Sidee monitor CRT a

Calashaan dareemo waa marka khaanadaha ku dhowaad gebi ahaanba la joojiyey telefishinada iyo kormeerayaasha ku salaysan technology cathode-ray. Xasuustaan, kuwani waa aaladaha eheeyn in mashquulin ku dhowaad nus ka mid ah miiska kombiyuutarka. Hadda waa dhumucda dhif ka badan 10 cm, ka dibna kaliya la laambad Nuur ah. Ma aha la yaab leh, dad badan oo si farxad illoobi waxa monitor CRT ah. Laakiin si ay waxba idiinma tarin! Inkastoo, haddii oo kaliya, sababtoo ah ka hor xataa dhigooda dareere-crystal ugu dambeeyay la eego qaar ka mid ah uu yahay.

Sidee kormeerayaasha CRT

First of dhan, ha deciphering gaabiyey. Sidaas darteed, ereyga "CRT" loola jeedaa dogob electron ama, sida aynu tilmaamay hore, tube cathode ah (ka CRT Ingiriisi ah -. Cathode Ray-Tube). Sida caadiga ah, marka erayga "tube" dadka intooda badan waa dhululubo, darafyadiisa oo ka mid ah taas oo ay jirto derbiga lahayn. Marka laga reebo xaqiiqada ah in sida a monitor CRT, waxaa lagama maarmaan ah in la xuso in ay dhacdo in this matalaad noocan oo kale ah waa been. Maxaa yeelay, qaabka of tube ku dhex jira waa ka fog tahay diyaarada cylindrical iyo Ballaariyay in ay hal dhinac. Tani waxay ka dhigan dusha qayb ka mid ah muraayadda hore, mid ka mid ah kaas oo images loo sameeyay. dhinaca gudaha ee qaybtii this dahaarka leh wax gaar ah - phosphor. Its feature gaar ah waa in haddii ay soo galo webigu ku soo qayb eedeeyay waxa ay tamar ogeed in hab dabiici ah waxaa beddelay iftiinka. Sayidka, monitor CRT ah waa qalab ah oo saqafka u electron saqafka gudaha ee shaashadda sawir silhouetted. Man arko, mahad warshadu hawada ku of phosphor ah.

Dhinaca kale sibraar la dhigayaa block a of electrodes, loo yaqaan madfac. Waxay abuuraan durdur of Qurub.

In si kale loo dhigo, monitor CRT ka kooban yahay hal galaas electrodes tube-qori iyo circuit gacanta.

Mabda 'hawlgalka

Sida la og yahay, la isku qasin cabirku yahay qaar ka mid ah saddex midabada aasaasiga ah, cagaaran, oo cas iyo buluug - waxaad ka heli kartaa oo dhan dadka kale, oo ay ku jiraan midabo. Kormeerayaasha Midabka dusha oo dhan gudaha ee shaashadda ka kooban yahay pixels, conventionally isugu keenaa in triads (blocks 3 gogo '). Mid kasta oo iyaga ka mid ah waa inay awoodaan inay iftiimin mid ka mid ah midabo kala hoose. Oo saddex electrodes, mid kasta oo hoosta ka xariiqday in ay la eego "u gaar ah". In nalalka si gaar ah iyo iyaga oo maraya shaashadda, waxaa suurtagal ah si ay u sameeyaan image midabka ah. Waana mid ka, qalabka madow iyo caddaan ah mid ka mid ah qoriga oo keliya.

Si loo xakameeyo socodka qayb isticmaalo darbo electromagnetic iyo jihada hore ee mooshinka loo abuuray, ay sabab u tahay farqiga u iman kara.

Tan iyo farsamo ahaan kuwo ku adag si ay u gaaraan, iyadoo la isticmaalayo sax gaar ah go'aan dharsameeyaha dhacayay uu dhibic - maaskaro. Xad hadlayay, tani waa Roobka a dalool u dhexeeya screen iyo qoryaha. Waxaa jira noocyo kala duwan oo waji. Qayb ahaan waxay mas'uul ka ah sifooyinka bandhigay (dhibcood Hufnaan, qaab-pixel) waa.

Tan iyo markii dib markii garaacid qayb phosphor siyasad hoos aad u degdeg ah, waxaad u baahan tahay in si joogto ah dib-u-abuuri image ah. Labada guurto ah oo firfircoon. Sidaa darteed rays dhaansado si faahfaahsan daraasiin image of jeer labaad. Tani waa iskaanka jir Hertz caanka ah. inta jeer ee sare, flicker yar dareemi.

Currently cusboonaysiiyo CRTs loo isticmaalo dambe ee nidaamka kombiyuutarka noqon lahaa aan habboonayn, sida farsamada casriga ah LCD waa ka rajo. Marka laga reebo - isticmaalka gaar ah.