Mene ne wani cathode Ray Tube

Zai yiwu babu irin wannan mutum wanda zai zama a cikin rayuwarsa da fuskantar da na'urorin, da zane na wanda ya hada da wani cathode ray tube (ko Crt). Yanzu irin wannan mafita an rayayye ana maye gurbinsu da su more zamani takwarorinsu bisa ruwa crystal nuni (LCD). Duk da haka, akwai wurare da dama a cikin abin da wani cathode ray tube shi ne har yanzu ba makawa. Alal misali, a high-daidaici oscilloscopes LCD ba za a iya amfani da su. Duk da haka, abu daya ne bayyananne - ci gaban da bayanai nuni na'urar ƙarshe zai kai ga duka gazawar da Crt. Yana da wani al'amari na lokacin.

Cathode ray tube: tarihin abin da ya faru

A discoverer iya xaukar Yu Plucker, wanda a 1859 shekara, binciken na cikin hali na karafa da daban-daban na waje effects, wani sabon abu gano radiation (watsi) na firamare barbashi - electrons. Kafa barbashi bim aka kira cathode haskoki. Ya kuma kusantar da hankali ga bayyanar bayyane watsi da wasu abubuwa (phosphor) a lamba tare da wadannan electron bim. Modern Crt ne iya samar da wani image saboda wadannan biyu binciken.

Bayan shekaru 20, an samu empirically cewa tashin shugabanci na jefarwa electrons za a iya sarrafawa da wani waje Magnetic filin. Wannan ne sauƙi bayyana idan muka tuna cewa korau cajin yan dako halin da motsi da Magnetic da lantarki filayen.

A 1895, Karl F. Braun mai ladabi management a tube, kuma ta haka ya iya canza vector na barbashi kwarara shugabanci ba ne kawai a filin daga cikin tsarin, amma kuma wani madubi na na musamman da za a iya juya su, wanda ya buɗe sama gaba daya sabon yiwuwa ga yin amfani da sabuwar dabara. A 1903 godu Venelt sanya a cikin tube cathode lantarki a cikin wani nau'i na Silinda, sa shi yiwuwa don sarrafa tsanani da ake jefarwa juyi.

A 1905, Einstein tsara da lissafi ga kirga da photoelectric sakamako, kuma bayan shekaru 6 da shi da aka nuna a guje image canja na'urar a nesa. Beam aka sarrafawa da wani Magnetic filin, da kuma capacitor cajin da haske darajar.

A lokacin da farkon samar da farko model na Crt masana'antu shi ne, ba a shirye su haifar da fuska tare da wani ya fi girma Diagonal, don haka girmamãwa ruwan tabarau amfani da wani jayayya.

Inji cathode ray tube

Tun da na'urar da aka modified, amma canje-canje ne juyin a cikin yanayi, kamar yadda babu wani abu fundamentally sabon a cikin shakka daga aikin da aka kara.

Glass jiki fara da wani conical tube tsawo kafa allo. A launi image na'urorin, ciki surface ne mai rufi da wasu mataki iri uku phosphors (Red, Green, Blue), bada wani luminescence launi a electron katako ya shiga. Haka kuma, akwai uku cathode (bindigogi). Domin sako daga electrons defocus da kuma samar da ake so katako halin yanzu shigar da ake so aya a kan allo tsakanin cathode da phosphor Layer tsarin shirya karfe sanduna - mask. Yana za a iya kwatanta ta da stencil, yanke duk ba dole ba.

A surface na tsanani cathode electron watsi fara. Sunã gaugãwar wajen anode (lantarki da kyau cajin), da alaka da conical rabo daga bututu. Bugu da ari, bim mayar da hankali musamman nada da kuma fada a cikin filin na deflection tsarin. Wucewa ta cikin grate fall a kan so nufi kan allon, haddasa hira da ta sanadin motsi makamashi zuwa ga haske.

fasahar kwamfuta

Zaune a yanki da cathode-ray tube ana amfani da ko'ina a cikin kwamfuta tsarin. A sauki zane, high AMINCI, m launi, da kuma bã ta da hani (haka daƙiƙa martani matrix LCD) - wannan shi ne babban amfani. Kwanan nan, duk da haka, kamar yadda aka ambata riga, da Crt an gudun hijira fiye da tattali da kuma ergonomic LCD zaune a yanki.