Ambitu tal-applikazzjoni tar-resister termali PT100 fl-industrija

Although pt100 thermal resistors are widely used in industry, their application is limited by their temperature measurement range. The temperature measurement principle of pt100 thermal resistors is based on the characteristic that the resistance value of conductors or semiconductors changes with temperature. It has many advantages, such as remote transmission of electrical signals, strong stability, good interchangeability and accuracy, iżda teħtieġ eċċitazzjoni tal-qawwa u ma tistax tkejjel il-bidliet fit-temperatura istantanjament . resistors termali industrijali ġeneralment jużaw pt100, pt10, cu50, cu {100. il-firxa tal-kejl tat-temperatura ta 'resistors termali tal-platinu hija ġeneralment minus {200-800 grad, u dak tar-resistors termali tar-ram huwa minus 40 sa 140 { Ir-resistors huma distinti mill-istess tip bħal termokoppji, iżda ma jeħtiġux wajers ta 'kumpens u huma orħos minn termokoppji li ma jagħmlux splużjoni . 1. Il-prinċipju tal-kejl tat-temperatura tar-resistor termali PT100 huwa bbażat fuq il-propjetà li r-reżistenza tal-konduttur (jew semiconductor) tinbidel bit-temperatura . PT100 Resistor termali huwa -00 ~ 500 gradi . komunement użati huma resistors tal-platinu (pt100, pt10, pt10) u resistors tar-ram Cu50 ({{-50-150 gradi) .

2. In-natura tas-sinjal tar-resister termali PT100 . Ir-resister termali nnifsu huwa resister . Il-bidla fit-temperatura tikkawża li r-resister jipproduċi bidla pożittiva jew negattiva tar-reżistenza; Filwaqt li t-termokoppja tipproduċi bidla fil-vultaġġ indott, li tinbidel bil-bidla fit-temperatura .

3. Il-firxa tat-temperatura misjuba miż-żewġ sensuri tar-resister termali PT100 hija differenti . Ir-resister termali ġeneralment jiskopri firxa ta 'temperatura ta' {0-150 gradi, u l-firxa massima tal-kejl tista 'tilħaq madwar 600 grad (ovvjament, it-temperatura negattiva tista' tinstab) .