Calibration yuav tsum thiab cov txheej txheem rau txheej thickness gauges
Standard thickness gauges yog cov qauv thickness siv rau calibrating txheej thickness gauges los txiav txim cov zaub nqi yuam kev thiab tso saib tus nqi variability los yog calibrate txheej thickness gauges. Txheej thickness gauge calibration tej yam kev mob, kuaj chav tsev kub: 20 degree ± 2 degree, thickness hlais thiab thaiv kub equilibrium lub sij hawm: 2h; kuaj chav tsev av noo: Tsawg dua los yog sib npaug rau 65% ntsug optical meter sov so lub sij hawm: tsis tsawg tshaj li 15min Instrument fais fab mov: 220 (1 ± 10%) V, 50Hz.
1 Kev tshwm sim
Qhov yuav tsum tau muaj: lub thickness ntawm ob qhov chaw ntawm daim ntawv yuav tsum tsis muaj khawb, pob thiab lwm yam tsis xws luag Calibration method: pom kev pom.
2 Cov cheeb tsam zoo
Qhov yuav tsum tau muaj: qhov tsis sib xws ntawm qhov chaw yuav tsum tau cim nrog lub voj voog ntawm lub vojvoog ntau dua 5 hli, thiab thaj tsam ntawm daim ntawv tuab ntawm cov npoo yuav tsum tsis pub tsawg tshaj 20mm x 20mm. calibration method: steel kav ntsuas.
3 tus lej ntawm tus nqi nruab nrab.
calibration txoj kev: nrog peb sib npaug blocks thiab ntsug optical meter, nrog ib tug ncaj txoj kev los yog sib piv txoj kev los ntsuas lub thickness ntawm tus qauv thickness hlais, ua ntej ntsuas daim ntawv thov ntawm aviation roj av los ntxuav lub block, thickness hlais, optical meter anvil, sojntsuam, calibration ntawm kev siv lub hau vojvoog ntawm curvature tsis tsawg tshaj li 20 hli, qhov ntsuas ntawm tus pas nrig yuav tsum tau nqes los ntawm pitchforks kom lub hau maj mam sib cuag nrog tus txheej txheem thickness hlais los tiv thaiv tus qauv thickness hlais ntawm qhov cuam tshuam. calibration taw tes rau thaj tsam zoo nyob rau hauv lub Uniformly faib 5 ntsiab lus (nrog rau lub hauv paus), tsis muaj ib tug zoo cheeb tsam kos npe rau ntawm tus qauv thickness piece ntawm zoo cheeb tsam nyob rau hauv qhov chaw raws li qhov chaw ntawm lub voj voog vojvoog tsis tsawg tshaj li 10 hli nyob rau hauv lub voj voog.
4 uniformity yuam kev
Yuav tsum tau: uniformity yuam kev ntawm tus qauv thickness hlais. calibration txoj kev, coj lub thickness ntawm txhua lub ntsiab lus nyeem thiab thickness ntawm qhov nruab nrab tus nqi ntawm zui loj sib txawv rau tus qauv thickness hlais uniformity yuam kev, tus nqi yuav tsum tsis txhob tshaj qhov yuav tsum tau ntawm Table 2.
