Smart Respirators - Embedded detectors for real-time monitoring of end-of-service-life in respirator filter cartridges

项目总结： 石油和天然气、金属加工、危险等行业的工人都戴着口罩。 材料、环境净化、化学研究和制造。最常见的一种 口罩是指使用者定期更换滤芯或滤芯的口罩。这些墨盒 根据保护级别和制造商的不同，成本约为5至20美元。可更换部件的使用寿命 滤芯不是专用的，可以根据佩戴者的肺活量有很大的不同， 工作强度、接触化学品的类型和浓度以及环境因素。服务 生命可能从几分钟到几天不等。目前还没有能够可靠地发出警报的“智能”滤芯 穿戴者对即将发生的化学物质的突破和随后对化学物质伤害的防护丧失。 这项提案描述了一种新的使用低成本微型传感器来开发新型智能口罩的方法，以帮助 保护工人免受吸入有害化学蒸气的影响。海岸科学公司提议 开发嵌入式探测器。可嵌入探测器的操作规范将由 规格由主要的呼吸器制造商霍尼韦尔公司提供。拟议的探测器将监测 用于各种高风险的可更换化学蒸气滤芯的剩余使用寿命 职业，包括石油和天然气、油漆、金属加工和危险材料行业的工人。 霍尼韦尔正在开发一种无线接口，它将询问嵌入式传感器以获取 剩余使用寿命。这是为中国工人提供智能服装和其他防护装备的第一步 其他化学工业。最终，探测器可以无线链接到曝光/位置映射 系统，以帮助识别化学品泄漏，使工作场所变得更安全。 对于醛和醚等高极性化学品，Seaco ast的化学电容器是理想的检测器。为 低极性化学品，如大多数石化产品和含氯碳化物，海岸公司提出了一种阻抗- 基于探测器的。为了证明第一阶段的可行性，海岸公司将开发一套探测器，用于三种常见的 符合规格的化学品(甲苯、三氯乙烯和丙酮) 机制、响应性和最低灵敏度。 海岸第一阶段的目标是(1)开发和优化探测器；(2)证明当这些 设备被嵌入到滤床中，在不同的位置，它们可以用来开发时空 化学突破的模型；(3)将工作原型交付给霍尼韦尔在其实验室进行测试，以及(4) 为第二阶段的优化、广泛的测试和试生产开发设计。

Project Summary: Respirator masks are worn by workers in many industries, such as oil and gas, metal working, hazardous materials, environmental clean-up, and chemical research and manufacturing. The most common type of respirator mask is one where the user replaces the filter cannister or cartridge periodically. These cartridges cost approximately $5 to $20 depending on level of protection and manufacturer. The service life of a replaceable filter cartridge is not specific to the application and can vary greatly depending on the wearer's lung capacity, strenuousness of the work, type and concentration of chemical exposure, and environmental factors. Service life may range from minutes to days. Currently there are no “smart” filter cartridges capable of reliably alerting the wearer to imminent chemical breakthrough and subsequent loss of protection against chemical injury. This proposal describes a novel use of low-cost microsensors to develop new Smart-Respirator masks to help protect workers from inhalation exposure to harmful chemical vapors. Seacoast Science, Inc. proposes developing embeddable detectors. Operating specification for the embeddable detectors will be provided by specifications provided by Honeywell, Inc., a major respirator manufacturer. The proposed detectors will monitor the remaining service life of replaceable chemical-vapor filter-cartridges used for a wide range of high-risk occupations, including workers in the oil and gas, painting, metal working, and hazardous materials industries. Honeywell is developing a wireless interface which will interrogate embedded sensors for an indication of remaining service life. This is the first-step toward smart-clothing and other protective equipment for workers in other chemical industries. Ultimately, the detectors can be wirelessly linked to an exposure/location mapping system, to help identify chemical leaks, so the workplace can be made safer. For high polarity chemicals such as aldehydes and ethers, Seacoast's chemicapacitor is an ideal detector. For lower-polarity chemicals such as most petrochemicals and chlorocarbons, Seacoast proposes an impedance- based detector. To prove feasibility in Phase I, Seacoast will develop a set of detectors for three common chemicals (toluene, trichloroethylene, and acetone) designed to meet specifications for size, power, transduction mechanism, responsivity, and minimum sensitivity. Seacoast's Phase I objectives are to (1) develop and optimize the detectors; (2) demonstrate that when these devices are embedded into a filter bed, at various locations, they can be used to develop a spatial-temporal model of chemical breakthrough; (3) to deliver working prototypes to Honeywell for testing in their labs, and (4) develop designs for Phase II optimization, extensive testing, and pre-production.