Koranu 290/C17200 waea koranu nikara-parahi mō ngā potentiometer/shunt

Ko te koranu ātete tika o te MANGANIN e tino kitea ana e te iti o te tauwehenga pāmahana i waenga i te 20 me te 50 °C me te āhua parabolic o te pihi R(T), te pumau teitei o te ātete hiko mō te wā roa, te iti rawa o te EMF wera ki te parahi, me ngā āhuatanga mahi pai.
Heoi anō, tera pea ka nui ake ngā kawenga wera i roto i te āhuarangi kore-waikura. Mēnā ka whakamahia mō ngā ātete tino tika me ngā whakaritenga teitei rawa, me āta whakapūmau ngā ātete, ā, kaua te pāmahana tono e neke ake i te 60°C. Mēnā ka nui ake i te pāmahana mahi mōrahi i te hau, ka puta he nekehanga ātete e puta mai ana i ngā tukanga waikura. Nō reira, ka pā kino pea te pumau mō te wā roa. Nō reira, ka paku rerekē pea te ātete me te tauwehenga pāmahana o te ātete hiko. Ka whakamahia hoki hei rauemi whakakapinga utu iti mō te tūhono hiriwa mō te whakairinga whakarewa mārō.

Ngā Whakatakotoranga
Waea manganin/CuMn12Ni2 Waea e whakamahia ana i roto i ngā rheostat, ngā ātete, ngā shunt me ētahi atu waea manganin 0.08mm ki te 10mm 6J13, 6J12, 6J11 6J8
Waea manganin (kawa-waea konupora) he ingoa hokohoko mō tētahi koranu he 86% te parahi, 12% te konupūmā, me te 2-5% te nikara.
E whakamahia ana te waea me te pepa konukōre manganine i roto i te hanga ātete, inā koa ngā shunt ammeter, nā te mea he iti noa te pāmahana e whai hua ana ki te uara o te ātete me te pumau mō te wā roa.

Te Whakamahinga o te Manganin

E whakamahia ana te pepa konumohe me te waea hei hanga i te ātete, inā koa te shunt ammeter, nā te mea he tata kore te pāmahana o te ātete me te pumau mō te wā roa.
He whānuitia te whakamahinga o te koranu whakamahana ātete iti i ahu mai i te parahi i roto i ngā kaiwawao hiko ngaohiko iti, te whakawhiti wera nui, me ētahi atu hua hiko ngaohiko iti. Ko tētahi o ngā rauemi matua o ngā hua hiko ngaohiko iti. Ko ngā āhuatanga o ngā rauemi i hangaia e tā mātou kamupene ko te pumau ātete pai me te pumau teitei. Ka taea e mātou te tuku i ngā momo waea porowhita katoa, ngā rauemi papatahi me ngā rauemi pepa.