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. Real-time assessment of chemical composition in ISRU processes is critical to monitor device conversion efficiency and health as well as alerting to hazards associated with contaminants. There is a need for the development of robust, quantitative, and rapid sensing techniques for propellant and life-support streams that are produced using ISRU methods. This project will develop miniaturized, calibration-free, laser absorption spectroscopy sensors that build on recent advancements of our proprietary Capillary Absorption Spectrometer (CAS), which enables compact and lightweight form factors suitable for field deployment. The resulting gas sensors will provide a lower cost means to provide real-time measurements. Instead of the need to collect a limited number of samples that are analyzed at a central location, the new sensor will enable continuous measurements at remote field-sites. The overall objective of this STTR project is the development of a calibration-free, low-power, compact sensing suite that provides timely and quantitative assessment of propellant purity and conversion progress. In Phase II we will produce and demonstrate sensors for both Lunar and Martian applications. The Phase II effort is specifically focused on raising the technology readiness level (TRL), exploring system trade-offs, producing exemplary systems, and demonstrating the technology for a range of NASA and commercial applications. In Phase II, the specific objectives are: Fully develop sensor concepts Optimize spectrscopy and sensing strategy Prduce breadboards and prototypes Test and demonstrate sensors Determine perfrmance limits and explore trade-offs Validate technlogy in representative test environments (TRL 4) Generate cntent to publicize and promote the technology Develop NASA Insertion path and deliver prototype sensor Establish commercialization path, including Go-To-Market Strategy.

The ISRU sensor will directly support NASA initiatives for human exploration. Future astronauts will require the ability to collect space-based resources and transform them into breathable air; water for drinking, hygiene, and plant growth; rocket propellants; building materials; and more. Mission capabilities and net value will multiply when useful products can be created from extraterrestrial resources.   Sensors resulting from this project will provide an extremely attractive alternative to existing gas diagnostics for a wide range of commercial applications. The ability to perform trace-gas analysis in a small, compact system is beneficial for environmental monitoring (e.g., greenhouse analysis) and process control (e.g., contaminant quantification).

This is early/mid-stage (TRL 4) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.