On the Calibration of Calorimeter Heat-Transfer Gages

Abstract

I designing a calorimeter heat-transfer gage it is required that all incident heat will be absorbed, so that the gage temperature will be raised uniformly. This aim is nearly met if the gage possesses a low specific heat and mass density and a high thermal conductivity, and if the surface of the model on which the gage is mounted has a relatively low thermal conductivity. It is also required that the gage be smoothly mounted and that its presence not affect the aerodynamic heating by being at a temperature significantly different from that of the adjacent model surface. This latter criterion is being considered by the present author in another note. In practice one endeavors to measure a mean temperature of the gage, as can best be achieved by placing the gauge in a bridge circuit. The aerodynamic heating is then assumed to be related to the gage's temperature-time derivative by the linear relation