Hauv kev ntsuas ntsuas thiab ntsuas ntsuas, xaiv qhov hnyav yog qhov tseem ceeb rau kev ntsuas qhov tseeb. Txawm hais tias siv rau high-precision hluav taws xob sib npaug calibration lossis kev siv ntsuas kev lag luam, xaiv qhov hnyav uas tsim nyog tsis tsuas yog cuam tshuam rau kev ntseeg tau ntawm kev ntsuas ntsuas tab sis tseem cuam tshuam ncaj qha rau kev ua haujlwm ntawm kev ua haujlwm thiab kev saib xyuas cov qauv ntsuas. Yog li ntawd, kev nkag siab txog cov qib precision sib txawv, lawv qhov kev thov ntau yam, thiab yuav ua li cas xaiv qhov hnyav uas tsim nyog yog ib lub ntsiab lus tseem ceeb rau txhua tus kws ua haujlwm metrology thiab cov neeg siv khoom.
I. Qhov hnyav Classification thiab Precision Requirements
Qhov hnyav tau muab cais raws li International Organization of Legal Metrology (OIML) tus qauv "OIML R111". Raws li tus qauv no, qhov hnyav tau muab faib ua ntau qib xws li qhov siab tshaj plaws mus rau qhov siab tshaj plaws. Txhua qib muaj nws cov xwm txheej thov tshwj xeeb thiab qhov ua yuam kev siab tshaj plaws (MPE). Qhov tseeb ntawm cov qib sib txawv, cov khoom siv, ib puag ncig tsim nyog, thiab cov nqi sib txawv.
1. Piav Qhia Qhov Ntsuas Qhov Ntsuas
(1)E1 thiab E2 Qib: Ultra-High Precision Nyhav
E1 thiab E2 qib luj luj yog nyob rau hauv ultra-high precision qeb thiab feem ntau yog siv nyob rau hauv lub teb chaws thiab thoob ntiaj teb kev ntsuas ntsuas. Qhov siab tshaj plaws tso cai yuam kev rau qib E1 qhov hnyav feem ntau yog ± 0.5 milligrams, thaum qib E2 qhov hnyav muaj MPE ntawm ± 1.6 milligrams. Cov khoom hnyav no yog siv rau kev sib kis tus qauv nruj tshaj plaws thiab feem ntau pom muaj nyob rau hauv cov chaw soj nstuam siv, cov chaw tshawb fawb, thiab cov txheej txheem kev ntsuas lub teb chaws zoo. Vim lawv qhov tseeb heev, cov luj no feem ntau yog siv rau calibrating precision instruments xws li analytical balances thiab reference balances.
(2)Qib F1 thiab F2: Siab Precision Nyhav
F1 thiab F2 qhov hnyav qib yog dav siv nyob rau hauv high-precision laboratories thiab kev cai lij choj ntsuas ntsuas. Lawv tsuas yog siv rau kev ntsuas cov khoom siv hluav taws xob siab, ntsuas ntsuas ntsuas, thiab lwm yam khoom siv ntsuas ntsuas. F1 qib qhov hnyav muaj qhov yuam kev siab tshaj plaws ntawm ± 5 milligrams, thaum F2 qib qhov hnyav tau tso cai yuam kev ntawm ± 16 milligrams. Cov luj no feem ntau ua hauj lwm hauv kev tshawb fawb, tshuaj ntsuam xyuas, thiab kev tswj xyuas qhov zoo, qhov kev ntsuas siab yuav tsum tau ua tab sis tsis nruj npaum li qib E1 thiab E2.
(3)M1, M2, thiab M3 Qib: Muaj thiab Ua Lag Luam Nyhav
M1, M2, thiab M3 qhov hnyav yog feem ntau siv hauv kev tsim khoom thiab kev lag luam kev lag luam. Lawv tsim nyog rau calibrating loj industrial scales, tsheb heavybridges, platform scale, thiab coj mus muag hluav taws xob teev. M1 qib qhov hnyav muaj qhov tso cai yuam kev ntawm ± 50 milligrams, M2 qib qhov hnyav muaj qhov yuam kev ntawm ± 160 milligrams, thiab M3 qib qhov hnyav pub rau qhov yuam kev ntawm ± 500 milligrams. Cov M series hnyav no feem ntau siv nyob rau hauv kev lag luam thiab kev thauj mus los ib puag ncig, qhov twg cov kev xav tau qis dua, feem ntau yog rau cov khoom hnyav thiab cov khoom lag luam.
2. Kev xaiv cov khoom: Stainless hlau vs. Cast Iron Weights
Cov khoom ntawm qhov hnyav ncaj qha cuam tshuam rau lawv cov kav ntev, ruaj khov, thiab tsim nyog rau kev siv sib txawv. Cov khoom siv tshaj plaws rau qhov hnyav yog stainless hlau thiab cam khwb cia hlau, txhua qhov tsim nyog rau kev ntsuas sib txawv thiab ib puag ncig.
(1)Stainless hlau luj:
Stainless hlau luj tshib muaj kev tiv thaiv corrosion thiab superior mechanical zog, nrog ib tug du nto uas yooj yim los ntxuav. Vim lawv qhov sib xws thiab kev ruaj ntseg, stainless hlau luj yog zoo tagnrho rau E1, E2, F1, thiab F2 qib thiab yog dav siv nyob rau hauv precision ntsuas thiab kev tshawb fawb ib puag ncig. Cov luj no muaj zog thiab tuaj yeem tswj tau lawv qhov tseeb rau lub sijhawm ntev hauv qhov chaw tswj hwm.
