Umthelela womphumela wesikhumba kukhebula le-coaxial

Intambo ye-coaxial kuwuhlobo lwezintambo zikagesi kanye nolayini wokudlulisa isignali, ngokuvamile owenziwe ngezingqimba ezine zezinto ezibonakalayo: ungqimba lwangaphakathi luwucingo lwethusi oluqhutshwayo, futhi ungqimba lwangaphandle locingo luzungezwe ungqimba lwepulasitiki (olusetshenziswa njengesivikelo noma i-dielectric. ). Kukhona futhi i-mesh encane yezinto ezibonakalayo (imvamisa ithusi noma i-alloy) ngaphandle kwesivikeli, futhi ungqimba lwangaphandle lwezinto eziqhutshwayo lusetshenziswa njengesikhumba sangaphandle, njengoba kukhonjisiwe kuMfanekiso 1, Umfanekiso 2 ubonisa isigaba esiphambene se-coaxial. ikhebula.

Izintambo ze-coaxial zisetshenziselwa ukudlulisa amasignali ama-high-frequency futhi zinekhono elihle kakhulu lokulwa nokuphazamiseka ngenxa yesakhiwo sazo esiyingqayizivele. Njengengxenye ebalulekile yezinhlelo zokuxhumana zesimanje, iwumthambo wokudlulisa amasignali wemvamisa ephezulu; Phakathi kwabo, umqhubi ophakathi akagcini nje ngokuthwala amandla kagesi, kodwa futhi unquma ukusebenza kahle nokuzinza kokudluliselwa kwesignali, futhi kuyingxenye ebalulekile yokudluliselwa kwesignali.

Umgomo wokusebenza:

Amakhebuli angama-coaxial aqhuba i-alternating current esikhundleni se-direct current, okusho ukuthi kukhona ukuhlehla okuningana kusiqondiso samanje ngomzuzwana.

Uma intambo evamile isetshenziselwa ukudlulisa i-high-frequency current, lolu hlobo lwentambo luzosebenza njenge-antenna ekhiphela amasignali omsakazo ngaphandle, okubangele ukulahlekelwa amandla esignali kanye nokuncipha kwamandla esignali eyamukelwe.

Ukwakhiwa kwezintambo ze-coaxial kuwukuxazulula le nkinga. Umsakazo okhishwa ucingo oluphakathi nendawo uhlukaniswa yi-mesh conductive layer, engalawula umsakazo okhishiwe ngokumisa phansi.

Ukuhlukaniswa:

Ngokuya ngezinto zokwakha kanye nenqubo, kuvame ukuba nezigaba ezilandelayo:

● I-Monofilament Solid Conductor:

Ngokuvamile kwenziwa ngethusi elilodwa eliqinile noma ucingo lwe-aluminium;

Inikeza ukusebenza okungcono kukagesi futhi kuvame ukusetshenziselwa izinhlelo zokusebenza eziphansi noma amabanga amade wekhebula

● I-Stranded Conductor:

Ngenombolo yocingo oluncane olusontekile;

Ivumelana nezimo kakhulu futhi ivumelana nezimo kunamakhondaktha aqinile, afanele izinhlelo zokusebenza eziphathwayo noma ezishintsha njalo.

● I-Copper-clad Steel (CCS) :

Umgogodla wensimbi unikeza amandla nokuqina, kuyilapho ungqimba lwethusi luhlinzeka ngezinto ezidingekayo zikagesi;

Ivame ukusetshenziswa ezikhathini lapho amandla emishini edingeka khona.

● I-Silver-plated Copper:

Ucingo lwethusi lumbozwe ungqimba lwesiliva, olungathuthukisa izici ze-conductivity kanye nemvamisa ye-conductor.

Ivame ukusetshenziswa emazingeni aphezulu, ukunemba okuphezulu noma izidingo ezijwayelekile zezempi.

● I-Cadmium Copper alloy:

Amakhondatha engxubevange yezicelo zemvelo ezingasogwini noma ezinokhahlo lapho kudingeka ukumelana nokugqwala okwengeziwe;

Izifinyezo zentokozo yelejendi-I-Conductor&Braid Material njengoba kuboniswe kuMfanekiso 3.

