November 2025
For the design of hypersonic vehicles, there is a high demand for the determination of heat transfer rates. Sensors with response times in the microsecond range like atomic layer thermopiles (ALTP) can be used to capture the shock and characteristics of the boundary layer forming behind the moving shock wave. This study focuses on the validation of static calibration methods and dynamic evaluation of atomic layer thermopile sensors exposed to a traveling shock wave at the end and side wall of a shock tube. For the first time, the dynamic response of ALTP temperature data could be investigated in short-duration shock tube experiments and compared with coaxial thermocouple readings.
Acknowledgments: This investigation is supported by the Bavarian Ministry of Economic Affairs, Regional Development and Energy, via Project “EnErhOw— ROB-2-3410.20-04-10-01/BLU-2109-0001” and the Bavarian State Ministry of Science and Arts within the framework of BayWISS funding.
