Title :
Advanced simulator of pyroelectric detector circuits and associated signal processing
Author :
Efthymiou, Spyros ; Ozanyan, Krikor B.
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
We report on an advanced simulator facility to model reliably the performance of complete pyroelectric detector (PED) systems. The temperature distribution in the pyroelectric chip is modelled by the finite element method and verified by a separate measurement with a commercial PED. From the temperature transients, the pyroelectric effect and transimpedance conversion are modeled on a time scale much finer than the PED response time, accommodating a large variety of time-dependent radiative load scenarios. The voltage output of the PED is fed into the signal processing algorithm of choice, allowing to investigate the conditions for maximizing the signal to noise ratio.
Keywords :
pyroelectric detectors; pyroelectricity; signal processing; advanced simulator facility; associated signal processing; finite element method; pyroelectric detector circuits; pyroelectric effect; separate measurement; signal processing algorithm; signal to noise ratio; temperature distribution; temperature transients; time dependent radiative load scenarios; transimpedance conversion; Crystals; Detectors; Finite element methods; Geometry; Integrated circuit modeling; Transfer functions; Transient analysis; finite element method; pyroelectric detector; signal processing; transimpedance amplifier;
Conference_Titel :
AFRICON, 2011
Conference_Location :
Livingstone
Print_ISBN :
978-1-61284-992-8
DOI :
10.1109/AFRCON.2011.6072021
