Ke ala noi o ke apo magnetic inductive| GETWELL

He aha ke ʻano o ka hoʻohana ʻana i ke apo magnetic inductive ? He aha ka ʻokoʻa ma waena o nā mea apo magnetic inductor like ʻole? E ʻike pū kākou.

ʻO ke apo Magnetic kahi mea hoʻohana maʻamau i nā mea hoʻopilikia i nā kaʻa uila, he hopena hoʻopau maikaʻi i ka walaʻau kiʻekiʻe, ua like ia me kahi kānana haʻahaʻa. Hiki iā ia ke hoʻoponopono maikaʻi i ka pilikia o ka hoʻopaʻa ʻana i nā laina mana, nā laina hōʻailona a me nā mea hoʻohui, a loaʻa iā ia kahi ʻano o nā pono, e like me ka maʻalahi o ka hoʻohana, kūpono, kūpono, wahi liʻiliʻi a pēlā aku. ʻO ka hoʻohana ʻana i ka ferrite anti-interference core e kāohi i ka electromagnetic interference (EMI) he ala hoʻokele waiwai, maʻalahi a maikaʻi. Ua hoʻohana nui ʻia i nā kamepiula a me nā lako uila kīwila ʻē aʻe.

ʻO Ferrite kahi ʻano ferrite i hoʻomākaukau ʻia me ka hoʻohana ʻana i nā mea magnetic conductivity kiʻekiʻe e hoʻokomo i hoʻokahi a ʻoi aku paha nā magnesium, zinc, nickel a me nā metala ʻē aʻe ma 2000 ℃. Ma ke alapine haʻahaʻa, hōʻike ka anti-interference magnetic core i kahi impedance inductive haʻahaʻa loa a ʻaʻole pili i ka lawe ʻana i nā hōʻailona pono ma ka laina ʻikepili a i ʻole laina hōʻailona. Ma ke alapine kiʻekiʻe, e hoʻomaka ana mai ka 10MHz, piʻi ka impedance, akā mau ka liʻiliʻi o ka inductance, akā piʻi wikiwiki ka mea resistive. ke hele ka ikehu alapine kiʻekiʻe i loko o ka mea magnetic, e hoʻohuli ka mea kū'ē i kēia ikehu i ka ikehu wela. Ma kēiaʻano, kūkuluʻia kahi kānana haʻahaʻa haʻahaʻa, hiki ke hoʻohaʻahaʻa nui i ka hōʻailona leo leo nui, akā hiki ke nānāʻoleʻia ka impedance i ka hōʻailona pono haʻahaʻa aʻaʻole e pili i ka hana maʻamau o ke kaapuni. .

Pehea e hoʻohana ai i ke apo magnetic o ka anti-interference inductance:

1. E kau pololei ma luna o kahi lako mana a i ʻole he pūʻulu laina hōʻailona. I mea e hoʻonui ai i ke keʻakeʻa a hoʻopaʻa i ka ikehu, hiki iā ʻoe ke pōʻai iā ia i nā manawa he nui.

2. ʻO ke apo magnetic anti-jamming me ke kiʻi kau ʻana he kūpono ia no ka hoʻopau ʻana i ka anti-jamming i uku ʻia.

3. Hiki ke hoʻopaʻa maʻalahi i ke kaula mana a me ka laina hōʻailona.

4. Hiki ke hoʻohana hou ʻia.

5. Hoʻopaʻa ʻia ke ʻano kāleka paʻa ponoʻī, ʻaʻole pili i ke kiʻi holoʻokoʻa o nā mea hana.

ʻO ka ʻokoʻa ma waena o nā mea like ʻole o ka Inductance Magnetic Ring

ʻO ke kala o ke apo magnetic maʻamau-ʻeleʻele, a ʻo ka ʻili o ke apo magnetic he mau ʻāpana maikaʻi, no ka mea, hoʻohana ʻia ka hapa nui o lākou no ka anti-interference, no laila ʻaʻole i pena ʻia i ka ʻōmaʻomaʻo. ʻOiaʻiʻo, hoʻohana ʻia kahi ʻāpana liʻiliʻi e hana i nā inductors, a ua hoʻopuʻi ʻia i ka ʻōmaʻomaʻo i mea e hoʻokō ai i ka insulation maikaʻi aʻe a pale i ka hōʻeha ʻana i ka uea enamelled e like me ka hiki. ʻAʻohe pili o ke kala me ka hana. Nīnau pinepine nā mea hoʻohana, pehea e hoʻokaʻawale ai i waena o nā apo magnetic kiʻekiʻe a me nā apo magnetic haʻahaʻa? ʻO ka maʻamau, ʻōmaʻomaʻo ke apo magnetic haʻahaʻa a he kūlohelohe ke apo magnetic kiʻekiʻe.

