Nā hiʻohiʻona o ke kaula coaxial

Uea coaxialHe ʻano uwea i hoʻolaʻa ʻia i ka ʻikepili a me ka hoʻouna ʻana i ka hōʻailona, ​​ʻo ia hoʻi ka mea alakaʻi kikowaena, ka papa hoʻopulapula, ka ʻāpana pale mesh, ka papa hoʻokaʻawale o waho a me ka ʻāpana sheath.ʻO ka mea hoʻokele waena o ke kaula coaxial he uea metala, hana mau ʻia me ke keleawe a i ʻole aluminika, hana pinepine ʻia ka ʻāpana insulating me ka polypropylene a i ʻole polyethylene, a ua uhi ʻia ka papa pale mesh e ka papa insulating a hana ʻia me ka uea keleawe a i ʻole alumini alumini. .Uea coaxialhoʻohana nui ʻia i nā pūnaewele kamepiula, ka hoʻouna ʻana i nā hōʻailona TV, nā ʻōnaehana palekana, nā lekiō a me nā kahua ʻē aʻe.

Eia kekahi mau hiʻohiʻona nui ouwea coaxial:

 1. ʻAi-electromagnetic interference: ʻO ka ʻāpana pale mesh o loko o ke kaula coaxial hiki ke pale pono i ka hoʻopili electromagnetic waho a hōʻoia i ka paʻa a me ka hilinaʻi o ka lawe ʻana i ka hōʻailona.

 2. Nui mana: ʻO ka mea alakaʻi kikowaena o kauwea coaxialhe uwea metala, conductivity maikaʻi, mana nui, hiki ke hoʻouna i nā hōʻailona alapine kiʻekiʻe.

 3. ʻOi aku ka mamao o ka hoʻouna ʻana i ka hōʻailona: ʻoi aku ka mamao o ka hoʻouna ʻana i ka hōʻailona o ke kaula coaxial ma mua o ka mamao o ka uwea maʻamau, a ʻo ka mamao o ka hoʻouna ʻana ma ke ʻano maʻamau mai kekahi mau kilomita a hiki i nā haneli mau kilomita.

 4.ʻO ka pale ʻana o ka sheath layer: hiki i ke kaula coaxial ke hoʻopololei i waho a me ka sheath layer ke pale pono i ka hale kikowaena uwea a hoʻonui i ke ola lawelawe o ke kaula.

 5.ʻO ka impedance hiʻohiʻona: ʻo ka mea nui o ke kaula coaxial ka mea i loko a me waho o nā conductors ʻelua, ʻo ka mea i kēia manawa ma o ka conductor e hoʻohua i ke kūʻē a me ka inductance, a me ka conductance a me ka capacitance ma waena o nā conductors e hana ʻia, a māhele ʻia ma ka laina, ʻike ʻia hoʻi. kope hāʻawi ʻia.

ʻO ka hopena, ʻoi aku ka kiʻekiʻe o ka impedance hiʻohiʻona maoli o ke kaula coaxial ma mua o ke kumu waiwai i ka wā e hoʻopili ai i ka ʻōnaehana hōʻike.No laila, i mea e pale aku ai i ka hōʻailona hōʻailona noʻonoʻo i hana ʻia e kēia kūlana a hōʻoia i ka hopena maikaʻi loa o ka hoʻouna ʻana, koi ʻia ka impedance ukana terminal e kūlike me ka impedance hiʻohiʻona i ka hiki.

 6.Nā hiʻohiʻona atenuation: The attenuation features ofuwea coaxialʻike maʻamau ʻia e ka attenuation mau, ʻo ia ka mea like me nā decibels o ka hōʻailona hōʻailona o kēia manawa no kēlā me kēia lōʻihi.ʻO ka maʻamau o ka attenuation o ke kaula coaxial e like me ke alapine hana o ka hōʻailona, ​​ʻo ia hoʻi, ʻoi aku ka kiʻekiʻe o ke alapine i hana ʻia, ʻoi aku ka nui o ka attenuation mau, ʻoi aku ka haʻahaʻa, ʻoi aku ka liʻiliʻi o ka attenuation mau.

 Pono e hoʻomaopopo i nā ʻano a me nā kikoʻī ouwea coaxialʻokoʻa e like me nā hiʻohiʻona noiʻi like ʻole a me nā pono.Ke koho ʻana i kahi kaula coaxial, pono e noʻonoʻo i ke alapine o ka hōʻailona i hoʻouna ʻia, ka mamao o ka hoʻouna ʻana, ke ʻano o ka hoʻohana ʻana, ke ʻano o ka interface a me nā mea ʻē aʻe, i mea e koho ai i ke kumu kūpono a me nā kikoʻī.