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Scientific Technical Review
2014, vol. 64, br. 2, str. 42-49
jezik rada: engleski
vrsta rada: neklasifikovan
objavljeno: 20/12/2015
Creative Commons License 4.0
Modelovanje temperaturske razlike ekvivalentne šumu kod termalnih kamera, proračun i analiza
aUniverzitet odbrane, Vojna akademija, Beograd
bVojnotehnički institut - VTI, Beograd
cTeleoptik žiroskopi, Zemun
dUniverzitet u Beogradu, Institut za fiziku, Beograd-Zemun

Projekat

Generisanje i karakterizacija nanofotonskih funkcionalnih struktura u biomedicini i informatici (MPNTR - 45016)

Sažetak

Smatra se da temperaturska razlika ekvivalentna šumu (NETD) ili termička osetljivost ima veliku važnost za proces vrednovanja i upoređivanja performansi termovizijskih kamera koje su u suštini uređaji za beskontaktno merenje temperature. Ovaj rad opisuje aplikaciju za proračun NETD-a zasnovan na specifičnoj detektivnosti detektora. NETD nekoliko termalnih kamera je procenjen i upoređen sa vrednostima koje su deklarisali proizvođači. Matematički model korišćen u ovom procesu se veoma oslanja na specifičnu detektivnost detektora. Zbog toga je uveden određen broj geometrijskih krivih za aproksimaciju oblika krivih specifične detektivnosti u različitim spektralnim opsezima. Osim toga, razmatrani su uticaj odabranog spektralnog opsega i promena NETD-a uzimajući u obzir dva slučaja: preklopljene podopsege i nepreklopljene podopsege.

Ključne reči

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