He kū'ē wela platinum ʻo Pt1000, a e loli kona waiwai kū'ē me ka loli o ka mahana. ʻO ka helu 1000 ma hope o "Pt" e hōʻike ana he 1000 ohms kona waiwai kū'ē ma 0°C, a ʻo kona waiwai kū'ē ma kahi o 1758.56 ohms ma 200°C. Piʻi like ka waiwai kū'ē o PT1000 i ka piʻi ʻana o ka mahana. He kū'ē wela platinum nō hoʻi ʻo Pt100. ʻO ka helu 100 ma hope o "Pt" e hōʻike ana he 100 ohms kona waiwai kū'ē ma 0°C, a ʻo kona waiwai kū'ē ma kahi o 175.86 ohms ma 200°C. He kū'ē wela platinum nō hoʻi ʻo Pt500. ʻO ka helu 500 ma hope o "Pt" e hōʻike ana he 500 ohms kona waiwai kū'ē ma 0°C, a ʻo kona waiwai kū'ē ma kahi o 879.30 ohms ma 200°C.
I kēia mau lā, hoʻohana nui ʻia ʻo Pt1000 no ke ana ʻana i ka mahana i nā mika wela a i ʻole nā calorimeters. ʻO ka mea mua, ʻoi aku ka nui o ka helu puka Pt1000, e hopena ana i ka pololei kiʻekiʻe. ʻO ka lua, ʻoi aku ke kiʻekiʻe o ka impedance input o Pt1000, a hiki ke hoʻonui ʻia ka voltage excitation, a laila e hoʻomaikaʻi ana i ka ʻike. ʻO ke kolu, kūpono ʻo PT1000 no ke ana ʻana i nā loli mahana liʻiliʻi (ʻo ke kumu, i ka wā e loli ai ka mahana ma hoʻokahi kekelē, nui ka loli o ka waiwai kū'ē, a hiki i ke kaapuni ma hope ke ʻike maʻalahi iā ia). Ma ke ʻano o ka hoʻohana ʻana, ʻoi aku ka maʻalahi o Pt1000. Ma nā noi ʻoihana, ma ke ʻano laulā, hoʻololi ʻia nā hōʻailona kū'ē o Pt100 a me Pt500 i nā hōʻailona o kēia manawa 4-20mA, a laila hana ʻia nā hōʻailona. Eia naʻe, ana pololei ʻo Pt1000 i ka hōʻailona kū'ē.
Ka manawa hoʻouna: ʻApelila-01-2025