ʻO Spiral Electric Resistor Nicr Alloy 1 - 5 Mohm No nā mea hoʻomehana ea

1.Material wehewehe nui

Constantanahe keleawe-nickel alloy i ʻike ʻiaEureka,Holomua, aFerry.ʻO ka maʻamau he 55% keleawe a me 45% nickel.ʻO kāna hiʻohiʻona nui kona resistivity, ka mea mau ma luna o kahi ākea o nā mahana.Ua ʻike ʻia nā ʻāpana ʻē aʻe me nā koena wela haʻahaʻa like, e like me ka manganin (Cu₈₆Mn₁₂Ni₂).

No ke ana ʻana i nā kānana nui loa, 5% (50 000 microstrian) a i ʻole, ʻo ka pauku annealed constantan (P alloy) ka mea koho maʻamau.ʻO Constantan ma kēia ʻano he nui loaductile;a, ma nā anana lōʻihi o 0.125 iniha (3.2 mm) a lōʻihi, hiki ke hoʻopaʻa ʻia i>20%.Pono e hoʻomanaʻo, akā naʻe, ma lalo o nā koʻikoʻi kiʻekiʻe cyclic e hōʻike ana ka P alloy i kekahi hoʻololi kūʻokoʻa mau me kēlā me kēia pōʻai, a ke kumu i kahi kūlikeʻolehoʻololi i ka ʻānaʻi kānana.Ma muli o kēia hiʻohiʻona, a me ka manaʻo o ka hāʻule ʻana o ka mānoanoa mua me ka hoʻopaʻa pinepine ʻana, ʻaʻole ʻōlelo maʻamau ka P alloy no nā noi cyclic strain.Loaʻa ka P alloy me nā helu STC o 08 a me 40 no ka hoʻohana ʻana i nā metala a me nā plastics, kēlā me kēia.

2. Hoʻomaka puna a me nā noi

He puna torsion spiral, a i ʻole puna lauoho, i loko o ka uaki hoʻāla.

He puna volute.Ma lalo o ke kaomi ʻana i nā ʻōwili e paheʻe kekahi i kekahi, no laila e loaʻa ai ka huakaʻi lōʻihi.

Nā pūnāwai volute kū pololei o Stuart tank

Piʻi ka pūnāwai i loko o kahi mea hoʻoheheʻe laina i pelu ʻia.

ʻO kahi pahu torsion i wili ʻia ma lalo o ka ukana

Puna lau ma luna o ke kaʻa
Hiki ke hoʻokaʻawale ʻia nā pūnāwai ma muli o ke ʻano o ka hoʻohana ʻana i ka ikaika ukana iā lākou:

ʻO ka pūnāwai hoʻopaneʻe / hoʻonui - ua hoʻolālā ʻia ka pūnāwai e hana me kahi haʻahaʻa haʻahaʻa, no laila e hoʻolōʻihi ʻia ka pūnāwai i ka hoʻopili ʻia ʻana o ka ukana.
Punawai hoʻoemi - ua hoʻolālā ʻia e hana me kahi haʻahaʻa kaomi, no laila e pōkole ka pūnāwai i ka hoʻopili ʻia ʻana o ka ukana.
ʻO ka pūnāwai torsion - ʻaʻole e like me nā ʻano i luna aʻe i kahi ʻano axial ka ukana, ʻo ka ukana i hoʻopili ʻia i kahi pūnāwai torsion he torque a i ʻole ka wili ʻana, a ʻo ka hopena o ka pūnāwai e huli i kahi kihi i ka wā e hoʻopili ʻia ai ka ukana.
Pūnāwai mau - e mau ana ka ukana i kākoʻo ʻia i loko o ka pōʻaiapuni deflection.
Puna wai hoʻololi - ʻokoʻa ke kūpaʻa o ka coil i ka hoʻouka ʻana i ka wā o ka hoʻoemi.
ʻO ka pūnāwai ʻoʻoleʻa like ʻole - hiki ke hoʻololi ʻia ke kūpaʻa ʻana o ka coil i ka ukana no ka laʻana e ka ʻōnaehana hoʻomalu, ʻokoʻa kekahi ʻano o kēia mau pūnāwai i ko lākou lōʻihi e hāʻawi pū ai i ka hiki ke hana.
Hiki ke hoʻokaʻawale ʻia lākou ma muli o ko lākou ʻano:

Puna palahalaha - ua hanaʻia kēiaʻano i ke kila puna palahalaha.
Pūnāwai mīkini - hana ʻia kēia ʻano puna e ka mīkini pahu pahu me ka lathe a / a i ʻole ka hana wili ma mua o ka hana wili.Ma muli o ka mīkini ʻia, hiki i ka pūnāwai ke hoʻohui i nā hiʻohiʻona me ka mea elastic.Hiki ke hana ʻia nā pūnāwai mīkini i nā hihia hoʻouka maʻamau o ka hoʻoemi / hoʻonui, torsion, etc.
Pūnāwai Serpentine - he zig-zag o ka uea mānoanoa - hoʻohana pinepine ʻia i loko o nā mea hoʻolale / lako.

3.Chemical Composition a me ka waiwai nui o Cu-Ni Low Resistance Alloy