Umphumela wesikhumba

Umthelela wesikhumba, owaziwa nangokuthi umphumela wesikhumba, uyenzeka lapho umsinga oshintshanayo udlula ku-conductor. Ngenxa yokungeniswa, lapho isondela phezulu endaweni ephambanayo ye-conductor, i-denser ukusatshalaliswa kwama-electron.

Umthelela wesikhumba empeleni uyinto yokusatshalaliswa okungalingani kwe-AC yamanje ngaphakathi kwekhondakta. Njengoba imvamisa ikhula, i-current ivame ukugeleza ebusweni bomqhubi. Kumafrikhwensi e-microwave, lo mphumela ugqama ikakhulukazi, okuholela ekumineni kwamanje okuphezulu kakhulu endaweni yekhondakta emaphakathi yekhebula lama-coaxial kunangaphakathi.

△ Umthelela wesikhumba uthinta ikhebula le-coaxial kulezi zici ezilandelayo:

① Khulisa ukumelana nokulahlekelwa - Ngenxa yokuthi i-current ikakhulukazi igeleza phezulu, indawo yokushayela ephumelelayo iyonke iyancishiswa, okwenza umqhubi ophakathi wekhebula lama-coaxial akhiqize ukumelana okukhulu, ngaleyo ndlela akhulise ukulahleka kokudlulisela.

② Ukushisa - Okwamanje okubangelwa isignali yefrikhwensi ephezulu kugxilwe ekugelezeni komhlaba, okuzoholela kumphumela ocacile wokushisa, ngaleyo ndlela kukhulise izinga lokushisa kwekhebula futhi kuthinte ukuzinza nokuthembeka kwesiginali.

③ Ukukhethwa kwezinto - Uma uklama ikhebula eliqinile, ukuqhutshwa kwento emaphakathi kakhondatha kufanele kucatshangelwe. Izinto eziphezulu ze-conductivity ezifana ne-copper plating yesiliva zinganciphisa ngempumelelo ukumelana nokunciphisa ukulahlekelwa.

△Ukunciphisa umthelela wemiphumela yesikhumba, amasu okubhekana nemiphumela yesikhumba ahlanganisa:

① Ukulungiselelwa kokubalulekile - ukukhetha izinto ezisetshenziswayo zokuqhuba kahle ukuze kuncishiswe ukulahleka kokumelana. Isibonelo, usebenzisa ama-conductors esiliva ane-copper, ungqimba lwesiliva lungahlinzeka nge-conductivity ephezulu, futhi ngenxa yomphumela wesikhumba, ubukhulu besiliva budinga kuphela ama-micrometer ambalwa.

② Idizayini Yekhondatha - Ukuthuthukisa ukwakheka kwamakhondatha, njengokusebenzisa amakhondatha axhumene, kungandisa indawo engaphezulu futhi kunciphise umphumela wesikhumba.

③ Uhlelo Lokupholisa - Kuzinhlelo zokusebenza zefrikhwensi ephezulu kakhulu, sebenzisa isistimu yokupholisa efanelekile ukuvikela ukushisa ngokweqile.

④ Ikhebuli Engokwezifiso - Enza ngendlela oyifisayo idizayini yekhebula ngokusekelwe ezidingweni ezithile zohlelo lokusebenza, ucabangela izici eziningi ezifana nemvamisa, ileveli yamandla, nebanga lokudlulisela.

Sekukonke, ukuqonda nokuphatha umphumela wesikhumba kubalulekile ekuqinisekiseni ukusebenza kokudluliswa kwesignali yemvamisa ephezuluizintambo ze-coaxial . Ngokuklama okuhlakaniphile kanye nokusetshenziswa kwezinto ezisezingeni eliphezulu, izintambo zokudlulisa i-coaxial zingasebenza ngokuphumelelayo, ngaleyo ndlela zisekele izidingo zethu zokuxhumana ezikhula ngokushesha. Yilezi zinqumo eziqinisekisa ukuthi wonke amasignali, kusukela ekuxhumaneni okungenantambo okusemhlabathini kuya ekudluliseleni ngesathelayithi, ingadluliswa ngokucacile nangokuthembekile ezindaweni eziyinkimbinkimbi neziyinselele.