Measurement of Radiative Surface Properties for Use of the Infrared Scanning Camera.

摘要

An integrating sphere reflectometer was assembled for the measurement of radiative properties of surfaces on which temperature may be determined with the infrared scanning camera. The spectral-directional emittance was determined in the wavelength range of 1.3 micrometers = or < lambda = or < 5.5 micrometers; the view angle was varied from near normal to 30 deg; the temperature range of interest was ambient to 500F. Also, for calibration purposes, a large-aperture blackbody calibration source was designed to operate at temperatures below 250F. The camera can be used for mapping the temperature distribution of test articles in space simulation chambers and also for aerodynamic heating on wind tunnel models. Another potential application for the IR scanning camera is for use in measuring plume radiance (radiant flux) from rocket engines fired in the space simulation chambers.