Mea hoʻokomo ʻoki

ʻO ka DC resistance AC he ala maʻalahi ia e ʻōlelo ai, hiki iā ia ke hoʻokaʻawale a hōʻemi i ka hōʻailona AC, a i ʻole e hana i kahi kaapuni resonant me ka resistor a me ka capacitor, hoʻoponopono i ka ʻōlelo a koho i ke alapine. Hiki i ka inductance coil a me ka capacitor i ka like ke hana i ka LC tuning circuit. ʻO ia hoʻi, inā like ke alapine oscillation maoli 0 o ke kaapuni me ke alapine o ka hōʻailona AC ʻole, ua like pū ka inductive reactance a me ka capacitive reactance o ke kaapuni, no laila e oscillates ka ikehu electromagnetic ma waena o ka inductor a me ka capacitor. , ʻo ia ke ʻano resonance o ke kaapuni LC. I ka resonant, ka inductive reactance a me ka capacitive reactance o ke kaapuni ua like a hoohuli, no laila, ka inductive reactance o ka huina o keia kaapuni he uuku, a me ka nui o keia manawa (e pili ana i - 0 AC hōʻailona), no laila, ua loaʻa i ka LC resonant kaapuni. ka hana o ke koho ʻana i ke alapine, a hiki ke koho i ka hōʻailona AC o kahi alapine.

ʻO ke kiʻekiʻe o ke alapine hōʻailona, ​​ʻoi aku ka maʻalahi o ka hoʻouna ʻana. Eia naʻe, ʻaʻohe papa pale o nā laina hōʻailona maʻamau. Lilo kēia mau laina hōʻailona i nā antenna maikaʻi loa no ka loaʻa ʻana o nā ʻano hōʻailona kiʻekiʻe kiʻekiʻe ʻino i ke kaiapuni a puni. Inā hoʻopili ʻia kēia mau hōʻailona ma luna o nā hōʻailona mua i hoʻouna ʻia, e hoʻololi lākou i nā hōʻailona pono i hoʻouna ʻia a hoʻopilikia nui i ka hana maʻamau o nā lako uila, no laila, pono e hōʻemi i ka interference electromagnetic (EM) o nā lako uila. Ma lalo o ka hana a ke apo magnetic, ʻoiai inā e hele mālie ka hōʻailona maʻamau a me ka pono, hiki iā ia ke kāohi i ka hōʻailona interference kiʻekiʻe, a he haʻahaʻa ke kumukūʻai. He mea koʻikoʻi nō hoʻi ka coil inductance magnetic rod i ka leo, ka hōʻailona screening, ka hoʻopaʻa ʻana i kēia manawa a me ka hoʻopaʻa ʻana i ka hawewe electromagnetic.