The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Standardization Of Thermal Emittance Measurements

Report Number: WADC TR 59-510 Part 2
Author: Harrison, William N.
Author: Richmond, Joseph C.
Corporate Author: National Bureau of Standards
Laboratory: Materials Central
Date of Publication: 1961-02
Pages: 27
Contract: AF 33(616)58-20
Project: 7360
Task: 73603
AD Number: AD0259326

Work was directed toward establishment of equipment and procedures for the evaluation of normal spectral emittance of specimens held at temperatures in the range of approximately 800 to 1400 K (980 to 2060 F), over the wavelength range of 1 to 15 microns. Some of the developments were modified to increase precision and reduce errors in the measurements. One such modification was to provide means whereby a reference blackbody furnace and the hot specimen could be interchanged at will as sources of radiant flux to be measured relative to that from the comprison blackbody furnace. The apparent emittance of the specimen and of the reference blackbody furnace were both measred relative to the comparison blackbody furnace. The apparent emittance of the specimen at each of numerous selected wavelengths was then divided by the corresponding apparent emittance of the reference blakbody furnace to obtain the reported spectral emittance of the specimen. Assembly of the equipment for determination of spectral reflectance, under conditions approximating normal illumintion and hemispherical viewing, was completed.

Lockheed Martin Missiles & Fire Control
Download this report

(PDF, 1.34 MB, 27 pages)

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
The inside cover of this report indicates that it was released for public sale

Related Reports

This report has the following parts/volumes: