Lub hauv paus ntsiab lus ntawm cov thermistor kub ntsuas?

Lub hauv paus ntsiab lus ntawm kev ntsuas kub: Tus mob kub (xws li PT100) yog cov ntsuas kub uas hloov cov nqi kub uas lawv tus nqi tiv thaiv kev hloov pauv nrog kub. Qhov ntsuas kub tau txais cov nqi tiv thaiv (Voltage / tam sim no) los ntawm kev thov kom muaj txiaj ntsig zoo rau qhov ntsuas kub kom ua tiav qhov ntsuas kub. Muaj peb txoj hauv kev ntawm cov thermistor thiab kub systems: ob-xaim system, peb lub xaim hlau, thiab plaub xaim hlau. Ob-kab system yog qhia nyob rau hauv daim duab 1. Lub transmitter thov zam tam sim no kuv mus rau cov xov tooj cua L1, v2 ... ntsuas kub ntsuas. Tus mob kub (xws li PT100) yog cov ntsuas kub uas hloov ntsuas kub ua kev kub siab raws li lub qhov rooj uas lawv tus nqi tiv thaiv kev hloov pauv nrog kub. Qhov ntsuas kub tau txais cov nqi tiv thaiv (Voltage / tam sim no) los ntawm kev thov kom muaj txiaj ntsig zoo rau qhov ntsuas kub kom ua tiav qhov ntsuas kub. Muaj peb txoj hauv kev ntawm cov thermistor thiab kub systems: ob-xaim system, peb lub xaim hlau, thiab plaub xaim hlau.

Vim tias A / D Contrers tsis ncaj qha ntsuas tsis kam, thiab ohmic routing qhia peb tam sim no ntws los ntawm kev ntsuas qhov ntsuas hluav taws xob tsis txaus los ntawm kev tiv thaiv tam sim no.

Due to the principle of thermistor temperature measurement, there is a one-to-one correspondence between temperature and resistance value. Thaum tso tawm qhov kub, nws yog ib qho tsim nyog yuav tsum txuas rau lub thermistor thiab cov khoom siv tawm ntawm cov xov hlau. Cov nqi tiv thaiv tsis kam ntawm cov xov hlau sib txuas yuav ua rau cov hluav taws xob txuas ntxiv hauv kev ntsuas cov kev ntsuas, thiab siv cov xov hlau, qhov yuam kev ntau dua. Ob-hlau txuas txoj kev txuas tsis tuaj yeem kov yeej qhov ua yuam kev no, yog li nws yog qhov tsim nyog los ua kom cov kab tsis kam nyob rau hauv cov software kom tshem tawm qhov yuam kev no los ntawm software them nyiaj. Txawm li cas los xij, cov teeb tsa no yog tas mus li, thiab hauv kev tsis taus, thiab tsis hloov pauv thiab tsis hloov pauv nrog txoj kab kev laus thiab ib puag ncig hloov pauv. Yog li ntawd, cov kev pab them nyiaj Software tseem muaj qhov yuam kev. Peb txoj kev sib txuas hlau tuaj yeem txo lossis tshem tawm qhov yuam kev no nyob rau hauv kab tsis kam, tab sis qhov no tseem ua rau ntawm ob kab ntawm tus thermistor sib npaug. Ntawm chav kawm, nyob rau hauv cov xwm txheej ntawm tib cov ntaub ntawv thiab sib luag ib puag ncig ib puag ncig thiab kab tiv thaiv ntawm ob kab ntawm ob qho ntawm tus cua nab yog sib npaug. Yog li ntawd, txhawm rau txhawm rau txhim kho qhov tseeb, kom tshem tawm cov ntaub ntawv xov hlau, ib puag ncig, piv txwv li ntsuas pom kev ntsuas cov hlau, raws li muaj nyob hauv daim duab hauv qab no. Nws raug nquahu kom siv plaub txoj kev ntsuas plaub ntsuas kom ntau li ntau tau nyob rau hauv cov xwm txheej uas ntsuas siab yog qhov yuav tsum tau ua. Cov ntsiab cai ntawm thawj, thib ob, thiab ntsuas hlau thib peb

Nyob rau hauv ob-xaim system: Kev ua haujlwm ua haujlwm tshaj tawm cov khoom siv ua ntej tas li (kab tiv thaiv kev ua ntej 2rl) kom tau txais tus nqi tiv thaiv RT ntawm lub thermal resistor.

Nyob rau hauv peb txoj kev ntsuas hlau hom: vim tias ob qho chaw muaj hluav taws xob tam sim no muaj qhov sib npaug ntawm cov khoom siv hluav taws xob: [2) (((1) {{{ ntsuas cov hlau txuj ci, vim kev siv dual tas li tam sim no yuav tsum muaj sib npaug ntawm ob qho kev sib npaug ntawm cov cua nabfe, nws yuav tsum tau sib npaug, muaj ib qho kev ua yuam kev me me, muaj ib qho kev ua yuam kev me me, yog li txoj kab Kuj tsis tuaj yeem tshem tawm (tshem tawm), tab sis nws tuaj yeem ua tau raws li qhov yuav tsum tau ua nyob rau qee qhov tseeb