The proposed EMOS system will provide for NASA a distributed and embedded in situ system for measurement of TPS response in aerothermal and aerodynamic environments. It will provide better traceability from the modeling and design tools to actual performance, because the resultant EMOS data can lead to higher-fidelity design tools, improved risk quantification, decreased heat shield mass, and increases in direct payload. For specific NASA applications, these microsensors can be applied to different types of ablative materials used for TPSs including, but not limited to, PICA, PICA-X, SIRCA, Superlight Ablator (SLA), and Avcoat, and those under development for planetary aerocapture and entry as well as return to Earth. Military applications of the EMOS system will include health monitoring of military aircraft components. The military will benefit from this technology by incorporating EMOS into the engine and drivetrain components of rotorcraft to monitor, in situ and in real time, potential component failure, to reduce the amount of inspection and testing required, and increase reliability and mission availability. Commercial applications include health monitoring of industrial control and heavy equipment used in construction and mining operations, commercial aircraft engines, drivetrain systems, and utility systems. An immediate application of the EMOS system will be monitoring coal-fired power plants, natural-gas-based power plants, geothermal plants, as well as other power-generation facilities throughout the nation. This sensor suite can be used directly in critical high-temperature power plant components including superheater and reheater pendants for in-situ real-time condition monitoring.