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Proceedings Paper

Prediction and on-orbit calculation of temperatures for thermal radiators of the Midcourse Space Experiment's quartz crystal microbalances
Author(s): Jeffrey C. Lesho; O. Manuel Uy; Douglas Mehoke; Bob E. Wood
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Paper Abstract

Four temperature-controlled quartz crystal microbalance (QCM) instruments are on the Midcourse Space Experiment (MSX) spacecraft to measure the accretion of contaminants and to identify the contaminant species using the thermogravimetric analysis technique. Calibration data were used to derive equations for the performance of the thermoelectric temperature controllers in the MSX QCM sensors. The equations relate input power and the crystal temperature to the base temperature. The MSX thermal model with the QCM locations was used to predict the operating temperature of each of the radiators. On orbit, the equations can be used to calculate the QCM radiator temperature from the crystal temperature and the input power.

Paper Details

Date Published: 19 October 1994
PDF: 8 pages
Proc. SPIE 2261, Optical System Contamination: Effects, Measurements, and Control IV, (19 October 1994); doi: 10.1117/12.190142
Show Author Affiliations
Jeffrey C. Lesho, Johns Hopkins Univ. (United States)
O. Manuel Uy, Johns Hopkins Univ. (United States)
Douglas Mehoke, Johns Hopkins Univ. (United States)
Bob E. Wood, Calspan Corp. (United States)

Published in SPIE Proceedings Vol. 2261:
Optical System Contamination: Effects, Measurements, and Control IV
A. Peter M. Glassford, Editor(s)

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