Lub hauv paus tseem ceeb rau kev txiav txim siab seb qhov chaw txias txias yuav tsum tau ntsuas qhov ntsuas li cas yog qhov pom ntawm cov cim txawv txav xws li kub drift, cov khoom tsis zoo, lossis kev hloov pauv ib puag ncig tam sim ntawd. Yog tias ib qho ntawm cov xwm txheej hauv qab no raug pom, cov txheej txheem calibration yuav tsum pib tam sim ntawd:
1. Cov ntaub ntawv ntsuas kub tsis zoo
Nruam Drift: Kev nyeem ntawv ntawm tib qhov ntsuas qhov ntsuas kub hloov pauv hauv ib qho kev taw qhia rau ob peb teev sib law liag (piv txwv li, +0.5℃/ teev) yam tsis muaj kev hloov kho, nrog rau qhov sib txawv ntau tshaj ± 1 degree.
Kev hloov pauv tsis tu ncua: Qhov ntsuas qhov ntsuas kub tau hloov pauv ntau hauv lub sijhawm luv luv (xws li ± 2℃lossis ntau dua), qhov tsis ruaj khov txawm tias tom qab tshem tawm cov kev cuam tshuam electromagnetic.
Multi-Channel Inconsistency: The difference in thermocouple readings at multiple locations suddenly increases, exceeding the normal range (>0.8 degree).
Piv txwv li: Ib qho chaw txhaj tshuaj molding, uas yog thawj zaug ruaj khov ntawm 280 degree, tsis ntev los no tau nce mus rau 283℃thiab tsis tuaj yeem rov qab tau, qhia tau tias qhov kev them nyiaj txias txias tuaj yeem ua haujlwm tsis zoo.
2. Cov khoom zoo hloov pauv
Batch- cuam tshuam txog qhov tsis xws luag tshwm sim, xws li ua tsis tiav, flash, kev ntxhov siab tawg, lossis qhov deformation;
Lub qhov rooj sib sib zog nqus los yog nce cov khoom txias, tom qab txiav txim siab tawm cov khoom thiab pwm teeb meem, taw tes rau kev tswj qhov kub tsis raug;
Yield decreases >3%, nrog rau kev sib raug zoo rau qhov chaw tswj qhov kub thiab txias.
3. Kev hloov pauv ib puag ncig lossis khoom siv
Modules raug hluav taws xob tawm thiab rov pib dua, hloov chaw, hloov thermocouple, lossis rov txuas dua;
Cov cua txias ua haujlwm tsis zoo hauv lub rhiav ua rau qhov kub thiab txias (piv txwv li, los ntawm 25℃mus rau 35 degree);
Oxidation, corrosion, loosening, lossis ya raws cov cim muaj nyob ntawm qhov txias -kawg xov hlau;
Qhov sib ntxiv ntawm - cov cuab yeej hluav taws xob hauv cheeb tsam (piv txwv li, zaus hloov pauv, lub tshuab cua sov) tuaj yeem ua rau muaj kev cuam tshuam electromagnetic.
4. Lub Sijhawm Tiv Thaiv Kev Txiav Txim Siab: 3-6 lub hlis tau dhau los txij li qhov kev ntsuas dhau los (3 lub hlis pom zoo rau kev ua haujlwm siab-precision ntau lawm, 6 lub hlis rau kev siv dav dav); Siv tus kheej- kuaj kev ua haujlwm ntawm cov qauv xws li MAX31855/MAX6675 los nyeem qhov ntsuas kub hauv qhov sib txuas ntawm SPI thiab muab piv nrog qhov ntsuas qhov ntsuas kub. Calibration yuav tsum yog qhov sib txawv yog> ± 1 degree.
Kev Ua Haujlwm Pom Zoo: Export cov ntaub ntawv keeb kwm siv lub khoos phis tawj software thiab tshuaj xyuas seb tus qauv zoo li cas, thiab seb puas muaj cov kauj ruam twg -xws li dhia lossis lub sijhawm oscillations.
