Makina osindikizira otentha akhala akugwiritsidwa ntchito kwa zaka zambiri, koma sanagwiritsidwe ntchito posindikiza barcode yapamwamba mpaka kumayambiriro kwa zaka za m'ma 1980.Mfundo yaosindikiza otenthandi kuvala zinthu zowala (kawirikawiri pepala) ndi filimu yowonekera, ndikuwotcha filimuyo kwa nthawi kuti ikhale yakuda (nthawi zambiri yakuda, komanso buluu).Chithunzicho chimapangidwa ndi kutentha, komwe kumapanga mankhwala mufilimuyi.Izi mankhwala anachita ikuchitika pa kutentha.Kutentha kwambiri kumapangitsa kuti mankhwalawa azichita.Kutentha kukakhala kochepa kuposa 60 ° C, zimatenga nthawi yochuluka, ngakhale zaka zingapo, kuti filimuyo ikhale mdima;pamene kutentha ndi 200 ° C, izi zimatsirizidwa mkati mwa ma microseconds ochepa.Thechosindikizira chotenthaamatenthetsa pepala lotentha m'malo ena, potero amapanga zithunzi zofananira.Kuwotcha kumaperekedwa ndi chowotcha chaching'ono chamagetsi pamutu wosindikizira womwe umakhudzana ndi zinthu zowonongeka.Zowotchera zimayendetsedwa momveka bwino ndi chosindikizira ngati madontho akulu akulu kapena mizere.Poyendetsedwa, chithunzi chofanana ndi chotenthetsera chimapangidwa papepala lotentha.
Lingaliro lomwelo lomwe limawongolera chotenthetsera chimawongoleranso chakudya chamapepala, kulola kuti zithunzi zisindikizidwe pa lebulo lonse kapena pepala.Chosindikizira chotentha chodziwika bwino chimagwiritsa ntchito mutu wosindikiza wokhazikika wokhala ndi matrix otentha a madontho.Mutu wosindikiza womwe ukuwonetsedwa pachithunzichi uli ndi madontho 320 masikweya, aliwonse omwe ndi 0.25mm × 0.25mm.Pogwiritsa ntchito madontho awa, chosindikizira amatha kusindikiza pamalo aliwonse a pepala lotentha.Ukadaulo uwu wagwiritsidwa ntchito pa osindikiza mapepala ndizilembo zosindikiza.Nthawi zambiri, liwiro la kudyetsa pepala la chosindikizira chotenthetsera limagwiritsidwa ntchito ngati cholozera, ndiko kuti, liwiro ndi 13mm/s.Komabe, osindikiza ena amatha kusindikiza kuwirikiza kawiri ngati chizindikirocho chikongoletsedwa.Njira yosindikizira yotenthayi ndiyosavuta, kotero imatha kupangidwa kukhala chosindikizira chosindikizira cha batri chonyamula.Chifukwa cha mawonekedwe osinthika, mawonekedwe apamwamba azithunzi, kuthamanga kwambiri komanso mtengo wotsika wosindikizidwa ndi osindikiza otentha, zilembo za barcode zomwe zimasindikizidwa ndizosavuta kusungidwa pamalo opitilira 60 ° C, kapena kuwunikira kuwala kwa ultraviolet (monga mwachindunji. sunlight) kwa nthawi yayitali.kusunga nthawi.Chifukwa chake, zilembo za barcode zotentha nthawi zambiri zimangogwiritsidwa ntchito m'nyumba.
Nthawi yotumiza: Feb-25-2022