Dab Tsi Yog Qhov Daws Teeb Meem ntawm Tus lej Scanner

Kev daws teeb meem ntawm lub barcode scanner yog sib npaug ntawm kev daws teeb meem ntawm nws cov kho qhov muag ntxiv rau nws cov kev daws teeb meem tau los ntawm kev ua thiab kev txheeb xyuas los ntawm cov khoom siv thiab software. Kev kho qhov muag yog tus naj npawb tiag tiag ntawm lub teeb pom kev zoo uas tuaj yeem ntes tau los ntawm cov khoom siv kho qhov muag ntawm qhov barcode scanner rau ib nti. Nws yog hais txog kev daws teeb meem ntawm lub cev ntawm lub bar scanner' s CCD (lossis lwm yam khoom siv optoelectronic) thiab kev daws teeb meem tseeb ntawm cov lej ntsuas barcode. Tus nqi, nws tus nqi yog tus nqi tau los ntawm kev sib faib ntau tus naj npawb ntawm pixels uas tuaj yeem ntes tau los ntawm photoelectric keeb los ntawm qhov siab tshaj plaws scannable qhov loj ntawm barcode scanner qib. Optical scanning thiab tso zis tawm yog qhov ib-rau-ib. Dab tsi yog scanned yog dab tsi yog tsim tawm. Tom qab ua tiav los ntawm lub koos pij tawj software thiab kho vajtse, cov duab tsim tawm yuav dhau los ua qhov tseeb thiab qhov kev daws teeb meem yuav siab dua. Feem ntau bar code scanners tam sim no ntawm kev ua lag luam muaj software thiab kho vajtse nthuav txav zog rau kev daws teeb meem. Qee qhov bar code scanner tshaj tawm sau 9600 × 9600 DPI. Qhov no tsuas yog qhov kev daws teeb meem siab tshaj plaws tau txais los ntawm kev txhais lus software, tsis yog qhov tseeb kho qhov muag tau ntawm lub vijtsam bar code. Yog li rau qhov barcode scanner, nws cov kev daws teeb meem tau kho qhov muag (lossis qhov teeb meem kho qhov muag) thiab qhov teeb meem siab tshaj plaws. Ntawm chav kawm, yam peb mob siab txog yog kev daws teeb meem kho qhov muag. Nov yog kev ua haujlwm nyuaj. Peb hais tias kev daws teeb meem ntawm lub barcode scanner yog li 4800 DPI (qhov no 4800 DPI yog qhov tawm ntawm kev daws teeb meem kho qhov muag thiab kev ua haujlwm sib txawv ntawm cov software), uas txhais tau tias thaum cov duab siv nrog bar scanner, nws tuaj yeem sau rau ntawm 1-nti-ntiv tes scanning hom ntawv. 4800 × 4800 pixels. Txheeb thaj tsam ntawm 1 nti square, daim duab loj tom qab luam theej duab nrog 4800DPI kev daws teeb meem yog 4800Pixel × 4800Pixel.