Iimpawu ze-coaxial cable

Intambo ye-coaxialluhlobo lwentambo enikezelwe kwidatha kunye nokuhanjiswa komqondiso, obandakanya i-conductor eseziko, umaleko wokugquma, umaleko wekhaka elinomnatha, umaleko wokugquma wangaphandle kunye nomaleko wesheath.Umqhubi ophakathi wentambo ye-coaxial yintambo yentsimbi, edla ngobhedu okanye i-aluminium, i-insulating layer idla ngokwenziwa nge-polypropylene okanye i-polyethylene, kwaye umaleko wokukhusela umnatha ugqunywe ngumaleko okhuselayo kwaye wenziwa ngocingo lobhedu okanye i-aluminium foil. .Intambo ye-coaxialisetyenziswa kakhulu kuthungelwano lwekhompyuter, ukuhanjiswa komqondiso weTV, iinkqubo zokhuseleko, izikhululo zikanomathotholo kunye namanye amacandelo.

Ezi zilandelayo zezinye zeempawu eziphambili zeintambo ye-coaxial:

 1. Ukuphazamiseka kwe-Anti-electromagnetic: Umaleko okhuselayo we-mesh wangaphakathi wentambo ye-coaxial unokuxhathisa ngokufanelekileyo ukuphazamiseka kwe-electromagnetic yangaphandle kunye nokuqinisekisa ukuzinza kunye nokuthembeka kokuhanjiswa komqondiso.

 2. Umthamo omkhulu: Umqhubi ophakathi weintambo ye-coaxiallucingo lwentsimbi, i-conductivity elungileyo, umthamo omkhulu, unokudlulisa imiqondiso yamaxesha amaninzi.

 3. Umgama omde wothumelo lwesignali: umgama wothumelo lwesignali ye-coaxial cable ikude kunentambo eqhelekileyo, kwaye umgama wothumelo usuka kwiikhilomitha ezimbalwa ukuya kwishumi leekhilomitha.

 4.Ukukhusela umaleko we-sheath: i-coaxial cable yangaphandle yokugquma umaleko kunye ne-sheath layer inokukhusela ngokufanelekileyo isakhiwo seziko lentambo kunye nokwandisa ubomi benkonzo yentambo.

 5.I-impedance yeempawu: icandelo eliphambili lentambo ye-coaxial yi-conductor ezimbini zangaphakathi nangaphandle, i-current ngokusebenzisa i-conductor iya kuvelisa ukuchasana kunye ne-inductance, kunye ne-conductance kunye ne-capacitance phakathi kwabaqhubi iya kuveliswa, kwaye isasazwe kunye nomgca, owaziwa ngokuba ikopi esasaziweyo.

Ngenxa yoko, i-impedance eyiyo yeempawu zentambo ye-coaxial iya kuba phezulu kunexabiso lethiyori xa udibanisa inkqubo yokubonisa.Ke ngoko, ukuze kuthintelwe ukubonakaliswa kwesakhono somqondiso oveliswe yile meko kwaye kuqinisekiswe eyona mpembelelo ibalaseleyo yothumelo, i-terminal load impedance iyafuneka ukuba ihambelane ne-cable character impedance kangangoko kunokwenzeka.

 6.Iimpawu zokuthomalalisa: Iimpawu zokuthomalalisaintambo ye-coaxialzichongiwe ngokubanzi ngokunyanzeliswa koxinzelelo, olulingana ne-decibels yophawu lokunciphisa umbane wangoku ngobude beyunithi.I-attenuation constant ye-coaxial cable ilingana ne-frequency yokusebenza yesignali, oko kukuthi, ukuphakama kwe-frequency eveliswayo, i-attenuation eqhubekayo rhoqo, i-frequency ephantsi, encinci yokunciphisa rhoqo.

 Kufuneka kuqatshelwe ukuba iintlobo kunye neenkcukacha zeiintambo ze-coaxialziyahluka ngokweemeko ezahlukeneyo zosetyenziso kunye neemfuno.Xa ukhetha intambo ye-coaxial, kuyimfuneko ukuqwalasela ukuphindaphinda kwesiginali edlulisiweyo, umgama wothumelo, indawo yokusetyenziswa, uhlobo lojongano kunye nezinye izinto, ukuze ukhethe imodeli efanelekileyo kunye neenkcukacha.