Prediction and on-orbit calculation of temperatures for thermal radiators of the Midcourse Space Experiment's quartz crystal microbalances

Jeffrey C. Lesho; O. Manuel Uy; Douglas Mehoke; Bob E. Wood

doi:10.1117/12.190142

19 October 1994 Prediction and on-orbit calculation of temperatures for thermal radiators of the Midcourse Space Experiment's quartz crystal microbalances

Jeffrey C. Lesho, O. Manuel Uy, Douglas Mehoke, Bob E. Wood

Author Affiliations +

Proceedings Volume 2261, Optical System Contamination: Effects, Measurements, and Control IV; (1994) https://doi.org/10.1117/12.190142
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

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.

Citation Download Citation

Jeffrey C. Lesho, O. Manuel Uy, Douglas Mehoke, and Bob E. Wood "Prediction and on-orbit calculation of temperatures for thermal radiators of the Midcourse Space Experiment's quartz crystal microbalances", Proc. SPIE 2261, Optical System Contamination: Effects, Measurements, and Control IV, (19 October 1994); https://doi.org/10.1117/12.190142

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