CAS sensor for ISRU propellant production

We will further develop a calibration-free sensing suite for analysis of ISRU propellant production relevant to both Lunar and Martian applications. The concept is based on our proprietary Capillary Absorption Spectrometer (CAS), which utilizes laser absorption spectroscopy inside a hollow fiber to enable quantitative, sensitive, and specific analysis of a range of relevant molecular species. The Phase I effort was highly successful in proving the concept and demonstrating the technique for real-time analysis of both major species at relatively high concentrations (e.g., CH4, H2, H2O, and CO2) as well as potential contaminants at ppm level concentrations (e.g., CO, CH2O, and HCl). In Phase II, we will raise the TRL with the development of brassboard and prototype systems, which will be demonstrated for ISRU relevant processes and related commercial applications.