I-Pt1000 iyi-resistor ye-platinum thermal enenani layo lokumelana elihlukahluka ngokushisa. I-“1000″ ngemuva kwe-“Pt” isho ukuthi inokumelana okungu-1000 ohms ku-0°C kanye nama-ohms angaba ngu-1758.56 ku-200°C. Ukumelana kwe-PT1000 kuyanda kancane kancane njengoba izinga lokushisa likhuphuka. I-Pt100 nayo iyi-resistor ye-platinum thermal, lapho i-“100″ ibonisa ukumelana okungu-100 ohms ku-0°C kanye nama-ohms angaba ngu-175.86 ku-200°C. I-Pt500, enye i-resistor ye-platinum thermal, inokumelana okungu-500 ohms ku-0°C kanye nama-ohms angaba ngu-879.30 ku-200°C.
Njengamanje, i-Pt1000 isetshenziswa kabanzi ekulinganisweni kwezinga lokushisa kumamitha okushisa. Okokuqala, i-Pt1000 ine-graduation enkulu, evumela ukunemba okuphezulu. Okwesibili, i-input impedance yayo ephezulu ivumela ukwanda kwe-accitation voltage, okuthuthukisa ukuzwela. Okwesithathu, i-PT1000 ilungele ukukala ukushintshashintsha kwezinga lokushisa okuncane (njengoba ushintsho lokushisa lwedigri elilodwa luholela ekushintsheni okukhulu kokumelana, okwenza kube lula ukuthi isekethe elandelayo ithole). Ngokuphathelene nokusetshenziswa, i-Pt1000 ilula ukuyisebenzisa. Ezindaweni zezimboni, izimpawu zokumelana ze-Pt100 ne-Pt500 zivame ukuguqulwa zibe izimpawu zamanje ze-4-20mA ukuze zicutshungulwe kabanzi, kuyilapho i-Pt1000 ilinganisa ngqo isignali yokumelana.
Isikhathi sokuthunyelwe: Ephreli-15-2025