A Pulsed Thermal Calibration Device

Abstract

A pulsed thermal calibration device has been designed to calibrate nonstationary heat flux sensors that are fixed in place on models for studying heat transfer in wind tunnels. The deep upgrading of the device has significantly expanded the range of its operating parameters: the heat-flow density increased from 0.01 to 50 W/cm² and the flow temperature increased to 550°C. Operation of the device became easier and the restrictions on the sizes of the calibrated models were removed. The experimental results obtained in the measurements for a device equipped with a flexible electric heater are also presented.