He kū'ē wela platinum ʻo Pt1000 nona ka waiwai kū'ē e loli me ka mahana. ʻO ke "1000" ma hope o "Pt" ʻo ia hoʻi he kū'ē o 1000 ohms ma 0°C a ma kahi o 1758.56 ohms ma 200°C. Piʻi mau ke kū'ē o PT1000 i ka piʻi ʻana o ka mahana. He kū'ē wela platinum nō hoʻi ʻo Pt100, me ka "100" e hōʻike ana i ke kū'ē o 100 ohms ma 0°C a ma kahi o 175.86 ohms ma 200°C. ʻO Pt500, kekahi kū'ē wela platinum ʻē aʻe, he kū'ē o 500 ohms ma 0°C a ma kahi o 879.30 ohms ma 200°C.
I kēia manawa, hoʻohana nui ʻia ʻo Pt1000 no ke ana ʻana i ka mahana i nā mika wela. ʻO ka mea mua, hōʻike ʻo Pt1000 i kahi puka nui aʻe, e hiki ai ke kiʻekiʻe aʻe ka pololei. ʻO ka lua, ʻo kona impedance input kiʻekiʻe e ʻae ai i ka hoʻonui ʻia o ka voltage excitation, e hoʻonui ana i ka ʻike. ʻO ke kolu, kūpono ʻo PT1000 no ke ana ʻana i nā loli liʻiliʻi o ka mahana (ʻoiai ʻo ka loli o ka mahana hoʻokahi kekelē e alakaʻi ai i kahi loli kū'ē nui, e maʻalahi ai ka ʻike ʻana o ke kaapuni ma hope). Ma ke ʻano o ka noi, ʻoi aku ka maʻalahi o ka hoʻohana ʻana iā Pt1000. Ma nā wahi ʻoihana, hoʻololi pinepine ʻia nā hōʻailona kū'ē o Pt100 a me Pt500 i nā hōʻailona o kēia manawa 4-20mA no ka hana hou ʻana, ʻoiai ʻo Pt1000 e ana pololei i ka hōʻailona kū'ē.
Ka manawa hoʻouna: ʻApelila-15-2025