Uyini - isixhumi BNC?

RF coaxial isixhumi BNC lethiwa abasunguli, onjiniyela uPawulu Neal noCharles Konselmena. Igama eliphelele - "insabule Neil - Konselman". Igama elithi "insabule" Lokudabuka French futhi kusho insabule. Isixhumi ivaliwe ngokhiye, owawusegqumeni guns njengesosha elihamba phansi.

BNC isixhumi ingasetshenziswa izifunda ne voltage kuze 500 V futhi imvamisa 3 GHz (wavelength: 10 cm). Lokhu kusebenzisa ezimbili zifane wave ukumelana 50 futhi 75 ohms. Uma BNC isixhumi lisetshenzisiwe ikhebula abafanele, futhi yabo impedances ukufanisa, ukulahlekelwa ngale kwakwakhe ingeqi 0.3 dB.

I ububanzi ikhebula coaxial ngokuvamile It kukhawulwe 8 mm. Indaba for nezixhumi esetshenziswa zethusi ngesiliva noma ngegolide Plating. I ring nangokuvikela Yenziwe ukwaziswa okufanayo kanye aphansi ukulahlekelwa Kwe-dielectric Heating: polytetrafluorethylene, noma polystyrene.

Futhi, BNC-isixhumi ngoba nokunamathisela ngomthofu kumelwe nakanjani babe Teflon ukwahlukanisa. Polystyrene nokunamathisela ngomthofu uzobe gu central okuyingxenye uzoya kuma-axis awo kanye Isixhumi kuyoba yaphela indaba yalo.

Ukuze uvimbele ukwa ikhebula, SARMATT nkampani inyathelisa nezixhumi, imikhawulo okuyinto anemisila ukuphepha entwasahlobo. Lokhu kuqinisekisa ukuthi isibalo disconnections nokuxhumana esingeqile isibalo 500.

BNC nezixhumi okukhulunywa asetshenziselwa yokuxhuma kumadivayisi usebenze imvamisa high (oscilloscopes, ugesi ITP), ethola bese bedlulisela amadivayisi, satellite izitsha, amanethiwekhi cable ithelevishini, isiqophi okuqapha. Ngaphezu kwalokho, lezi nezixhumi asetshenziselwa inhlangano amanethiwekhi zendawo nge-Ethernet, 10Base2 ngisho 100GBase. Ukuze wenze lokhu, sebenzisa T-Isixhumi, "tee". Backbone ixhunywe kwi-eksisi langempela, futhi lapho uphuma khona isezingeni engeyokuqala inethiwekhi (workstation). Ukuphela-Imigudu ebekelwa nezixhumi ngoba abacindezela terminators kubonakala (emile) wave.

Ngokuvamile imishini efakwe isokhethi ( "umama"), futhi sivale ikhebula ( "daddy"). Ngu design BNC-nezixhumi aqondile emincane. Igcine ukusetshenziswa izicelo lapho ikhebula kumelwe wenze goba abukhali, okuyinto kakhulu engathandeki ngoba amakhebuli coaxial. Ngakho-ke, umsebenzi uwela design emincane.

Umqondo womuntu oyedwa Ilokhi insabule ube yimpumelelo kakhulu. Uxhumano threaded kungelula ukusebenzisa, ngoba kuyadingeka ukuze uphendukisa ku-eksisi ikhebula. Isimo ngaso sonke isikhathi kulula, ngisho nut sobunye. uxhumano Threaded Abanye bagibele impahla, badedelane ezimbi futhi zidinga isikhathi esiningi ukuxhuma nokunqamula isixhumi. Compound esekelwe ngomshikisho njengoba ekhaya Imishini, Akwamukelekile ngoba isixhumi Kulula kakhulu ukudonsa aphume slot.

Insabule Kulula kakhulu ukwenza futhi ephule. Kwanele acindezele isokhethi bese uyivule eksisi. Zonke kuthatha esingaphansi yesibili. Ngesikhathi esifanayo, udonsa ipulaki ngeke aphumelele.

Ngakho-ke nezixhumi BNC esikhundleni cishe yonke liphakathi amathuluzi laboratory. Amanethiwekhi computer, ubuye ezifanele kunazo zonke - ngenxa ijubane ukusebenza naye futhi ukungabi nakwenzeka kwento Ukukhipha ngephutha.

Ukumaka BNC kuhlanganisa kukho okulandelayo:

• BNC - nokunamathisela ngomthofu noma crimping;
• BNC-T - tee (i-Ethernet adapters);
• BNC-F - inketho isixhumi nge isikulufa kokuqina;
• BNC-mina - uxhumano izintambo ezimbili.

Nezixhumi kumele kusetshenziswe kuphela okungcono, oxhumana nokunamathisela ngomthofu, futhi igolide sokulinganisa imishini. Lokhu kunciphisa amaphutha kungenzeka. Ukuze amacala asele ukulingana crimp nezixhumi, kodwa kumele ukufakwa kuphela crimp ithuluzi ekhethekile. Inketho yokugcina ishibhile ithuluzi nezixhumi, okusheshayo ukufaka, ngakho-ke kuyinto kwemisebenzi yoMnyango ezingaphezu kuka nokunamathisela ngomthofu.

Ngakho, uma ufuna ukukhweza inethiwekhi yendawo «n» amakhompyutha, lokhu kuzodinga ubuncane enze «2N» uxhumano kwi izintambo, futhi ngezinye izikhathi ezingaphezu.