Title :
A hysteresis model for a vanadium dioxide transition-edge microbolometer
Author :
De Almeida, Luiz Alberto Luz ; Deep, Gurdip Singh ; Lima, Antonio Marcus Nogueira ; Neff, Helmut Franz ; Freire, Raimundo Carlos Silvério
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Fed. da Paraiba, Joao Pessoa, Brazil
fDate :
8/1/2001 12:00:00 AM
Abstract :
This paper presents the adaptation of the Preisach model, originally developed for magnetic hysteresis, to describe mathematically the hysteresis in the resistance-temperature characteristics of vanadium-dioxide (VO2) thin film radiation sensors. The necessary and sufficient conditions for the applicability of the Preisach model to a VO2 film sensor are experimentally verified. Experimentally measured characteristics are compared with those given by the model for minor and major loops
Keywords :
bolometers; hysteresis; metal-insulator transition; thin film devices; vanadium compounds; Preisach model adaptation; VO2; hysteresis model; major loops; metal-insulator transition; minor loops; resistance-temperature characteristics; thin film radiation sensors; transition-edge microbolometer; Bolometers; Magnetic films; Magnetic hysteresis; Magnetic sensors; Mathematical model; Metal-insulator structures; Sensor phenomena and characterization; Temperature sensors; Thermal sensors; Thin film sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
