CCD kapena CMOS: bwino ndi chiyani? yosayambitsa kwa wosankhidwa

Masanjidwewo - Kodi maziko a chithunzi kapena kanema. Iwo amasonyeza khalidwe ndi kusamvana kwa chithunzi. Today mu kupanga mawerengetsedwe ntchito awiri osiyana njira zamakono mfundo - CCD ndi CMOS. Nthawi zambiri mukhoza kumva funso ili: "Kodi mtundu wa masanjidwewo kusankha :? CCD kapena CMOS» mwa mafani chithunzi ndi zida kanema pankhaniyi mfundo mkangano. M'nkhani ino tikambirana mitundu iwiri ndipo n'kuyesayesa zimene zabwino masanjidwewo - CCD kapena CMOS.

zambiri

mawerengetsedwe The tinapangidwa analanda magawo kunyezimira kuwala padziko. Kunena si ntchito bwino mmodzi wa umisiri ndi zotheka. Mukhoza kupanga kufanizitsa pa magawo enieni ndi kuzindikira mtsogoleri pa mbali imodzi kapena wina. Pankhani zokonda ndi owerenga, nthawi zambiri muyezo yaikulu ndi mtengo wa mankhwala, ngakhale zidzakhala otsika quality kapena specifications a mpikisano ake.

Choncho, tiyeni tiwone chimene ali mitundu iwiri ya zipangizo. CCD-masanjidwewo - ndi Chip, amene wapangidwa ndi photodiodes kuwala tcheru; izo analengedwa zochokera pakachitsulo. The peculiarity wa ntchito lakelo lagona mfundo ya ntchito chipangizo mlandu-chimayendera. CMOS-masanjidwewo - chipangizo pogwiritsa pa michenga yopangira zida zamagetsi munda zotsatira transistors ndi chipata lotsekedwa ku mitsinje ya madutsidwe osiyana.

Mfundo ntchito

Tiyeni titsegule ku chizindikiritso cha kusiyana amene angatithandize kusankha chimene chiri bwino - bokosi CMOS kapena CCD? Chachikulu kusiyana pakati pa matekinoloje awiri ndi momwe ntchito. CCD-wagawo mlandu kwa pixels ndi n'kukhala angathe magetsi amene nakweza kupitirira masensa photosensitive. Chifukwa ndi fano mu mawonekedwe analogi. Pambuyo kuti digitization fano lonse la ADC lapansi. Ndiko kuti, chipangizo ndizo magawo awiri - ndi masanjidwewo mwachindunji ndi Converter. CMOS-luso amakhala mu kuti digitization umabala lililonse mapikiselo payekha. linanena bungwe kale wokonzeka digito fano. Ndiko kuti, magetsi mlandu amasonkhana mu mapikiselo masanjidwewo mu condenser, ndi amene angathe magetsi atachotsedwa. Imafalikira kwa analogi mkuzamawu (ophatikizidwa mwachindunji mu mapikiselo), ndiye digitized mu Converter ndi.

Kodi kusankha: CCD kapena CMOS?

Imodzi mwa magawo zofunika kuti kudziwa wosankha njira izi ndi chiwerengero cha amplifiers masanjidwewo. CMOS-zipangizo ndi nambala yaikulu ya zipangizo (pa mfundo iliyonse), kotero kuti mbendera Wapambana pang'ono yafupika fano khalidwe. Choncho, CCD-masanjidwewo ntchito kulenga zithunzi ndi digiri yapamwamba ya mwatsatanetsatane, mwachitsanzo, kwa zachipatala kafukufuku, ndi zolinga mafakitale. Koma CMOS-luso ntchito makamaka zipangizo kunyumba: makamera ukonde, mafoni, mapiritsi, Malaputopu, ndi zina zotero ..

The chizindikiro pafupi kumene kumatsimikizira zotani bwino - CCD kapena CMOS, - ndi osalimba a photodiodes lapansi. The apamwamba ilo liriri, photons ochepa "anataya pachabe," motero, chithunzi adzakhala bwino. Choncho, CCD-masanjidwewo kuzilambalala mpikisano, monga amapereka mawonekedwe amene alibe mipata amenewa, panthawi pa CMOS pano (iwo anakonza transistors).

Komabe, pamene kutsogolo kwa wosuta afika kusankha: Amene mtundu wa masanjidwewo - ndi CMOS kapena CCD - kugula pops mmwamba chizindikiro chachikulu - mtengo chipangizo. CCD-luso ndi kwambiri mtengo kuposa mpikisano ake, ndi mowa mphamvu. Choncho, kukhazikitsa kumene pafupifupi khalidwe la fano ndi chokwanira, ndi zosayenera.