SBIR Phase II: Atmospheric Pressure Microplasma Emission Spectrometer

这个小型企业创新研究(SBIR)第二阶段研究项目将开发一种微型大气压等离子光谱仪，使用的源可以产生高度受限的高密度放电(kW/cm3)。该电源将基于高频环形谐振器结构，并将利用低成本、广泛使用的IC功率放大器和驱动器，在适度批量生产中具有极低的成本，并将消耗2W的射频功率，从而实现便携操作。这种放电的紧凑尺寸应该允许直接耦合到光纤光谱仪，并允许强烈的光发射。这项研究将大大增加科学知识基础，并导致对这些高功率密度、小和高度非平衡等离子体的物理和工程方面的基本理解。将在这里开发的源技术将使各种化学和气体分析技术实现微型化。这项技术通过大幅降低分析设备的成本(10-100倍)、外形系数(100倍)和便携性，将为工业环境中的客户提供经济效益，提高工人和工作场所的安全，并允许进行更广泛的环境监测。

This Small Business Innovation Research (SBIR) Phase II research project will develop a miniature atmospheric pressure plasma spectrometer using a source which generates a highly confined, high-density discharge (kW/cm3). The source would be based on a high frequency ring resonator structure and would utilize low cost widely available IC power amplifiers and drivers, would have extremely low cost in moderate volume production, and would consume 2 W rf power, allowing for portable operation. The compact size of this discharge should allow straightforward coupling to fiber optic spectrometers, and intense optical emission. This research will substantially add to the scientific knowledge base and lead to fundamental understanding of the physics and engineering of these high-power-density, small and highly non-equilibrium plasmas. The source technology to be developed here will enable the miniaturization of a variety of chemical and gas analysis technology. This technology, by dramatically lowering the cost (10-100x), form factor (100x), and portability of the analytical equipment will provide economic benefits to customers in industrial settings, enhance worker and workplace safety, and allow for wider environmental monitoring.