ʻO ke kinikini 290/C17200 uea nickel-keleawe no nā potentiometers/shunts

ʻO ke koʻokoʻo kū'ē pololei ʻo MANGANIN ka mea i hōʻike kūikawā ʻia e ke koʻikoʻi wela haʻahaʻa ma waena o 20 a me 50 °C me ke ʻano parabolic o ka piʻo R (T), ke kūpaʻa kiʻekiʻe o ke kū'ē uila, ka EMF thermal haʻahaʻa loa e kū'ē i ke keleawe a me nā waiwai hana maikaʻi.
Eia nō naʻe, hiki ke hoʻonui ʻia nā ukana wela i loko o kahi lewa ʻaʻole oxidizing. Ke hoʻohana ʻia no nā resistors kikoʻī me nā koi kiʻekiʻe loa, pono e hoʻopaʻa pono ʻia nā resistors a ʻaʻole pono e ʻoi aku ka mahana o ka noi ma mua o 60°C. ʻO ka ʻoi aku ma mua o ka mahana hana kiʻekiʻe loa i ka lewa e hopena i kahi drift resistance i hana ʻia e nā kaʻina hana oxidizing. No laila, hiki ke hoʻopilikia maikaʻi ʻole ʻia ke kūpaʻa lōʻihi. ʻO ka hopena, hiki ke loli iki ka resistivity a me ke coefficient mahana o ke kū'ē uila. Hoʻohana ʻia hoʻi ia ma ke ʻano he mea pani haʻahaʻa no ka solder kālā no ke kau ʻana i ka metala paʻakikī.

Nā kikoʻī
uea manganin/CuMn12Ni2 Uea i hoʻohana ʻia i nā rheostats, resistors, shunt etc uea manganin 0.08mm a 10mm 6J13, 6J12, 6J11 6J8
Uea manganin (cupro-uea manganese) he inoa hōʻailona kālepa ia no kahi metala o 86% keleawe, 12% manganese, a me 2-5% nickel.
Hoʻohana ʻia ka uea Manganin a me ka foil i ka hana ʻana o ke resistor, ʻoiai nā ammeter shunts, ma muli o kona kūpono ma kahi o ka mahana ʻole o ka waiwai resintance a me ke kūpaʻa lōʻihi.

Ka hoʻohana ʻana o Manganin

Hoʻohana ʻia ka pepa kini a me ka uea Manganin i ka hana ʻana o ke kū'ē, ʻoi aku ka ammeter shunt, ma muli o kona koina wela o ka waiwai kū'ē a me ke kūpaʻa lōʻihi.
Hoʻohana nui ʻia ka mea hoʻomehana haʻahaʻa keleawe i ka mea haki kaapuni haʻahaʻa voltage, ka relay overload thermal, a me nā huahana uila haʻahaʻa voltage ʻē aʻe. ʻO ia kekahi o nā mea nui o nā huahana uila haʻahaʻa voltage. Loaʻa i nā mea i hana ʻia e kā mākou hui nā ʻano o ke kūpaʻa kūpaʻa maikaʻi a me ke kūpaʻa kiʻekiʻe. Hiki iā mākou ke hoʻolako i nā ʻano uea poepoe, nā mea pālahalaha a me nā mea pepa.