Gịnị bụ a Cathode Ray tube

Ikekwe, e nweghị ndị dị otú ahụ na onye ga-abụ ná ndụ ya chere ihu na ngwaọrụ, imewe nke nke na-agụnye a cathode ray tube (ma ọ bụ CRT). Ugbu a yiri ngwọta na-ifịk ifịk na-anọchi ha ọzọ oge a na ogbo dabeere na mmiri mmiri crystal ngosipụta (LCD). Otú ọ dị, e nwere ọtụtụ nke ebe a cathode ray tube bụ ka oké mkpa. Ka ihe atụ, na elu-nkenke oscilloscopes LCD ike ga-eji. Otú ọ dị, otu ihe doro anya - ọganihu ọmụma ngosi ngwaọrụ ga-emecha duga akụọla afọ n'ala nke CRT. Ọ bụ a okwu nke oge.

Cathode ray tube: akụkọ ihe mere eme nke omume

The chọpụtara nwere ike iche YU Plucker, nke na 1859 afọ, ọmụmụ nke omume nke ọla dị iche iche na mpụga mmetụta, a onu chọpụtara radieshon (emission) nke mbụ ahụ - electrons. Kpụrụ urughuru ibé na-akpọ cathode ụzarị. Ọ na-dọọrọ uche ka ọdịdị nke anya emission nke ụfọdụ bekee (phosphor) na kọntaktị na ndị a elektrọn ibé. Modern CRT bụ ike nke na-eke ihe oyiyi n'ihi na abụọ ndị a nchoputa.

Mgbe afọ 20, ọ na-e hụrụ empirically na ngagharị ntụziaka nke enwupụta electrons nwere ike na-achị mpụga ndọta. Nke a na-adị mfe kọwara ma ọ bụrụ na anyị na-echeta na-adịghị mma ụgwọ ebu ji na-akpụ akpụ na magnetik na electric ubi.

Na 1895, Karl F. Braun nụchara management na tube, ma si otú ike ịgbanwe vector nke urughuru eruba direction bụghị naanị a ubi nke usoro, ma a pụrụ iche mirror na ike ga-agba gburugburu, nke meghere kpam kpam ọhụrụ atụmanya maka ojiji nke mepụtara. Na 1903 godu Venelt enịm n'ime tube cathode electrode n'ụdị a cylinder, na-eme ka o kwe omume na-achịkwa osisi ike nke-enwupụta agbanwe oge.

Na 1905, Einstein chepụtara na akụkụ maka ịgbakọ photoelectric mmetụta, na mgbe 6 afọ ọ e gosiri na-agba ọsọ image nyefe ngwaọrụ a anya. Doo a na-achịkwa site na a ndọta, na capacitor ndebe nke ihie uru.

N'oge mmalite nke mmepụta nke mbụ ụdị nke CRT ụlọ ọrụ na ọ bụ adịghị njikere ike hụ na i meziri na a ibu diagonal, otú etokwa anya m ji dị ka a ikwere.

Ngwa cathode ray tube

Kemgbe ngwaọrụ e gbanwetụrụ, ma mgbanwe ndị evolutionary na ọdịdị, dị ka ọ dịghị ihe na fundamentally ọhụrụ na N'ezie nke na-arụ ọrụ e kwukwara.

Glass ahụ amalite na a conical tube ndọtị akpụ na ihuenyo. The agba image ngwaọrụ, n'ime elu na-ntekwasa na a ụfọdụ nzọụkwụ atọ di iche iche nke phosphors (Red, Green, Blue), na-enye a luminescence agba na elektrọn doo abatakwa. Ntem, e nwere atọ cathode (egbe). Iji ewepụkwa ihe ndị electrons defocus na-enye ezi doo ugbu a abanye chọrọ mgbe na ihuenyo n'etiti cathode na phosphor oyi akwa usoro ndokwa ígwè Ogwe - nkpuchi. Ọ nwere ike jiri ya tụnyere ihe stencil, bipu niile na-enweghị isi.

On n'elu kpụ ọkụ n'ọnụ cathode elektrọn emission amalite. Ha ọsọ n'ebe anode (electrode na a mma ụgwọ), jikọọ na conical òkè nke tube. Ọzọkwa, ibé na-lekwasịrị anya pụrụ iche eriri igwe na-ada n'ime ubi nke nupụsịrị usoro. Agafe grate ọdịda na chọrọ mgbe na ihuenyo, na-eme ntọghata nke ya kinetic ike n'ime ìhè.

nkà na ụzụ kọmputa

Monitors na cathode-ray tube na n'ọtụtụ ebe, na-eji na sistemụ kọmputa. The mfe nke imewe, elu pụrụ ịdabere, ezi na agba, na mba na-egbu oge (otu millisecond nzaghachi matriks LCD) - nke a bụ ha isi uru. Nso nso a, Otú ọ dị, dị ka ekwuola, na CRT na-obibi ọzọ echekwa na ergonomic LCD Monitors.