Thermal Analysis of the Detector in the Radiation Budget Instrument (RBI)

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dc.contributor.authorPfab, Jonathan Francisen
dc.contributor.committeechairVick, Brian L.en
dc.contributor.committeememberNguyen, Vinhen
dc.contributor.committeememberMahan, James R.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2018-02-07T09:00:23Zen
dc.date.available2018-02-07T09:00:23Zen
dc.date.issued2018-02-06en
dc.description.abstractEarth radiation budget instruments are devices designed to study global climate change. These instruments use telescopes embarked on low-earth-orbit satellites to measure Earth emitted and reflected solar radiation. Radiation is sensed as temperature changes caused by radiation absorbed during scans of the earth on a delicate gold-black coated detector. This work is part of a larger effort to develop an end-to-end dynamic electro-thermal model, based on first-principles, for the next generation of earth radiation budget instruments, the Radiation Budget Instrument (RBI). A primary objective of this effort is to develop a numerical model of the detector to be used on RBI. Specifically, the sensor model converts radiation arriving at the detector, collimated and focused through telescopes, into sensible heat; thereby producing a voltage. A mathematical model characterizing this sensor is developed. Using a MATLAB algorithm, an implicit finite-volume scheme is implemented to determine the model solution. Model parameters are tuned to replicate experimental data using a robust parameter estimation scheme. With these model parameters defined, the electro-thermal sensor model can be used, in conjunction with the remaining components of the end-to-end model, to provide insight for future interpretation of data produced by the RBI.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:13907en
dc.identifier.urihttp://hdl.handle.net/10919/82035en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectRadiometryen
dc.subjectParameter Estimationen
dc.subjectThermal Analysisen
dc.subjectRadiation Budget Instrumenten
dc.subjectGold-black Detectoren
dc.subjectRemote Sensingen
dc.titleThermal Analysis of the Detector in the Radiation Budget Instrument (RBI)en
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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