22/05/20Amakhamera amaningi esayensi asebenzisa ukupholisa izinzwa ukuze anciphise amandla okushisa ancike ku-thermal 'umsindo wamanje omnyama'[isixhumanisi] namaphikseli ashisayo. Amanye amakhamera anikeza izindlela zokupholisa eziningi zokuthi ukushisa okweqile kususwa kanjani, kanti kwamanye amakhamera nezinhlelo zokusebenza zesithombe, akukho ukupholisa okudingekayo.
Inzwa yekhamera ngokwayo ipholiswa ngokuvamile ibe ngaphansi kwezinga lokushisa ngedivayisi ye-Peltier, ehambisa ukushisa kusistimu yokukhipha ukushisa yekhamera. Ukupholisa 'Umoya' noma 'Umoya Ophoqelelwe' kuyindlela evame kakhulu yokususa ukushisa, lapho ifeni isebenzisa ukugeleza komoya ukushintshanisa lokhu kushisa okweqile nomoya ozungezile. Kungenjalo, amanye amakhamera aphinde anikeze amandla okusebenzisa isistimu yomjikelezo we-liquid ukususa ukushisa endaweni yokugcina amanzi noma okugeza okupholile. Lokhu kunganikeza izinzuzo kwezinye izimo, ngokushintshanisa ukusebenziseka nokucatshangelwa kwezindleko.
Ngidinga ukupholisa uketshezi?
Kumakhamera apholile, ukupholisa komoya ngokuvamile kuyinketho elula kakhulu enikeza ukugeleza komoya okwanele kungenzeka eduze kwekhamera, futhi izinga lokushisa le-ambient legumbi aliphezulu kakhulu. Lokhu akudingi izingxenye ezengeziwe noma ukufakwa, futhi abukho ubungozi bokuchitheka noma ukuvuza. Kodwa kunezimo ezimbili eziyinhloko lapho ukupholisa uketshezi kungase kubaluleke.
Okokuqala, kwamanye amakhamera, ukupholisa uketshezi kungasekela izinga lokushisa lenzwa eliphansi, elibese linikeza umsindo ophansi wamanje omnyama. Uma izikhathi zokuchayeka ezinde zamashumi amasekhondi ukuya kumaminithi zidingeka ngalawa makhamera, umsindo oncishisiwe unganikeza isilinganiso esibalulekile sesignali-kumsindo kanye nokuthuthukiswa kwekhwalithi yesithombe.
Okwesibili, nakuba yonke imizamo yenziwa ngesikhathi sokwenziwa ukunciphisa ukudlidliza okuvela kubalandeli bangaphakathi bekhamera, ngezinye izikhathi okokusebenza okuzwela kakhulu lokhu kungaba yinkinga. Kulesi simo, ukupholisa okuwuketshezi kuvumela ukufakwa kwekhamera okungadlidlizi, nohlelo lokuzungeza uketshezi bese lukwazi ukuhlukaniswa nezinto ezibucayi.
