nitrogen oxides (NOx) and sulfur dioxide (SO2) as well as particles are emitted thereby in significant amounts if the processes, engines, catalysts and filters are not working properly. It is important to enable an easy to use and low cost monitoring of these harmful emissions: Applications are spot check emission control in transport, in industry, in harbor areas or mobile functionality control in operation of combustion devices and industrial gas filters. A cost effective mobile sensor is realized for the measurement of NO2 and SO2 in wide dynamic range from 0.1 ppm to a few 1000 ppm with high temporal dynamic (100 msec). Further an opacimeter measurement and a stray light sensor for particle detection are included. In addition temperature, humidity and pressure are measured. The presented sensor design is optimized for mobile airborne gas measurements. Its construction is adapted to a license free commercial 1400 g video drone. The sensor is simply clicked under the drone, while the drone functionalities (video, distance sensors etc.) are not influenced by the gas sensor. The sensors weight is about 300 g including its battery. The measurement data are recorded on SD-card and are send for online visualization via Bluetooth e.g. to a smartphone. The light weight, compact, robust and low power consuming battery powered sensor design can also be used in hand held devices. In addition the sensor can easily be modified for other gases such as for ozone (O3) detection.
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