ʻO ka pahu hau
Hoʻokumu kumu a me ka haku mele
Mea uwea:ʻO ka maʻamau he keleawe a alumini paha (ke kūʻokoʻa haʻahaʻa, conductivity kiʻekiʻe), hiki ke uhi ʻia i ke kālā a i uhi ʻia me ka pena insulating.
ʻO ke ʻano wili:spiral winding (hoʻokahi a i ʻole multi-layer), hiki ke ʻano he cylindrical, pālahalaha (PCB coil) a i ʻole apo.
Hoʻolālā kumu ʻole:hoʻopiha ʻia ka coil i ka ea a i ʻole nā mea kākoʻo non-magnetic (e like me ka plastic frame) e pale aku i ka nalowale o ka hysteresis a me ka hopena saturation i hoʻokumu ʻia e ke kumu hao.
Nā palena nui a me ka hana
Inductance:haʻahaʻa (hoʻohālikelike ʻia me nā wili koʻikoʻi hao), akā hiki ke hoʻonui ʻia ma ka hoʻonui ʻana i ka helu o nā huli a i ʻole ka ʻāpana coil.
He kumu waiwai (waiwai Q):ʻOi aku ka nui o ka waiwai Q ma nā alapine kiʻekiʻe (ʻaʻohe iron core eddy current loss), kūpono no nā noi lekiō (RF).
Māhele capacitance:Hiki i ka coil turn-to-turn capacitance ke hoʻopili i ka hana kiʻekiʻe, a pono e hoʻopaneʻe ʻia ka lewa wili.
Kū'ē:Hoʻoholo ʻia e ka mea uea a me ka lōʻihi, ʻo DC resistance (DCR) pili i ka hoʻohana ikehu.
Nā pōmaikaʻi a me nā pōʻino
Pono:
ʻO ka hana kiʻekiʻe-frequency maikaʻi loa: ʻaʻohe poho hao, kūpono no ka RF a me ka microwave.
ʻAʻohe saturation magnetic: inductance paʻa ma lalo o ka manawa kiʻekiʻe, kūpono no ka pulse a me nā hiʻohiʻona kiʻekiʻe.
Māmā: hale maʻalahi, kaumaha māmā, kumu kūʻai haʻahaʻa.
Nā hemahema:
ʻO ka inductance haʻahaʻa: ʻoi aku ka liʻiliʻi o ka waiwai inductance ma mua o ka nui o nā coils hao ma ka leo like.
ʻO ka ikaika o ke kahua mākēneki nāwaliwali: koi ʻia ka ʻoi aku ka nui o kēia manawa a ʻoi aku paha ka huli ʻana e hoʻohua i ke kahua hoʻokahi.
Nā hiʻohiʻona noi maʻamau
Kaapuni alapine kiʻekiʻe:
RF choke, LC resonant circuit, antenna matching network.
Nā mea ʻike a me ka ʻike:
Nā mea ʻike metala, nā mea ʻike maka ʻole o kēia manawa (Rogowski coils).
Lapaʻau lapaʻau:
ʻO nā wili liʻiliʻi no nā ʻōnaehana MRI (e pale i ka hoʻopili ʻana i ka magnetic).
Mea uila uila:
ʻO nā mea hoʻololi alapine kiʻekiʻe, nā wili hoʻopiʻi uila (e pale i ka wela o ka ferrite).
Nā kahua noiʻi:
Helmholtz coils (no ka hooulu ana i ka like ole o na mala magnetic).
FAQ
A: He hale hana mākou.
A: Loaʻa iā mākou he 20 mau makahiki o ka ʻike hana puna a hiki ke hana i nā ʻano punawai he nui. Kūʻai ʻia ma ke kumu kūʻai kūʻai.
A: ʻO ka maʻamau 5-10 mau lā inā loaʻa nā waiwai. 7-15 mau lā inā ʻaʻole i loko o ka waihona, ma ka nui.
