Standardization Of Thermal Emittance Measurements

Item

Title
Standardization Of Thermal Emittance Measurements
Date
1961
Index Abstract
Not Available
Photo Quality
Not Needed
Report Number
WADC TR 59-510 Part 2
Creator
Harrison, William N.
Richmond, Joseph C.
Corporate Author
National Bureau of Standards
Laboratory
Materials Central
Extent
27
Identifier
AD0259326
Access Rights
OTS
Distribution Classification
1
Contract
AF 33(616)58-20
DoD Project
7360
DoD Task
73603
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Abstract
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.
Report Availability
Full text available
Date Issued
1961-02
Provenance
Lockheed Martin Missiles & Fire Control
Type
report
Format
1 online resource
Media
WADCTR59-510part02.pdf

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