Txhawm rau tiv thaiv cov teeb meem calibration ntxiv los ntawm qhov kub thiab txias, qhib lub cuab yeej thiab sov nws li ib nrab teev. Qhov no yuav tso cai rau lub internal analogue circuitry kom ruaj khov thermally.
Tsim cov txheej txheem siv calibrator uas muaj cov chav kawm raug tsawg kawg yog ± 0.01%. Raws li ib tug traceability lub hauv paus rau kev sib piv qhov tseeb, nws qhov raug chav kawm yuav tsum muaj tsawg kawg yog ob chav kawm siab tshaj lub teeb liab generator tab tom calibration.
Xyuas kom tseeb tias tag nrho cov cables kuaj tau ruaj ntseg. Xyuas kom tseeb tias lub gadget yog nyob tsis tu ncua. Electromagnetic cuam tshuam yuav tsum raug tshem tawm los ntawm kev tswj qhov kub thiab txias ntawm 23 ± 5℃thiab cov av noo tsis tshaj 80%.
Kauj ruam 1: Basic Self-Test and Zero-Point Calibration: Kom paub meej tias lub cuab yeej ua haujlwm zoo li qub thiab tsis muaj teeb meem kho vajtse, mus rau lub teeb liab lub tshuab hluav taws xob qhov chaw teeb tsa cov ntawv qhia zaub mov thiab xaiv "Self-Test" muaj nuj nqi.
Cia lub teeb liab generator tso zis chaw nres nkoj khoob thiab tshem tawm tag nrho cov khoom siv sab nraud. Xaiv "Xero-Point Calibration" los ntawm cov ntawv qhia zaub mov system.
Tos lub cuab yeej cia li muab xoom xoom- taw qhia kev sib txawv ntawm kev kho thiab tau txais qhov tseeb xoom- taw tes tawm tus nqi raws li lub xeev unloaded tam sim no. Xyuas kom tseeb tias qhov tso zis sib txawv ntawm xoom yog tsawg dua 0.01% ntawm qhov ntau.
Kauj Ruam 2: Tag Nrho -Range Accuracy Calibration thiab Basic Self-Test thiab Zero-Point Calibration
Siv lub ntsuas ntsuas ntsuas, ntsuas qhov ntsuas qhov ntsuas qhov tseeb - los ntawm - taw tes tom qab teeb tsa lub teeb liab lub tshuab hluav taws xob tso tawm raws li 10%, 25%, 50%, 75%, thiab 100% ntawm qhov ntau.
Txhawm rau kom ntseeg tau tias tag nrho - qhov sib txawv ntawm qhov tso zis ntau dhau yog qis dua qhov tseeb ntawm cov khoom siv, tshem tawm cov kev hloov pauv tsis zoo nyob thoob plaws ntau qhov sib txawv los ntawm kev kho qhov nce kho coefficient ntawm cov channel tsim nyog rau txhua qhov ntau.
Tshwj xeeb Thermal Signal Calibration: Txhawm rau kho qhov kub thiab txias analogue teeb liab yuam kev thiab txaus siab rau lub kub khiav kub tswj channel cov txheej txheem calibration, calibrate lub thermocouple millivolt tso zis thiab RTD kuj output point - los ntawm -point.
Kev ntsuas ntsuas zaus suav nrog kev teeb tsa cov zis zaus ntawm lub teeb liab lub teeb liab mus rau 10MHz, siv lub siab -precision zaus ntsuas ntsuas qhov tseeb tso zis zaus, kho qhov zaus kho coefficient kom txog rau thaum qhov sib txawv yog xoom, thiab tsom rau kev ntsuas cov zaus siv ntau zaus thoob plaws.
Waveform Distortion Calibration: Tsim 1 kHz sine yoj, siv lub oscilloscope hauv THD hom los ntsuas lub waveform distortion, hloov cov waveform optimization tsis, thiab xyuas kom tseeb tias THD tsis dhau qhov kev txwv ntawm cov cuab yeej.
Kauj ruam 3: Archiving thiab Post-Calibration Verification
Khiav lub kaw lus tsis tu ncua rau ib teev tom qab calibration, sau cov ntaub ntawv tso tawm los ntawm cov ntsiab lus pov thawj tseem ceeb txhua kaum feeb kom ntseeg tau tias tsis muaj kev cuam tshuam tas mus li thiab qhov drift tsawg dua 0.03% ntawm qhov ntau.
Txhawm rau kom ntseeg tau tias tsis muaj lub teeb liab dhia lossis kev sib txuas lus cuam tshuam thiab qhov sib txawv ntawm qhov ntsuas kub tswj qhov system tso saib tus nqi thiab lub teeb liab lub tshuab hluav taws xob tso tawm tus nqi tsawg dua lossis sib npaug li ± 1 degree, txuas mus rau qhov kub khiav kub tswj qhov system thiab khiav tag nrho -channel linkage test.
Cov cuab yeej tau npaj rau kev siv ua haujlwm ib zaug tag nrho cov khoom pov thawj ua tau raws li qhov yuav tsum tau ua, qhov ntsuas qhov ntsuas tau raug khaws cia rau qhov tsis yog - lub cim xeeb tsis zoo ntawm lub cuab yeej, thiab cov ntaub ntawv ntsuas ntsuas raug tsim los khaws cia.
Txhawm rau kom ntseeg tau tias qhov kub khiav lub teeb liab lub tshuab hluav taws xob qhov ntsuas qhov tseeb ua tiav cov qauv kev tsim khoom, cov txheej txheem yooj yim thiab ncaj qha calibration tuaj yeem ua tiav ntawm nws tus kheej los ntawm cov kws tshaj lij kev tswj hwm kev tswj xyuas tsis tu ncua yam tsis tas yuav tsum muaj cov iav ntxiv.
