Passive, Wireless Sensors for Extreme Turbine Conditions

ABSTRACT: The purpose of this project is to develop and demonstrate innovative wireless sensor materials and concepts that can be used on turbine engine components for Engine Health Monitoring (EHM) at temperatures up to and exceeding 1,260 degrees C. The state of the wireless sensor circuit will be determined by the resonant response from an outside transmitter/receiver. The sensors will be constructed from proven high-temperature materials that meet the project goal of stable material properties up to 1260 degrees C (2300 degrees F). BENEFIT: The development of low cost, robust, high temperature sensors will allow: 1) For measuring the operating parameters in extremely hot environments such as the compressor and turbine sections to validate computer modeling codes, 2) Allow active control of pressure surges in turbine engines, 3) Allow the ability to diagnose turbine engine system health and estimate component capability for future missions, thereby reducing the cost of ownership, 4) Provide inputs for diagnostic and life prediction models and will allow engine inspection and maintenance to be performed on accurate need-based schedules, removing the inefficiencies and guesswork from aircraft maintenance. This is expected to lead to significant depot and maintenance cost savings and a significant reduction in aircraft downtime.