Low-cost Personal Sampling Pump

好了！ 项目摘要 暴露在颗粒物(PM)空气污染中是导致早产儿疾病和死亡的第五大原因 地球和全球疾病负担的头号环境风险因素(构成更大的 危险超过所有其他环境风险因素的总和)。 尽管需求(和需求)不断增长，但评估个人接触PM的最新技术是基于 几十年前的技术是低效、繁重和昂贵的。这些造成的身体负担 显示器(噪音、视觉美感和重量)使它们很难佩戴。这些监视器的成本也 在与流行病学研究和职业相关的范围内防止空气污染暴露监测 危险监控。这项第二阶段的计划将开发一种新颖、轻便和 基于超声波压电泵模块的廉价个性化采样技术。这个 超声波个人气溶胶采样器(Upas)有可能获得广泛的空气污染份额。 监控市场。AST建议将这种采样器开发成廉价的商业原型 (&lt；200美元规模的材料成本)，提供时间集成(基于过滤器)和实时测量， 准确(流量控制和PM采样效率在参考值的4%以内)、紧凑、轻便(200克)、 提供更好的主题装修，没有年度维护要求，在运行中几乎没有声音。 此外，这项技术将能够通用地收集PM2.5(以及其他相关的尺寸分数 例如PM4和PM10、可呼吸和可吸入PM)，样品持续时间长达24小时。加在一起， 这些创新方面表明，UPAS将具有极强的竞争力，具有快速和 强大的市场渗透率。提出了三个目标：(1)将一种新颖的、实时的PM传感器集成到 UPAS硬件/固件；(2)开发一套不同的即插即用大小选择进气口，以使UPAS 更多功能，并针对重量、功率、性能和易用性优化UPAS；(3)验证性能 通过实验室和现场测试，验证了样机的性能。 好了！

! Project Summary Exposure to particulate matter (PM) air pollution is the fifth leading cause of premature disease and death on the planet and the number one environmental risk factor for the global burden of disease (posing a greater danger than all other environmental risk factors combined) according to the World Health Organization. Despite the growing need (and demand), the state-of-the-art for assessing personal exposure to PM is based on decades old technology that is inefficient, burdensome, and expensive. The physical burden posed by these monitors (noise, visual aesthetic, and weight) make them difficult to wear. The cost of these monitors also prevents air pollution exposure monitoring at scales relevant to epidemiologic research and occupational hazard surveillance. This Phase II proposal will develop and commercialize a novel, lightweight, and inexpensive personal sampling technology based upon ultrasonic piezoelectric pumping modules. The ultrasonic personal aerosol sampler (UPAS) has the potential to gain a wide share of the air pollution monitoring market. AST proposes developing this sampler into a commercial prototype that is inexpensive (<$200 bill-of-material cost at scale), provides both time-integrated (filter-based) and real-time measurements, is accurate (flow control and PM sampling efficiency within 4% of reference), compact, lightweight (<200g), provides better subject fitment, has no annual maintenance requirements, and virtually silent in operation. Furthermore, the technology will be versatile – able to collect PM2.5 (along with other relevant size fractions such as PM4 and PM10, respirable, and inhalable PM) for sample durations of up to 24 hrs. Taken together, these innovative aspects suggest that the UPAS will be highly competitive with potential for rapid and substantial market penetration. Three aims are proposed: (1) Integrate a novel, real-time PM sensor into the UPAS hardware/firmware; (2) Develop a suite of different plug-and-play size-selective inlets to make the UPAS more versatile and optimize the UPAS for weight, power, performance, and usability; (3) Validate performance of the prototype through laboratory and field testing. !