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Dynamic Electrothermal Model of a Sputtered Thermopile Thermal Radiation Detector for Earth Radiation Budget Applications

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dc.contributor.authorWeckmann, Stephanieen
dc.contributor.committeechairMahan, James Roberten
dc.contributor.committeememberThomas, James R. Jr.en
dc.contributor.committeememberScott, Elaine P.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:52:29Zen
dc.date.adate1997-09-05en
dc.date.available2014-03-14T20:52:29Zen
dc.date.issued1997-08-28en
dc.date.rdate1997-09-05en
dc.date.sdate1997-08-28en
dc.description.abstractThe Clouds and the Earth's Radiant Energy System (CERES) is a program sponsored by the National Aeronautics and Space Administration (NASA) aimed at evaluating the global energy balance. Current scanning radiometers used for CERES consist of thin-film thermistor bolometers viewing the Earth through a Cassegrain telescope. The Thermal Radiation Group, a laboratory in the Department of Mechanical Engineering at Virginia Polytechnic Institute and State University, is currently studying a new sensor concept to replace the current bolometer: a thermopile thermal radiation detector. This next-generation detector would consist of a thermal sensor array made of thermocouple junction pairs, or thermopiles. The objective of the current research is to perform a thermal analysis of the thermopile. Numerical thermal models are particularly suited to solve problems for which temperature is the dominant mechanism of the operation of the device (through the thermoelectric effect), as well as for complex geometries composed of numerous different materials. Feasibility and design specifications are studied by developing a dynamic electrothermal model of the thermopile using the finite element method. A commercial finite element-modeling package, ALGOR, is used.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-8497-205315en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-8497-205315/en
dc.identifier.urihttp://hdl.handle.net/10919/37014en
dc.publisherVirginia Techen
dc.relation.haspartetd.PDFen
dc.relation.haspartchap1.pdfen
dc.relation.haspartchap2.pdfen
dc.relation.haspartchap3.pdfen
dc.relation.haspartchap4.pdfen
dc.relation.haspartchap5.pdfen
dc.relation.haspartbib.PDFen
dc.relation.haspartvita.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectRadiationen
dc.subjectConductionen
dc.subjectThermocoupleen
dc.subjectDetectoren
dc.titleDynamic Electrothermal Model of a Sputtered Thermopile Thermal Radiation Detector for Earth Radiation Budget Applicationsen
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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