1. Lub sij hawm calibration ntawm lubelectromagnetic flowmeternrog qhov tseeb ntawm {{0}}.2 feem pua thiab zoo dua li 0.2 feem pua yog 1 xyoo. Yog tias qhov tseeb qis dua 0.2 feem pua, lub sijhawm calibration yog 2 xyoos.
2. Electromagnetic instrument yog ib hom magnetic teb uas yog perpendicular mus rau lub flow kev taw qhia nyob rau hauv ib tug kaw yeeb nkab, thiab tus nqi txaus yog xam los ntawm kev ntsuas lub induced electromotive quab yuam generated los ntawm lub zog ntawm cov conductive kua nyob rau hauv lub magnetic teb.
3. Lub hauv paus ntsiab lus ua haujlwm ntawm flowmeter yog Faraday txoj cai ntawm electromagnetic induction. Tus nqi ntws yog cuam tshuam nrog lub zog electromotive tsim los ntawm cov kua ntws, thiab lub zog electromotive muaj feem xyuam rau lub zog ntawm cov hlau nplaum, qhov ntws ntawm cov kua thiab qhov chaw ntws. Lub zog ntawm magnetic teb tsis tuaj yeem ntsuas thiab tsis tas li. Cov qauv ntawm txhua lub electromagnetic flowmeter tsis zoo ib yam, yog li cov coefficient ntawm qhovflowmetertsuas tuaj yeem tau txais los ntawm calibration.
4. Lub calibration ntawm lub 'meter' yog tsim nyog. Tom qab siv sijhawm ntev, cov khoom siv hluav taws xob yuav txav mus los nrog qhov cuam tshuam ntawm qhov kub thiab txias, av noo, thiab lwm yam, thiab qhov xav tau sib nqus teb kuj tseem yuav hloov. precision.
5. Lub sij hawm ntawm calibration feem ntau yog nyob ntawm kev ua haujlwm, xws li: kev ntsuas siab, ntau impurities thiab av hauv nruab nrab, electrode fouling, cuam tshuam rau kev ntsuas, thiab ntsuas tsis raug tom qab ntxuav, kom calibration tuaj yeem ua tiav. Yog tias cov kev ua haujlwm zoo thiab kev siv lub sijhawm ntev yog qhov qub, tsis tas yuav kuaj xyuas.