Waa maxay wanaagsan: CCD ama CMOSka? Shuruudaha xulashada

Matrix - saldhig u ah sawir ama video. Waxaa qeexaya tayada iyo xallinta image ah. Maanta in soo saaridda ee matrices isticmaalo laba kala duwan farsamada mabda '- CCD oo CMOSka. Inta badan waxa aad maqli kartaa su'aasha ah: "Waa maxay nooca furta dooro :? CCD ama CMOSka» Waxaa ka mid ah taageerayaasha of sawir iyo qalabka video arrintan la xiriira waa dood kulul. In this article, waxaan dib u eegi doona, kuwaas oo isku day in laba nooc oo ogaado iyo waxa ugu fiican furta - CCD ama CMOSka.

warbixin guud

matrices waxa loogu talagalay in lagu soo qabto xuduudaha ka rays iftiin dushiisa. Waxaad dhahdaa ma aha faa'iido ah oo nadiif ah mid ka mid ah farsamooyinka ay suurtagal tahay. Waxaad samayn kartaa barbar on-beegyada uu gaar ah oo aqoonsadaan hogaamiyaha ka mid ah dhinac ama mid kale. Iyadoo la tixgelinayo in la door ah dadka isticmaala ', waa inta badan ay kala bixiyc ugu weyn waa qiimaha sheyga, xitaa haddii ay noqon doonto liita tayada ama qaaska ah ee ay tartame.

Sidaas, aan aragno waxa ay yihiin laba nooc oo ah qalabka. CCD-furta - jab ah, oo ka kooban photodiodes light-xasaasiga ah; waxaa la abuuray oo ku salaysan Silicon. peculiarity ee shaqada been mabda'a of qalab kharash-xidhay hawlgal. CMOSka-furta - aalad in uu ku salaysan yahay Semiconductor transistors saamayn field isagoo iridda ah ku dahaaran ka channels ee conductivity duwan.

Mabda 'hawlgalka

Ha naga leexisid aqoonsiga of kala duwan oo kaa caawin doona in la sameeyo doorasho, taas oo ka wanaagsan - a CMOSka furta ama CCD? Farqiga wayn ee u dhaxaysa labadan teknoolajiyada waa siday u shaqeeyaan. lacag CCD-unit ka pixels waxaa lagu beddelay iman kara koronto oo la maqalka ka baxsan dareemayaal photosensitive. Natiijadu waxay tahay sanam qaab analog. Ka dib markii in digitization ee image oo dhan ADC ee. In uu yahay, qalab ka kooban yahay laba qaybood - furta oo si toos ah iyo Converter. CMOSka-technology waxa lagu gartaa in digitization soo pixel si gaar gaar ah. wax soo saarka mar hore waa image digital diyaar. Taasi waa, lacag korontada ururayaa in furta pixel in condenser ah, kaas oo laga yaabo in korontada laga saaro ka. Waxaa la isku qaadsiiyo in kordhiyo ee analog (gundhig si toos ah in pixel ah), ka dibna si digital ah ee Converter ah.

Maxaa kala dooran karo: CCD ama CMOSka?

One of xuduudaha muhiim ah in la go'aamiyo doorashada u dhexeeya farsamooyin waa tirada Sammeecado furta. CMOSka-qalabka leeyihiin tiro weyn ee qalabka (at hal dhibic kasta), si signalka baas wax yar hoos u tayo image. Sidaa darteed, ee CCD-furta waxaa loo isticmaalaa in la abuuro images leh Heer sare ah ee faahfaahsan, tusaale ahaan, caafimaadka, cilmi-baarista iyo ujeedooyin warshadaha. Laakiin CMOSka-technology waxaa inta badan loo isticmaalaa in qalabka guriga, kamaradaha web, casriga ah, kiniin, laptops, iyo wixii la mid ah ..

dhimaya soo socda in ay go'aamiso nooca waxa ka wanaagsan - CCD ama CMOSka, - waa cufnaanta ee photodiodes ah. The sare waa, ka photons yar "badiyay aan micne lahayn," siday u kala horreeyaan, sawirka noqon doonaa wanaagsan. In goob this, CCD-furta garab tartanka, sida ay bixisaa khariidad ah in uusan haysan dhimman sida, halka CMOSka jooga (waxay diyaarin transistors).

Si kastaba ha ahaatee, marka hore ee user helo doorasho: Waa kuwee nooc ka mid ah shaxda - ama CMOSka CCD - gadashada soo booda dhimaya ugu weyn - qiimaha qalabka. CCD-technology waa aad uga qaalisan tahay in ay tartanto, iyo isticmaalka tamarta. Sidaa darteed, inuu xoogeeyo halkaas oo tayo celceliska image waxaa ku filan, waxa ay tahay mid aan habooneyn.