SBIR Phase I: Low Cost, Cavity Ringdown Spectrometer for Gas Analysis

这一小型企业创新研究(SBIR)第一阶段项目将开发紧凑、低成本的气体传感器和分析仪，这些传感器和分析仪基于用于光纤通信的近红外激光器的腔衰荡光谱。尽管传统的腔振荡法可以达到对许多气体(水蒸气、二氧化碳、氨)的万亿分之一的检测极限，但很少有商业应用需要如此非凡的灵敏度。相反，价格和可靠性是传感器和分析仪市场的控制因素。这就是为什么我们提出了一种改进的振铃光谱形式，它应该导致低成本、紧凑和坚固耐用的仪器。第一阶段的工作旨在展示我们建议的技术的有效性，这将导致在第二阶段开发原型仪器。商业应用包括工业过程分析和控制、生物反应器监测和工人安全。理想情况下，传感器和分析仪将是低功率(可能是电池供电)、自我校准和自我检查的设备，这些设备将足够坚固耐用，以便进行现场安装。

This Small Business Innovation Research (SBIR) Phase I project will lead to the development of compact, low cost gas sensors and analyzers based on cavity ringdown spectroscopy using near-infrared lasers manufactured for fiber optic communications. Although conventional cavity ringdown spectroscopy can achieve part per trillion detection limits for many gases (water vapor, carbon dioxide, ammonia), few commercial applications require such extraordinary sensitivity. Instead, price and reliability are controlling factors for the sensors and analyzers market. That is why we propose a modified form of ringdown spectroscopy that should lead to low cost, compact, and rugged instruments. The Phase I effort is designed to demonstrate the effectiveness of our proposed technique which will lead to the development of a prototype instrument in Phase II.Commercial applications include industrial process analysis and control, bioreactor monitoring, and worker safety. Ideally, the sensors and analyzers will be low power (possibly battery operated), self-calibrating and self-checking devices that will be sufficiently rugged to allow in situ installation.