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Precision temperature gradient measurements on window glassSurface temperature gradients were measured with miniature thermocouples installed in a 58.5 cm (23-inch) square window. Test measurements at 25 locations were made under vacuum and with the window operating in radiant heat transfer mode. The analysis of thermocouple design and installation is presented along with a lead wire routing scheme to allow for both differential and absolute temperature measurements while using a minimum number of signal feedthru paths through the test chamber wall. Typical test data and operational precautions are presented along with the accuracy analysis for installation effects and measurement effects to support differential temperature measurement precision values of + or - 0.06 C RMS + or - 0.1 F RMS).
Document ID
19790010843
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mikk, G.
(Perkin-Elmer Corp. Danbury, CT, United States)
Petrie, W.
(Perkin-Elmer Corp. Danbury, CT, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: NASA. Goddard Space Flight Center Ninth Conf. on Space Simulation
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
79N19014
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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