O te hangarau, Hikohiko
Measurement o te resistance whenua - he tu'unga tika mō te mahi pūmau o te tipu te mana
He maha ngā tikanga rerekē mō te inenga o te resistance whenua e whakamahia ana mō te mātanga whiriwhiri, i runga i te maha o ngā āhuatanga pērā i te āhua me te tikanga o te ine rānei, nga parenga ki te ruri, te tika whanaunga te oioi o inenga.
kawea ātete whenua inenga i roto i ki te titiro i tona huru. kawea te tukanga rawa o te tango i te inenga i roto i roto i te maha ngā wāhanga:
- Te uiui e te wahi kitea o te whenua, ara, kei te tirohia te ara iahiko uhupoho, te tika o te pūrere pūhui uhupoho ki te mains. Tirotiro hononga me ngā wāhanga uhupoho. Ehara i whakaaetia kapiti i runga i mekameka hononga, me te whakakaewa pokekore rite te pai kia rite ki te reta o te tikanga tāutanga whenua te uiui.
- Kawea i roto i te mahi faaineineraa mō te e mau ana i roto i te inenga. Ko ētahi o ēnei ko te hanga o te ara iahiko o nāianei tāwhaiwhai, e te mea e kore e iti iho i te 40 mita i te pūrere uhupoho whakapumautia te he kawehiko whenua pŭpŭ tauturu, hono e te waea ki te mea ruri. Te kawehiko tuarua, ka karanga te pūmanawa whakaturia ko rite ki te tautoko o te iti rawa 20 mita, a hoki i te tikanga o waea hono ki te mita.
- Ko te atamira whakamutunga ko te pūrere ine uhupoho ātete, hono nei waea te ki te mita me te -nuku, whakawhiti, a ka kua kawea i roto i ātete koropiko whanganga tika.
Ua itehia e, e anake i roto i te rangi maroke ki oneone haumākū iti i nga reiti rawa o resistivity, i te mea ko reira tūtohu aha ki te whakamahi i taua tikanga huarere ka whakamahere i te inenga o te parenga whenua. O te akoranga, kawea taua mahi i roto i roto i ngā āhuatanga huarere katoa me i ngā wā rerekē o te tau, no te nei i reira he āhuatanga tau ture, tango ki pūkete te take rangi i roto i te tātai resistance. Ki te kōrero tatou e pā ana ki te wā o ratou whakatinanatanga, whakarato reira mo te tirohanga ā-tau o te ātete hiko o te whenua, a i muri i te whakahaere i hanga anō o te whenua ranei.
Ēnei mahi ngā tohunga, rawa whakangungua, e matau me pehea ki te tirohia i te uhupoho waiwai, me te he i te waere haumarutanga tika mō te haumaru hiko.
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