Insinga ya Coaxial ikoreshwa mu kohereza ingufu za RF ziva ku cyambu kimwe cyangwa igice kimwe zijya ku bindi byambu/ibice bya sisitemu. Insinga isanzwe ya coaxial ikoreshwa nk'umurongo wa microwave coaxial. Ubu bwoko bw'insinga bukunze kugira ibyuma bibiri bifite ishusho ya cylindrical bikikije umurongo uhuriweho. Byose bitandukanyijwe n'ibikoresho bya dielectric. Ku nshuro zo hasi, ifishi ya polyethylene ikoreshwa nk'amashanyarazi, naho ku nshuro zo hejuru hakoreshwa ibikoresho bya Teflon.
Ubwoko bw'insinga ya coaxial
Hari ubwoko bwinshi bw'insinga za coaxial bitewe n'uburyo bwo gukora icyuma gikingira n'uburyo bwo kuzikingira bukoreshwa. Ubwoko bw'insinga za coaxial burimo insinga zisanzwe za coaxial nk'uko byasobanuwe haruguru hamwe n'insinga za coaxial zuzuye gazi, insinga za coaxial zifatanye, n'insinga za coaxial zifatanye n'insinga ebyiri.
Insinga zoroshye zo mu bwoko bwa coaxial zikoreshwa mu gutangaza kuri televiziyo antene zakira antene zifite ibyuma byo hanze bikozwe muri foil cyangwa braid.
Ku murongo wa mikoroonde, icyuma cyo hanze kiba gikomeye kandi dielectric izaba ikomeye. Mu nsinga za coaxial zuzuyemo gaze, icyuma cyo hagati gikozwe mu cyuma gito gikingira icyuma, gikoresha na polytetrafluoroethylene. Azote yumye ishobora gukoreshwa nk'ibikoresho bya dielectric.
Muri coax ifatanye, insulator y'imbere izamuka ikikije kondakteri y'imbere, ikikije kondakteri irinzwe kandi ikikije iki gikoresho gikingira.
Mu nsinga ya coaxial ifite uburinzi bubiri, ubusanzwe hatangwa uburinzi bw'imbere n'ubw'inyuma. Ibi birinda ikimenyetso cya EMI n'imirasire iyo ari yo yose iva kuri insinga igira ingaruka kuri sisitemu zegereye aho.
Impedansi iranga umurongo wa Coaxial
Uburyo insinga ya coaxial ikora bushobora kugaragazwa hakoreshejwe formula ikurikira.
Zo = 138 / sqrt (K) * Log (D / d) Ohms
muri,
K ni icyuma gikingira umwuka hagati y’imashini ziyobora umwuka imbere n’inyuma. D ni umurambararo w’imashini ziyobora umwuka inyuma na d ni umurambararo w’imashini ziyobora umwuka imbere.
Ibyiza cyangwa Ibyiza by'Insinga ya Coaxial
Ibyiza cyangwa ibyiza bya coaxial cable bikurikira:
➨Bitewe n'ingaruka z'uruhu, insinga za coaxial zikoreshwa mu gukoresha umuvuduko wo hejuru (>50 MHz) zikoresha umuringa wo hagati. Ingaruka z'uruhu ni ingaruka z'ibimenyetso bikwirakwira ku buso bw'inyuma bw'umuvuduko. Bwongera imbaraga zo gukurura umuvuduko kandi bikagabanya uburemere.
➨Insinga ya Coaxial igura make.
➨Umuyoboro w'inyuma uri mu mugozi wa coaxial ukoreshwa mu kunoza uburyo bwo kugabanya no kurinda. Ibi bikorwa hakoreshejwe agapapuro ka kabiri cyangwa umugozi witwa sheath (kagenwe C2 ku Ishusho ya 1). Ikoti rikora nk'ubwirinzi bw'ibidukikije kandi rikorwamo umugozi wa coaxial nk'irinda umuriro.
➨Ntabwo ikunze kwibasirwa n'urusaku cyangwa kubangamira (EMI cyangwa RFI) kurusha insinga zigoramye.
➨Ugereranyije na twisted pair, ishyigikira uburyo bwo kohereza amajwi bwa bandwidth yo hejuru.
➨Byoroshye gukurura insinga no kuzikoresha bitewe n'uburyo bworoshye bwo kuzikoresha.
➨Ituma habaho uburyo bwo kohereza ubutumwa bwinshi, insinga ya coaxial ifite ibikoresho byiza byo kurinda.
Ibibi cyangwa ibibi bya Coaxial Cable
Ibi bikurikira ni ingaruka mbi za coaxial cable:
➨Ingano nini.
➨Gushyiraho intera ndende birahenze bitewe n'ubunini bwayo n'ubukomere bwayo.
➨Kubera ko insinga imwe ikoreshwa mu kohereza ibimenyetso mu muyoboro wose, iyo insinga imwe ibuze, umuyoboro wose urazima.
➨Umutekano ni ikibazo gikomeye kuko byoroshye kumva insinga ya coaxial uyicagaguye hanyuma ugashyiramo T-connector (ubwoko bwa BNC) hagati y’ibyo byombi.
➨Bigomba kuba bifite ishingiro kugira ngo hirindwe ko habaho kwivanga.
Igihe cyo kohereza: Ukuboza 15-2023
