Njani a CRT monitor

Ngandlel wenzeka lixesha xa komele wanyamalala phantse ngokupheleleyo TV kunye esweni esekelwe technology cathode-ray. Khumbula, ezi zixhobo ngumsina ukuba uphethe phantse isiqingatha kwedesika computer. Ngoku ke ubukhulu kunqabile idlula-10 cm, uze kuphela isibane ukhanyiso. Akumangalisi ke, abaninzi ngovuyo ulibele into CRT monitor. Kodwa watsho phantsi! Nangona, xa kuphela ngenxa yokuba ngaphambi nkqu zakutshanje ulwelo-akhazimlayo kunoogxa kwezinye iinkalo.

Njani na CRT esweni

Okokuqala, makhe yonke ezama izifinyezo. Ngoko, igama elithi "CRT" libhekisela beam electron okanye, njengoko kubonisiwe ekuqaleni, ityhubhu cathode (ukusuka IsiNgesi CRT -. Cathode Ray-Tube). Ngokuqhelekileyo, xa igama elithi "ityhubhu" abantu abaninzi isilinda, Iziphelo apho akukho eludongeni. Ngaphandle nje ukuba loo esweni CRT, kubalulekile ukukhankanya ukuba kule meko a ukumelwa enjalo bubuxoki. Ngenxa imilo ityhubhu kuyo Lunyawukile moya zezindlu kwaye ubonakalisa ukuya kwicala elinye. Le kwamanzi kufanekisela ingxenye glasi ngaphambili, lowo apho kwakheka imifanekiso. Icala ngaphakathi kwale nxalenye isale kukho izinto ezizodwa - phosphor. osemqoka yawo eyodwa kukuba xa engena umsinga amasuntswana ngolwaa wabo kumandla entshukumo ngendlela yemvelo aguqulwa abe ukukhanya. Ngaloo ndlela, a esweni CRT sisixhobo apho imiqadi electron neyophahla ngaphakathi silhouetted picture screen. Umntu ubona oko, ngenxa ukukhutshwa le phosphor.

Kwelinye icala iselwa ibekwe kwiiflethi electrode, ebizwa kunaso. Zakha umsinga ngamasuntswana.

Ngamanye amazwi, le esweni CRT iquka iglasi electrode ityhubhu-umpu kunye wesekethe yolawulo.

isimiso ukusebenza

Njengoko iyaziwa, ukuxuba umlinganiselo othile ezintathu imibala yokuqala: oluhlaza, obomvu, kunye noblowu - ungafumana bonke abanye, kuquka abangasekhoyo. Kuqeshwe amagosa okubeka esweni Umbala kumphezulu engaphakathi iphela iskrini iqulathe pixels, ngokuqhelekileyo abahamba esinabo (iibhloko iziqwenga 3). Ngamnye kubo uyakwazi kukhanyisa enye imibala ephambili. Kwaye electrode ezintathu, nganye ibalaselisa amagama abo "yakhe". Xa oluthile lokukhanya Ukuze watyhutyha nabo kwikhusi, kusenokwenzeka ukwenza umfanekiso umbala. Ke kaloku, isixhobo in black and white nompu enye kuphela.

Ukuze ulawule ukuhamba amasuntswana kusetyenziswa aphambuke magnetic kunye ulwalathiso lokuqala sesindululo idaliwe, ngenxa enokuba umahluko.

Ekubeni Nngokobuchwepheshe kakhulu kunzima ukuphumeza, esebenzisa isigqibo ukuchaneka ekhethekileyo umqadi esiwa kwi ngongoma - imaski. Kakhulu ethetha, oku igridi tubing phakathi kwekhusi kunye imipu. Kukho iindidi ezahlukeneyo iimaski. Okunye abanoxanduva iimpawu ukubonisa (amanqaku ecacileyo, imilo-pixel).

Ukususela emva kokuthumela amasuntswana ukuvutha phosphor kunciphisa ngokukhawuleza kakhulu, kufuneka rhoqo ukuphinda-ukudala umfanekiso. Zombini static nabanamandla. Ngoko ke ray zoba ngokweenkcukacha ezininzi umfanekiso ngomzuzwana. Le odumileyo isakhelo elilodwa isixhobosovavanyo lwemifanekiso. Le rhoqo ephakamileyo, yokudanyaza lula.

Okwangoku ukulungisa CRTs kusebenziso lasemva inkqubo yekhompyutha ayifaneleki, njengokuba ubuchwepheshe LCD mihla athembisayo. Imeko engalawulwa ngulo mthetho - ukusebenzisa ethile.