Pt1000 yog platinum thermal resistor, thiab nws tus nqi tsis kam yuav hloov pauv nrog qhov hloov pauv ntawm qhov kub thiab txias. Tus lej 1000 tom qab "Pt" qhia tias nws tus nqi tsis kam yog 1000 ohms ntawm 0 ° C, thiab nws tus nqi tsis kam yog kwv yees li 1758.56 ohms ntawm 200 ° C. Tus nqi tsis kam ntawm PT1000 nce uniformly thaum qhov kub nce. Pt100 kuj yog platinum thermal resistor. Tus lej 100 tom qab "Pt" qhia tias nws tus nqi tsis kam yog 100 ohms ntawm 0 ° C, thiab nws tus nqi tsis kam yog kwv yees li 175.86 ohms ntawm 200 ° C. Pt500 kuj yog platinum thermal resistor. Tus lej 500 tom qab "Pt" qhia tias nws tus nqi tsis kam yog 500 ohms ntawm 0 ° C, thiab nws tus nqi tsis kam yog kwv yees li 879.30 ohms ntawm 200 ° C.
Niaj hnub nim no, Pt1000 feem ntau yog siv rau kev ntsuas kub hauv cov ntsuas kub lossis calorimeters. Ua ntej, tus lej kawm tiav Pt1000 loj dua, ua rau muaj qhov tseeb dua. Qhov thib ob, qhov nkag impedance ntawm Pt1000 siab dua, thiab qhov hluav taws xob excitation tuaj yeem nce ntxiv, yog li txhim kho qhov rhiab heev. Qhov thib peb, PT1000 yog qhov tsim nyog rau kev ntsuas qhov hloov pauv kub me me (qhov laj thawj yog tias thaum qhov kub hloov pauv los ntawm ib degree, qhov kev hloov pauv ntawm tus nqi tsis kam yog qhov loj heev, thiab lub voj voog tom ntej tuaj yeem ntes tau yooj yim). Hauv kev siv, Pt1000 kuj yooj yim dua. Hauv kev siv hauv kev lag luam, feem ntau, cov teeb liab tsis kam ntawm Pt100 thiab Pt500 raug hloov mus rau hauv 4-20mA tam sim no teeb liab, thiab tom qab ntawd cov teeb liab raug ua tiav. Txawm li cas los xij, Pt1000 ncaj qha ntsuas cov teeb liab tsis kam.
Lub sijhawm tshaj tawm: Plaub Hlis-01-2025