Gonioreflectometric measurements in the mid-wavelength infrared range
Description
A gonioreflectometer for the mid-wavelength infrared range was built to measure the emissivity of rough surfaces without contact. Gonioreflectometric measurements were conducted for several surface materials. Every HDF5-File contains the thermal images for a camera angle and incident angles from 1° to 90°, with open and closed chopper. For the camera angle of 15°, the data for incident angles from 3° to 87° degree is usable. Usable is the data from 1° to 87° for Camera angles of 20°, 30°, 40°, 45°, 50°, 60°, 70°, 80°, 85°. The thermal images are available as temperature values in °C, radiance value in W/sr/m^2 and digital values. The radiance values are determined via Plancks Law. The rotation stage for the integrating sphere moves continuously with 10° per second, and the MWIR camera takes 10 HDR thermal image every second with the fastest possible frame rate to ensure the correctness of the angle.
License
Except where otherwised noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International