Nrog rau txoj kev loj hlob sai ntawm vuam automation tshuab, weld seam nrhiav qhov system tau dhau los ua ib qho tseem ceeb hauv kev lag luam vuam. Kev siv weld seam nrhiav qhov system kom ua tiav automation ntawm cov txheej txheem vuam tau dhau los ua yam tsis muaj nyob rau yav tom ntej. Yog li ntawd, ntau yam kev qhuab qhia ntawm kev siv tshuab tau siv rau vuam seam nrhiav qhov system, ntawm cov koob yees duab CCD yog ib feem tseem ceeb.
Lub luag haujlwm tseem ceeb ntawm CCD koob yees duab hauv weld seam nrhiav sensors yog nyeem cov duab. Thaum tua ib qho xwm txheej nrog lub koob yees duab CCD, lub teeb pom kev los ntawm qhov chaw raug xa mus rau CCD los ntawm lub lens ntawm lub koob yees duab CCD. Tom qab CCD raug, lub photodiode zoo siab los ntawm lub teeb thiab tso tawm tsub nqi, uas ua rau cov hluav taws xob teeb liab ntawm lub photosensitive caij.
Lub CCD tswj nti siv cov teeb liab tswj Circuit Court nyob rau hauv lub photosensitive caij los tswj cov tam sim no generated los ntawm photodiode, uas yog tso tawm los ntawm tam sim no kis tau tus mob Circuit Court. Lub koob yees duab CCD yuav sau cov teeb liab hluav taws xob uas tsim los ntawm ib qho duab thiab tso tawm nws ib yam nkaus rau lub amplifier. Lub teeb liab amplified thiab lim hluav taws xob xa mus rau A / D, uas hloov cov teeb liab hluav taws xob (tam sim no lub teeb liab analog) rau hauv cov teeb liab digital. Qhov loj ntawm tus nqi yog ncaj qha proportional rau lub zog ntawm lub teeb liab hluav taws xob, piv txwv li qhov voltage. Cov txiaj ntsig no yog cov ntaub ntawv ntawm daim duab.
Txawm li cas los xij, kev cia siab ib leeg ntawm cov duab cov ntaub ntawv tau txais hauv cov kauj ruam dhau los tsis tuaj yeem tsim cov duab ncaj qha, thiab nws yuav tsum tau tso tawm rau digital signal processor (DSP). Nyob rau hauv DSP, cov duab cov ntaub ntawv no raug rau tom qab ua xws li kev kho xim thiab dawb tshuav nyiaj li cas (nyob ntawm seb tus neeg siv qhov chaw hauv CCD lub koob yees duab), encoded rau hauv cov duab hom, kev daws teeb meem, thiab lwm yam ntaub ntawv tawm tswv yim txhawb los ntawm lub koob yees duab, thiab ces khaws cia li cov ntaub ntawv duab. Thaum kawg, cov duab cov ntaub ntawv raug sau rau hauv lub cim xeeb ntawm CCD lub koob yees duab (sab hauv lossis sab nraud nco).
Tom qab khaws cov duab, cov duab ua tiav yog ua kom tau qhov sib txawv ntawm qhov vuam seam thiab rab phom vuam. Tom qab ntawd, lub teeb liab tswj tau raug xa mus rau PLC los ntawm lub khoos phis tawj sab saud. Thaum lub sij hawm debugging txheej txheem, tag nrho cov system tuaj yeem ua tiav qhov tseeb weld seam nrhiav.