A na-eji eriri Coaxial bufee ike RF site n'otu ọdụ ụgbọ mmiri ma ọ bụ akụrụngwa gaa na ọdụ ụgbọ mmiri/akụkụ ndị ọzọ nke sistemụ.A na-eji eriri coaxial ọkọlọtọ dị ka eriri coaxial microwave.Ụdị waya a na-enwekarị ndị nduzi abụọ n'ụdị cylindrical gburugburu axis nkịtị.A na-ekewa ha niile site na ihe dielectric.N'ebe dị ala, a na-eji ụdị polyethylene eme ihe dị ka dielectric, na n'ogo dị elu, a na-eji ihe Teflon eme ihe.
Ụdị nke eriri coaxial
Enwere ọtụtụ ụdị nke eriri coaxial dabere na ihe nrụpụta na ụzọ mkpuchi eji.Ụdị eriri nke coaxial na-agụnye eriri coaxial ọkọlọtọ dịka akọwara n'elu yana ikuku coaxial jupụtara na gas, eriri coaxial articulated, na eriri coaxial mkpuchi bi-waya.
A na-eji eriri coaxial na-agbanwe agbanwe na mgbasa ozi telivishọn na-anata antennas nwere ndị na-eduzi mpụta nke foil ma ọ bụ braid.
N'oge ugboro microwave, onye na-eduzi mpụta na-esi ike na dielectric ga-esi ike.N'ime eriri coaxial jupụtara na gas, onye na-eduzi etiti bụ nke ihe mkpuchi seramiiki dị mkpa, na-ejikwa polytetrafluoroethylene.Enwere ike iji nitrogen kpọrọ nkụ mee ihe dị ka ihe dielectric.
Na coax a na-ekwu okwu, a na-ebuli insulator dị n'ime gburugburu onye nduzi ime.gburugburu onye nduzi mkpuchi na gburugburu n'ọbọ mkpuchi mkpuchi a.
N'ime eriri coaxial nwere nchekwa abụọ, a na-enyekarị nchekwa nchekwa abụọ site n'inye ọta dị n'ime na ọta mpụta.Nke a na-echebe mgbama sitere na EMI yana radieshon ọ bụla sitere na eriri na-emetụta sistemu dị nso.
Ihe njiri mara ahịrị Coaxial
Enwere ike ikpebi ihe mgbochi njirimara nke eriri coaxial bụ isi site na iji usoro a.
Zo = 138/sqrt (K) * Ndekọ (D/d) Ohms
n'ime,
K bụ dielectric mgbe niile nke insulator n'etiti ndị na-eduzi ime na mpụta.D bụ dayameta nke onye nduzi dị n'èzí na d bụ dayameta nke onye nduzi n'ime.
Uru ma ọ bụ Uru nke Coaxial Cable
Ndị a bụ uru ma ọ bụ uru nke eriri coaxial:
N'ihi mmetụta akpụkpọ ahụ, eriri coaxial ejiri na ngwa ugboro dị elu (> 50 MHz) na-eji mkpuchi ọla kọpa nke onye na-eduzi etiti.Mmetụta akpụkpọ ahụ bụ ihe si na mgbama dị elu na-agbasa n'elu elu nke onye nduzi.Ọ na-abawanye ike ike nke eriri ma belata ibu.
➨Coaxial cable na-efu obere ego.
➨ A na-eji onye na-eduzi mpụta na eriri coaxial iji meziwanye attenuation na mkpuchi.A na-arụzu nke a site na iji foil nke abụọ ma ọ bụ braid a na-akpọ n'ọbọ (C2 ahapụtara na foto 1).Jaketị ahụ na-eje ozi dị ka ọta gburugburu ebe obibi ma na-eme ya ka ọ bụrụ eriri coaxial dị mkpa dị ka ọkụ ọkụ.
➨Ọ naghị anabata mkpọtụ ma ọ bụ nnyonye anya (EMI ma ọ bụ RFI) karịa eriri jikọtara ọnụ gbagọrọ agbagọ.
➨ E jiri ya tụnyere ụzọ gbagọrọ agbagọ, ọ na-akwado mgbasa ozi bandwit dị elu.
➨ Ọ dị mfe iji waya na gbasaa n'ihi mgbanwe.
➨ Ọ na-enye ohere ọnụego nnyefe dị elu, eriri coaxial nwere ihe nchekwa dị mma.
Ọdịmma ma ọ bụ adịghị ike nke Coaxial Cable
Ndị a bụ ọghọm nke eriri coaxial:
➨ Nnukwu nha.
➨Nwụnye n'ebe dị anya na-efu ọnụ n'ihi ọkpụrụkpụ ya na isi ike ya.
➨ Ebe ọ bụ na a na-eji otu eriri na-ebufe akara na netwọkụ ahụ niile, ọ bụrụ na otu eriri ada ada, netwọkụ niile ga-agbada.
➨ Nchekwa bụ nnukwu nchegbu n'ihi na ọ dị mfe ige ntị na coaxial cable site na imebi ya na itinye a T-njikọ (BNC ụdị) n'etiti abụọ.
➨ Ga-agbanyerịrị iji gbochie ndabichi.
Oge nzipu: Dec-15-2023
