Fast Response, Fiber-Optic Micromachined Five-Hole Probe for Three-Dimensional Flow Measurements in Harsh Environments

The Interdisciplinary Consulting Corporation (IC2) proposes the development of a fiber-optic, micromachined five-hole probe for three-dimensional flow measurements in harsh environments. The goal of this research is to develop a microelectromechanical systems (MEMS) based, optical probe capable of significantly improved performance compared to existing available sensors, by enabling faster response time, higher bandwidth transduction and increased angular measurement range while reducing sensor power requirements. The proposed technology offers these benefits in a compact, high-temperature capable package, extending past successes in fiber-optic, micromachined pressure sensing technology. Specifically, this sensor technology will be developed to address NASAs objective to develop innovative tools and technologies that can be applied in NASA?s ground-based test facilities to revolutionize wind tunnel testing and measurement capabilities and improve utilization and efficiency as per subtopic A1.08 Aeronautics Ground Test and Measurements Technologies of the NASA FY 2017 SBIR/STTR Solicitation.