Cov ntaub ntawv thermocouple, thaum soj ntsuam cov tswv yim, yog tus tsav tsheb muaj zog ntawm kev txhim kho txuas ntxiv hauv kev txhaj tshuaj molding. Cov ntaub ntawv tsis yog rau kev tswj hwm nkaus xwb- nws yog lub qhov rais rau hauv cov txheej txheem kev noj qab haus huv. Thawj kauj ruam yog sau thiab khaws cov ntaub ntawv kom zoo. Siv tus maub los cov ntaub ntawv logging feature los yog ib tug cais cov ntaub ntawv yuav tau sau qhov kub ntawm txhua cheeb tsam ntawm ib ntus (xws li, txhua ob). Khaws cov ntaub ntawv hauv SQL database lossis tus kws sau keeb kwm. Cov kauj ruam thib ob yog tsim kom muaj lub hauv paus. Khiav cov txheej txheem raws li ib txwm muaj rau ib lub lim tiam thiab xam qhov nruab nrab thiab tus qauv sib txawv ntawm txhua cheeb tsam qhov kub thiab txias. Qhov no dhau los ua qhov kos npe "ib txwm". Qhov thib peb kauj ruam yog siv cov kab kos tswj. Teeb cov ntaub ntawv kub ntawm X-bar thiab R kab kos. Yog tias ib cheeb tsam qhov kub thiab txias tawm ntawm qhov kev tswj hwm sab saud lossis qis qis, nws qhia tau tias muaj kev hloov pauv tshwj xeeb. Tshawb nrhiav thiab kho qhov laj thawj. Qhov no yog ib tug classic nruam txhim kho cuab yeej. Cov kauj ruam thib plaub yog los ua kev txheeb xyuas kev txheeb xyuas. Siv regression tsom xam los txiav txim seb puas muaj kev sib raug zoo ntawm cheeb tsam kub thiab qhov zoo (xws li, qhov hnyav, qhov ntev). Yog tias muaj kev sib raug zoo, koj tuaj yeem kwv yees qhov zoo ntawm cov ntaub ntawv kub, ua kom muaj kev tswj xyuas zoo. Piv txwv li, yog tias qhov kub ntawm thaj tsam 5 nce los ntawm 1 degree, qhov hnyav nce los ntawm 0.2 grams. Teem lub ceeb toom txwv ntawm 0.5℃nce mus ntes nws ua ntej nws cuam tshuam qhov zoo. Qhov thib tsib kauj ruam yog los saib xyuas "cov lus teb cua sov" ntawm txhua cheeb tsam. Thaum lub sij hawm pib pwm, sau lub sij hawm txhua cheeb tsam yuav siv sij hawm mus txog qhov teeb meem. Lub sijhawm ntev dua tuaj yeem qhia tau tias lub tshuab cua sov tsis zoo lossis lub thermocouple nrog kev sib cuag tsis zoo. Los ntawm kev taug qab lub sijhawm pib no, koj tuaj yeem teem sijhawm saib xyuas ua ntej ua tsis tiav. Kauj ruam thib rau yog sib piv cov ntaub ntawv thermocouple hla cov pwm zoo sib xws. Yog tias ib qho pwm tsis tu ncua muaj qhov ntsuas kub ntau dua li lwm qhov, nws yuav qhia txog qhov teeb meem tsim. Siv cov ntaub ntawv los ua kom zoo rau kev tsim cov pwm yav tom ntej. Cov kauj ruam thib xya yog siv cov ntaub ntawv los txheeb xyuas cov txheej txheem hloov pauv. Yog tias koj hloov cov khoom lossis hloov pwm, piv rau ua ntej -hloov thiab xa tawm- hloov cov ntaub ntawv thermocouple kom ntseeg tau tias cov txheej txheem tseem ruaj khov. Qhov thib yim kauj ruam yog los pub cov ntaub ntawv rov qab rau hauv cov khoom specification. Yog tias ib hom thermocouple tshwj xeeb qhia tau hais tias tus nqi siab dua, tsis suav nrog kev yuav khoom yav tom ntej. Los ntawm kev nquag siv cov ntaub ntawv thermocouple rau kev tsom xam thiab kev txhim kho, cov nroj tsuag txav los ntawm ib qho reactive "kho nws thaum nws tawg" kab lis kev cai mus rau ib tug proactive "optimize nws tsis tu ncua" kab lis kev cai, txo cov seem, txhim kho productivity, thiab nce kev sib tw.
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