The principle of total hemispherical infrared emittance measurement of materials and coatings using a calorimetric method is summarized. A test facility based on this principle is described. When thermal losses are taken into account, the total error is estimated to be less than 2 percent over the temperature range 0 to 50 C.
NASA STI/Recon Technical Report N
- Pub Date:
- October 1976
- Infrared Radiation;
- Test Facilities;
- Thermal Radiation;
- Fluid Mechanics and Heat Transfer