Ko te whakarewa tino conductive i roto i te ao

konganuku uara whakaritea tika i to ratou matū me ngā āhuatanga tinana. I roto i te take o te mehua taua, pera i te kawe ia hiko, e kore te mea pera tika te hononga. whakarewa te nuinga conductive, ki te whanganga i te tohu i te pāmahana rūma (+20 ° C), - hiriwa. Ko tauwhāiti te utu tiketike te whakamahi o ngā wāhanga hiriwa i roto i te hiko me te Microelectronics. āhuatanga hiriwa i roto i te taua whakaaro te tono anake i roto i te take o te tikanga mo ōhanga.

Ko te tikanga tinana o te kawe ia

Ko te whakamahi o conductors konganuku he hītori roa-tu. Scientists me Engineers mahi i roto i nga mara o te pūtaiao me te hangarau, te whakamahi i te mana hiko mo te wa roa ki te whakatau i te rauemi mō waea, terminals, hoapā, papa iahiko tāngia , a na i runga i. D. Te tautuhi i te whakarewa tino conductive i roto i te ao e tauturu te rahinga tinana i huaina te kawe ia hiko.

Concept āriponga hoki resistance hiko. kawe ia kīanga ine e pā ana ki te wae ātete, i roto i nei whanganga te pūnaha ao o waeine (SI) i roto i ohms. Unit o te kawe ia hiko i roto i te SI - Siemens. ti'araa Russian o tenei kōwae - Titiro, ao - S. Electric kawe o te 1 cm wahi kua te whatunga hiko ki te ātete o te 1 ohms.

kawe ia

ine te reira i te kaha o te taonga ki te whakahaere o nāianei hiko i huaina kawe ia. Ko te rawa i roto i tenei tohu e te whakarewa tino conductive. Ka taea te whakaritea i tēnei āhuatanga mō tetahi taonga reo ranei instrumentally me he faaiteraa tau. Kawe ia e pā ana porotakaroa kaiwhakahaere roa kōwae me te kōwae rohe ripeka-motu te ki te resistivity o te kaiwhakahaere.

wae Pūnaha kawe ia ko Siemens ia mita - S / m. Hei kitea i roto i nei o te konganuku whakarewa tino conductive i roto i te ao, nui ki te whakarite i to ratou kawe, whakaritea experimentally. Ka taea e tetahi whakatau i te resistivity i te tikanga o te pūrere motuhake - microohmmeter. Enei āhuatanga he kōaro.

kawe o konganuku

Ko te ariā rawa o te nāianei hiko rite te rere whakahaua o matūriki i ako te mea matū atu tahi e hāngai ana i runga i tu arapaki mau karaihe konganuku tūturu. e kore e kawe Akona ina te nāianei hiko i roto i konganuku he irahiko noa me katote, rite tupu te reira i roto i pāpāho wai. I whakapumautia reira experimentally e ka kore e te nāianei puta i roto i konganuku korakora taonga whakawhiti i waenganui i te conductors.

rerekē matū konganuku i te tahi atu here atu noa i te taumata ngota. āhuatanga te pūrere konganuku roto e te aroaro o te tokomaha nui o "te'eki" irahiko. e, ka whai wāhi ki te puka iti o ope hiko whakahaua rere. Na reira, he mea kahore konganuku miharo he whakahiko pai o te iahiko, ka rerekē e taua taunekeneke rāpoi whakarewa tino conductive. I runga i nga āhuatanga o te hanganga karaihe wini whakakahokaho o tetahi whakarewa e hāngai ana ratou āhuatanga motuhake - kawe ia wera tiketike.

Runga i te conductors pai - konganuku

4 whakarewa he uara mahi mō te whakamahi rite e wehea te whakahiko hiko i roto i te raupapa e whai ake nei o te nui me te whakapai kanohi ki te kawe ia, whanganga i roto i te cm / m:

1. Silver - 62.5 miriona.
2. Parahi - 59.5 miriona.
3. Gold - 45.5 miriona.
4. Konumohe - 38 miriona.

Ka taea te kite te reira i e te whakarewa tino conductive - hiriwa. Ko rite te koura, te whakamahia ai ki te whakatū i te whatunga hiko anake i roto i ngā take motuhake, motuhake. Ko te take - te utu tiketike.

Ko parahi, me te konumohe - ko te kōwhiringa tino noa mō ngā hua hiko, me te taura e tika ana ki to ratou ātete iti ki te nāianei hiko, me te utu. Ētahi atu konganuku whakamahia rite conductors onge.

Ngā āhuatanga e awe te kawe o te konganuku

Ahakoa te whakarewa conductive whakaiti i tona kawe ia ka i reira e hakari tahi atu tāpiritanga me poke. I roto i te alloys atu atu "ma" hanganga whakarewa ripekapeka. rere ke te reira i roto i te ofatiraa o te hangarite, kapiti, me te tahi atu mea kohakore,. iti ana te kawe ia kei te me ka nga piki ambient pāmahana.

ātete Nui ake tūturu i roto i alloys whakamahia i roto i ngā huānga whakawera. Ko reira kahore tāpiritanga mo te hanga o ngā huānga whakahaere hiko, e whakamahia hatete konumāmura, fechral me ētahi atu alloys.

whakarewa te nuinga conductive - tenei hiriwa roa utu nui whakamahia e te rei, moni etc Heoi, i roto i te tikanga, me te mea o tona matū motuhake me ngā āhuatanga ōkiko e whakamahia whānuitia ... Hei tauira, haunga te whakamahi i te kōpuku me māpele ki iti paninga hiriwa resistance ārai rōpū whakapā i te piti hāora. maha hanga nga āhuatanga ahurei o te hiriwa, me ona alloys whakamahi o reira tika, ahakoa te utu tiketike.