1.Dab tsi yog cov ntaub ntawv tseem ceeb rau calibration?
Txheem thickness daim hlau (cov qauv qauv): Cov no yog cov cuab yeej calibration tseem ceeb. Lawv feem ntau yog ib txheej ntawm cov ntawv nyias nyias calibrated thiab ntawv pov thawj los ntawm ib lub koom haum metrology (xws li National Institute of Metrology, Tuam Tshoj), npog qhov ntsuas qhov ntsuas. Cov paib txheem yuav tsum muaj qhov tseeb traceability thiab tsis paub tseeb.
Cov kauj ruam thaiv: Siv rau ntau -point calibration, xyuas cov ntsuas qhov sib npaug ntawm tag nrho cov kev ntsuas.
Zeroing phaj / puag phaj: Siv los tsim qhov zero point ntawm kev ntsuas kev siv.
2.Dab tsi yog lub ntsiab calibration kauj ruam?
Ntxuav thiab Preheating: Xyuas kom lub ntsuas lub taub hau lub qhov rais kho qhov muag (tsis yog -kev tiv tauj) lossis kev sojntsuam (hu rau) tsis muaj roj thiab oxide nplai. Nyob rau tib lub sijhawm, xyuas kom meej tias lub ntsuas hluav taws xob tau qhib thiab preheated rau lub xeev kev ua haujlwm ruaj khov.
Zero-Point Calibration: Muab lub ntsuas ntsuas lub taub hau rau hauv ib qho piv txwv- lub xeev dawb (lossis muab tso rau ntawm qhov sib txawv ntawm qhov siab -dawb substrate) thiab kho cov nqi tso tawm kom xoom.
Range Calibration (Ntau-point Calibration):
Muab ib lub phaj txheem ntawm lub thickness paub nyob rau hauv qhov ntsuas.
Rau cov khoom siv tsis yog -cov cuab yeej tiv tauj (xws li X- rays), qhov ntsuas ntsuas qhov hluav taws xob txo qis dhau los ntawm cov phaj hlau thiab muab piv rau qhov paub thickness ntawm tus qauv phaj, yuav kho qhov nkhaus sab hauv.
Rau cov cuab yeej tiv tauj, calibration zoo li qub yog ua los ntawm cov qauv phaj los simulate kev ua haujlwm hauv online, sib piv cov ntsuas kev hloov pauv nrog tus qauv tus nqi.
Feem ntau, tsawg kawg yog peb qhov sib txawv thicknesses ntawm cov qauv phaj (qis, nruab nrab, thiab siab) yog xav tau rau calibration kom raug nyob rau hauv tag nrho cov ntau yam.
3.Yuav ua li cas linearity thiab repeatability raug txheeb xyuas?
Rov ua dua qhov ntsuas tib lub phaj thiab soj ntsuam qhov hloov pauv ntawm cov ntaub ntawv (repeatability); ntsuas cov ntsiab lus sib txawv thiab soj ntsuam qhov sib xws (linearity).
4.Puas tus qauv phaj yuav tsum tau sib haum nrog cov khoom raug kuaj?
Yog tias ntsuas txias- cov ntawv yob steel, cov ntawv txheem yuav tsum tau ua los ntawm cov hlau. Yog tias ntsuas aluminium alloys lossis tooj liab, ib daim ntawv txheem ntawm cov khoom siv sib xws yuav tsum tau siv.
5.Dab tsi yog cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov?
Environmental Consistency: Lub ambient kub thiab av noo thaum lub sij hawm calibration yuav tsum nyob ze li sai tau rau qhov chaw tsim khoom, vim qhov kub hloov pauv tuaj yeem ua rau thermal expansion ntawm steel phaj thiab ntsuas drift.
Periodic Mandatory Verification: Raws li lub teb chaws cov kev cai metrological, thickness gauges siv rau kev lag luam kev sib haum xeeb los yog kev tswj kom zoo yog yuav tsum tau ua pov thawj thiab yuav tsum tau soj ntsuam raws sij hawm (feem ntau ib xyoos ib zaug) los ntawm ib tug raws li txoj cai lub koom haum metrology, uas yuav muab ib daim ntawv pov thawj pov thawj.
Integrated Testing thiab Validation: Tom qab ntsuas qhov ntsuas thickness, nws yog ib qho tsim nyog yuav tsum tau ua cov kev ntsuam xyuas kev sib xyaw ua ke nrog cov txheej txheem tuab tsis siv neeg kom tswj tau qhov tseeb.