Impembelelo yempembelelo yesikhumba kwintambo ye-coaxial

Intambo ye-coaxial luhlobo lwentambo yombane kunye nomgca wokuhambisa umqondiso, ngokuqhelekileyo yenziwe ngamaleko amane ezinto eziphathekayo: umaleko ongaphakathi yintambo yobhedu eqhubayo, kwaye umaleko wangaphandle wocingo ujikelezwe ngumaleko weplastiki (esetyenziswa njenge-insulator okanye i-dielectric). ). Kukho umnatha obhityileyo wezinto zokuqhuba (ngokuqhelekileyo ubhedu okanye ialloy) ngaphandle kwe-insulator, kwaye umaleko wangaphandle wesixhobo sokuqhuba usetyenziswa njengolusu lwangaphandle, njengoko kubonisiwe kuMfanekiso 1, umzobo 2 ubonisa icandelo lomnqamlezo we-coaxial. intambo.

Iintambo ze-coaxial zisetyenziselwa ukuhambisa izibonakaliso ze-high-frequency kwaye zinekhono elihle kakhulu lokuchasana nokuphazamiseka ngenxa yesakhiwo sabo esisodwa. Njengenxalenye ebalulekileyo yeenkqubo zonxibelelwano zale mihla, yi-artery yosasazo lwe-high-frequency signal transmission; Phakathi kwabo, umqhubi ophakathi akathwali kuphela amandla e-electromagnetic, kodwa unquma ukusebenza kakuhle kunye nokuzinza kokuhanjiswa kwesignali, kwaye inxalenye ephambili yokuhanjiswa kwesignali.

Umgaqo wokusebenza:

Iintambo ze-coaxial ziqhuba umsinga oguqukayo endaweni yangoku ngokuthe ngqo, oku kuthetha ukuba kukho ukuguqulwa okuninzi kwicala langoku ngesekhondi.

Ukuba ucingo oluqhelekileyo lusetyenziselwa ukuhambisa i-high-frequency current, olu hlobo locingo luya kusebenza njenge-eriyali ekhupha imiqondiso yerediyo ngaphandle, ibangele ukulahlekelwa kwamandla omqondiso kunye nokuncipha kwamandla omqondiso ofunyenweyo.

Uyilo lweentambo ze-coaxial ngokuchanekileyo ukusombulula le ngxaki. Irediyo ekhutshwa lucingo olusembindini ibekwe yodwa ngumaleko we-mesh conductive, onokulawula unomathotholo okhutshiweyo ngokubeka umhlaba.

Ukuhlelwa:

Ngokuxhomekeke kwimathiriyeli yokwenziwa kunye nenkqubo, kuhlala kukho ezi ndidi zilandelayo:

● I-Monofilament Solid Conductor:

Ngokuqhelekileyo yenziwe ngobhedu olulodwa oluqinileyo okanye ucingo lwe-aluminium;

Ibonelela ngombane ongcono kwaye isetyenziswa rhoqo kwizicelo ezisezantsi okanye imigama emide yekhebula

● I-Conductor ene-Stranded:

Ngenani locingo oluncinane oluphothiweyo;

Ubhetyebhetye ngakumbi kwaye ubhetyebhetye kunee-conductor eziqinileyo, ezilungele usetyenziso oluselfowuni okanye oluhlala lutshintsha.

● Intsimbi yeCopper-clad (CCS) :

Intsimbi yentsimbi inika amandla kunye nokuqina, ngelixa ubhedu lubonelela ngezinto ezifunekayo zombane;

Ihlala isetyenziswa kwiimeko apho kufuneka amandla omatshini.

● iSilver-plated Copper:

Ucingo lobhedu lufakwe ngoluhlu lwesilivere, olunokuphucula i-conductivity kunye neempawu ze-frequency zomqhubi.

Ihlala isetyenziselwa ukuphindaphinda okuphezulu, ukuchaneka okuphezulu okanye iimfuno ezisemgangathweni zomkhosi.

● Ingxubevange yobhedu yeCadmium:

Ialloy conductors kwi offshore okanye ngqwabalala izicelo zemekobume apho uxhathiso olongezelelweyo lokutya lufuneka;

Izishunqulelo zeMaterial ilegend-Conductor&Braid Material njengoko kubonisiwe kuMfanekiso 3.

