Specification for the measurement of the thermo-optical properties of thermal-control materials at ESTEC
Abstract
A specification is presented of instruments and equipment, their settings, and the methods of calculation used to determine the two thermo-optical properties of thermal-control materials: solar absorptance and total hemispherical emittance. The sizes of test pieces submitted for measurements at ESTEC are also stated and the precautions that have to be taken are indicated.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1977
- Bibcode:
- 1977STIN...7725463.
- Keywords:
-
- Absorptance;
- Emittance;
- Specifications;
- Thermal Control Coatings;
- Measuring Instruments;
- Optical Measurement;
- Optical Properties;
- Procedures;
- Solar Radiation;
- Surface Properties;
- Temperature Effects;
- Thermodynamic Properties;
- Fluid Mechanics and Heat Transfer