Title page for ETD etd-12302008-063832
|Type of Document
||A numerical study of equivalence in scanning thermistor bolometer radiometers for earth radiation budget applications
||Master of Science
|Mahan, James Robert
|Dancey, Clinton L.
|Vick, Brian L.
|Date of Defense
The Earth Radiation Budget Experiment (ERBE) consists of a suite of three
scanning and four nonscanning radiometric instruments on each of three satellites
which monitor the solar-reflected and Earth-emitted components of the Earth's
radiative energy budget. A numerical model has been formulated to study the
dynamic behavior and equivalence of the ERBE scanning thermistor bolometer
The finite-difference method is applied to the detector of the ERBE scanning
radiometer to characterize its thermal and electrical dynamic behavior. The thermal
analysis confirms the thermal time constant of the instrument claimed by the vendor.
The electrical model reveals that the instrument can be very sensitive to spatial
variations of the incident thermal radiation. However, the analysis confirms that the
hypothesis of equivalence is justified for viewing typical Earth scenes.
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