I-Pt1000 sisithinteli sobushushu seplatinum esinexabiso lokuxhathisa elahluka ngokweqondo lobushushu. I-"1000″ emva kwe-"Pt" ithetha ukuba inokumelana kwe-1000 ohms kwi-0°C kunye ne-1758.56 ohms kwi-200°C. Ukumelana kwe-PT1000 kuyanda ngokuthe chu njengoko ubushushu bunyuka. I-Pt100 ikwasisithinteli sobushushu seplatinum, apho i-"100″ ibonisa ukumelana kwe-100 ohms kwi-0°C kunye ne-175.86 ohms kwi-200°C. I-Pt500, enye isithinteli sobushushu seplatinum, inokumelana kwe-500 ohms kwi-0°C kunye ne-879.30 ohms kwi-200°C.
Okwangoku, i-Pt1000 isetyenziswa kakhulu ekulinganiseni ubushushu kwiimitha zobushushu. Okokuqala, i-Pt1000 ine-graduation enkulu, evumela ukuchaneka okuphezulu. Okwesibini, i-input impedance yayo ephezulu ivumela ukwanda kwe-excitation voltage, okwandisa uvakalelo. Okwesithathu, i-PT1000 ifanelekile ekulinganiseni utshintsho oluncinci lobushushu (kuba utshintsho lobushushu lwedigri enye lukhokelela kutshintsho olukhulu lokumelana, okwenza kube lula ukuba isekethe elandelayo ibonwe). Ngokwendlela yokusetyenziswa, i-Pt1000 ilula ukuyisebenzisa. Kwiimeko zemizi-mveliso, iimpawu zokumelana ze-Pt100 kunye ne-Pt500 zihlala ziguqulwa zibe ziimpawu zangoku ze-4-20mA ukuze ziqhubeke nokucutshungulwa, ngelixa i-Pt1000 ilinganisa ngokuthe ngqo isignali yokumelana.
Ixesha leposi: Epreli-15-2025