Isiphumo solusu

Isiphumo solusu, esaziwa ngokuba sisiphumo solusu, senzeka xa umsinga otshintshayo udlula kumqhubi. Ngenxa yokungeniswa, ngokusondeleyo kumphezulu kwi-cross-section ye-conductor, i-denser yokusabalalisa ii-electron.

Umphumo wesikhumba uyinto ebalulekileyo yokusabalalisa ngokungafaniyo kwe-AC yangoku ngaphakathi kwe-conductor. Njengoko i-frequency inyuka, i-current ithande ukuhamba phezu komqhubi. Kwiifrikhwensi ze-microwave, esi siphumo sichazwa ngakumbi, esikhokelela kuxinzelelo oluphezulu lwangoku kumphezulu womqhubi ophakathi wentambo ye-coaxial kunangaphakathi.

△ Isiphumo solusu sichaphazela intambo ye-coaxial kule miba ilandelayo:

① Ukwandisa ukuchasana kunye nelahleko - Ngenxa yokuba ngoku ubukhulu becala ihamba phezu komhlaba, indawo yokuqhubela phambili esebenzayo iyancitshiswa, okwenza umqhubi ophakathi wentambo ye-coaxial uvelise ukuchasana okukhulu, ngaloo ndlela ukwandisa ilahleko yokudluliselwa.

② Ukufudumeza - Umbane obangelwa ngumqondiso ophezulu we-frequency ugxininiswe kwi-surface flow flow, eya kukhokelela kwisiphumo esicacileyo se-thermal, ngaloo ndlela ukwandisa ubushushu bentambo kunye nokuchaphazela ukuzinza nokuthembeka kwesibonakaliso.

③ Ukukhethwa kwezinto eziphathekayo - Xa kuyilwa intambo ye-coaxial, ukuqhutyelwa kwezinto zomqhubi ophakathi kufuneka kuthathelwe ingqalelo. Izinto eziphezulu ze-conductivity ezifana ne-copper plating yesilivere inokunciphisa ngokufanelekileyo ukuxhathisa kunye nokunciphisa ilahleko.

△Ukunciphisa impembelelo yeziphumo zolusu, izicwangciso zokujongana neziphumo zolusu ziquka:

① Ukulungiswa kwezinto - ukukhetha izixhobo eziphezulu zokunciphisa ilahleko yokuxhathisa. Ngokomzekelo, usebenzisa i-conductors yesiliva efakwe kwi-copper, umaleko wesilivere unokubonelela nge-conductivity ephezulu, kwaye ngenxa yempembelelo yesikhumba, ubukhulu besilivere bufuna kuphela ii-micrometers ezimbalwa.

② Uyilo lweConductor-Ukuphucula ubume babaqhubi, njengokusebenzisa ii-conductors ezixineneyo, kunokunyusa indawo ephezulu kunye nokunciphisa impembelelo yesikhumba.

③ Isixokelelwano sokupholisa-Kusetyenziso lwamaza omoya aphezulu kakhulu, sebenzisa isixokelelwano sokupholisa esifanelekileyo ukunqanda ukufudumeza.

④ Ikheyibhuli elungiselelwe wena-Yenza uyilo lwentambo ngokwezifiso ngokusekwe kwiimfuno ezithile zesicelo, uqwalasele izinto ezininzi ezinje ngamaza, inqanaba lamandla, kunye nomgama wothumelo.

Ngokubanzi, ukuqonda kunye nokulawula umphumo wolusu kubalulekile ekuqinisekiseni ukusebenza kokuhanjiswa kwesignali ephezuluiintambo ze-coaxial . Ngoyilo olukrelekrele kunye nokusetyenziswa kwezinto ezikumgangatho ophezulu, iintambo zothumelo lwe-coaxial zinokusebenza ngokufanelekileyo, ngaloo ndlela zixhasa iimfuno zethu zonxibelelwano ezikhula ngokukhawuleza. Zezi zigqibo eziqinisekisa ukuba umqondiso ngamnye, ukusuka kunxibelelwano olungenazingcingo olusemhlabeni ukuya kuthumelo lwesathelayithi, lunokuhanjiswa ngokucacileyo nangokuthembekileyo kwiimeko ezinzima nezicela umngeni.