(2)Cast Iron Weights:
Cam khwb cia hlau hnyav feem ntau yog siv nyob rau hauv M1, M2, thiab M3 qib thiab muaj nyob rau hauv kev lag luam ntsuas thiab kev lag luam kev lag luam. Tus nqi-zoo thiab siab ceev ntawm cam khwb cia hlau ua rau nws yog ib qho khoom siv rau cov khoom hnyav hnyav siv hauv tsheb thauj khoom hnyav thiab cov khoom siv hnyav. Txawm li cas los xij, cam khwb cia hlau hnyav yuav muaj qhov ntxhib saum npoo, uas ua rau oxidation thiab paug, thiab yog li yuav tsum tau tu thiab tu.
II.Yuav Ua Li Cas Xaiv Qhov Ntsuas Qhov Ntsuas Zoo
Thaum xaiv qhov tsim nyog qhov hnyav, koj yuav tsum xav txog qhov xwm txheej ntawm daim ntawv thov, qhov kev xav tau ntawm cov khoom siv, thiab cov xwm txheej tshwj xeeb ntawm kev ntsuas ib puag ncig. Nov yog qee cov lus pom zoo rau kev siv ntau:
1. Ultra-High Precision Laboratories:
Yog tias koj daim ntawv thov cuam tshuam nrog kev sib kis loj heev, xav txog kev siv E1 lossis E2 qhov hnyav. Cov no yog qhov tseem ceeb rau lub teb chaws tus qauv zoo calibrations thiab high-precision scientific instruments.
2. High-Precision Electronic Balances thiab Analytical Balances:
Qib F1 lossis F2 qhov hnyav yuav txaus rau kev ntsuas cov khoom siv, tshwj xeeb tshaj yog nyob rau hauv cov teb xws li chemistry thiab kws tshuaj uas yuav tsum tau muaj qhov siab.
3. Kev ntsuas kev lag luam thiab cov khoom lag luam:
Rau cov nplais kev lag luam, tsheb thauj khoom hnyav, thiab cov nplais hluav taws xob loj, M1, M2, lossis M3 qhov hnyav dua. Cov qhov hnyav no yog tsim los rau kev ntsuas kev lag luam niaj hnub, nrog me ntsis loj dua qhov yuam kev.
III.Ntsuas thiab Calibration
Txawm tias muaj qhov hnyav hnyav, kev siv mus ntev, kev hloov pauv ib puag ncig, thiab kev tuav tsis raug tuaj yeem ua rau muaj qhov tsis sib xws ntawm qhov raug. Yog li ntawd, calibration tsis tu ncua thiab tu yog qhov tseem ceeb:
1. Kev tu txhua hnub:
Tsis txhob sib cuag ncaj qha nrog qhov hnyav kom tiv thaiv cov roj thiab cov kab mob los ntawm kev cuam tshuam rau lawv qhov chaw. Nws raug nquahu kom siv cov ntaub tshwj xeeb los maj mam so qhov hnyav thiab khaws cia rau hauv qhov chaw qhuav, tsis muaj plua plav kom tsis txhob ya raws thiab plua plav los ntawm kev hloov lawv qhov tseeb.
2. Regular Calibration:
Kev calibration tsis tu ncua yog qhov tseem ceeb rau kev tswj xyuas qhov tseeb ntawm qhov hnyav. High-precision luj feem ntau yuav tsum tau calibrated txhua xyoo, thaum M series luj siv rau kev lag luam ntsuas yuav tsum tau calibrated txhua xyoo los yog ib nrab xyoo kom ntseeg tau tias lawv ua tau raws li cov qauv raug.
3. Certified Calibration Institutions:
Nws yog ib qho tseem ceeb uas yuav tau xaiv qhov kev pabcuam calibration uas muaj ntawv pov thawj nrog ISO / IEC 17025 kev lees paub, uas ua kom ntseeg tau tias cov txiaj ntsig kev ntsuas ntsuas tau raug soj ntsuam thoob ntiaj teb. Tsis tas li ntawd, tsim cov ntaub ntawv calibration tuaj yeem pab taug qab cov kev hloov pauv hauv qhov hnyav thiab txo qhov kev pheej hmoo ntawm kev ntsuas.
Xaus
Qhov hnyav yog cov cuab yeej tseem ceeb hauv kev ntsuas thiab ntsuas, thiab lawv cov qhab nia raug, cov ntaub ntawv, thiab cov ntawv thov ntau yam qhia lawv cov txiaj ntsig hauv ntau qhov chaw. Los ntawm kev xaiv qhov hnyav raws li koj qhov kev xav tau thiab ua raws li kev saib xyuas thiab kev ntsuas kom zoo, koj tuaj yeem ua kom qhov tseeb thiab kev ntseeg siab ntawm cov txheej txheem ntsuas. Los ntawm E1, E2 rau M series hnyav, txhua qib muaj nws qhov tshwj xeeb daim ntawv thov scenario. Thaum xaiv qhov hnyav, koj yuav tsum ua tib zoo xav txog qhov yuav tsum tau ua, hom khoom siv, thiab ib puag ncig los lav qhov kev ntsuas ruaj khov rau lub sijhawm ntev.
Post lub sij hawm: Nov-26-2025