Ua manaʻo nui ʻia he kiʻekiʻe ka permeability μ I a me ka resistivity ρ, ʻoiai ʻo ka coercivity Hc a me ka pohō Pc he haʻahaʻa. Wahi a nā hoʻohana ʻokoʻa, aia nā koi ʻokoʻa no ka mahana Curie, ke kūpaʻa o ka mahana, ka hoʻemi hoʻemi permeability a me ka coefficient poho kikoʻī.

ʻO nā hopena nui penei:

(1) Hoʻokaʻawale ʻia nā ferrite manganese-zinc i nā ferrites permeability kiʻekiʻe a me nā ferrites haʻahaʻa haʻahaʻa kiʻekiʻe (kahi i ʻike ʻia ʻo ka mana ferrites). ʻO ka hiʻohiʻona nui o ka permeability kiʻekiʻe mn-Zn ferrite he kiʻekiʻe loa ka permeability.

ʻO ka mea maʻamau, ua kapa ʻia nā mea me μ I ≥ 5000 i nā mea permeability kiʻekiʻe, a ʻo μ I ≥ 12000 ka mea maʻamau e koi ʻia.

ʻO ka Mn-Zn kiʻekiʻe a me ka haʻahaʻa haʻahaʻa ferrite, i ʻike ʻia ʻo ka ferrite mana, hoʻohana ʻia i nā mea ferrite mana. ʻO nā koi o ka hana: ka permeability kiʻekiʻe (ke koi maʻamau μ I ≥ 2000), ke kiʻekiʻe Curie kiʻekiʻe, kiʻekiʻe ʻike nui, kiʻekiʻe saturation magnetic induction intensity a me ka pohō koʻikoʻi ma ke alapine haʻahaʻa.

(2) Ni-Zn ferrite mea, ma ka haʻahaʻa alapine (frequency) ma lalo o 1MHz, ka hana o NiZn ferrites 'aʻole maikaʻi e like me ka MnZn nenoaiu, akā ma luna o 1MHz, no kona kiʻekiʻe porosity a me ka kiʻekiʻe resistivity, ua oi aku ka maikaʻi ma mua o. ʻO ka ʻōnaehana MnZn e lilo i mea momona palupalu maikaʻi i nā noi alapine kiʻekiʻe. ʻO ka resistivity ρ ka mea kiʻekiʻe e like me 108 ω m a me ka liʻiliʻi o ke alapine kiʻekiʻe, no laila ua kūpono ia no ke alapine kiʻekiʻe 1MHz a me 300MHz, a ʻoi aku ka kiʻekiʻe o ka Curie o ka mea NiZn ma mua o MnZn,Bs a hiki i 0.5T 10A/ m Hiki ke liʻiliʻi ka HC e like me 10A / m, no laila ua kūpono ia no nā ʻano inductors, nā mea hoʻololi, nā kānana kānana a me nā coils choke. Loaʻa i nā ferrites kiʻekiʻe ʻo Ni-Zn ka bandwidth ākea a me ka nalowale haʻahaʻa haʻahaʻa, no laila ua hoʻohana pinepine ʻia lākou e like me ka electromagnetic interference (EMI) a me ka radio frequency interference (RFI) cores no ka hoʻohui ʻana o ke kiʻekiʻe frequency electromagnetic interference (EMI) a me nā mea mauna ʻili. Ka mana alapine kiʻekiʻe a me ka anti-interference. Hiki ke hoʻohana ʻia nā ferrites mana Ni-Zn e like me nā hāmeʻa broadband RF e ʻike ai i ka hoʻoili ʻana o ka ikehu a me ka hoʻololi ʻana o ka impedance o nā hōʻailona RF i kahi ākea ākea, me ka palena haʻahaʻa haʻahaʻa o kekahi mau kilohertz a me ka palena alapine kiʻekiʻe o nā tausani megahertz. ʻO ka mea Ni-Zn ferrite i hoʻohana ʻia i ka mea hoʻololi DC-DC hiki ke hoʻonui i ke alapine o ka mana hoʻololi a hoʻemi hou i ka leo a me ke kaumaha o ka mea hoʻololi uila.

ʻO nā apo magnetic maʻamau-ʻelua mau ʻano o nā apo magnetic ma ka laina pili maʻamau, ʻo kekahi ʻo nickel-zinc ferrite magnetic ring, ʻo ka manganese-zinc ferrite magnetic ring, pāʻani lākou i nā kuleana like ʻole.

Loaʻa nā Mn-Zn ferrites i nā hiʻohiʻona o ka permeability kiʻekiʻe a me ke kiʻekiʻe o ka flux kiʻekiʻe, a loaʻa nā hiʻohiʻona o ka haʻahaʻa haʻahaʻa ke haʻahaʻa ka alapine ma mua o 1MHz.

ʻO ka mea i luna nei ka hoʻokomo ʻana i nā inductors magnetic ring, inā makemake ʻoe e ʻike hou aku e pili ana i nā inductors, e ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.