Lub ntsiab yam ntxwv ntawm lub scanner thiab lawv hom

Yuav ua li cas yog tias koj yuav tsum tau mus hloov cov duab ntawm e-mail sau rau ntawm daim ntawv? Tej zaum sawv daws paub ib tug ntaus ntawv xws li ib tug scanner. Nws tsis cia li pab cov neeg kom qub duab, uas ua rau nws txawm tias peb pog thiab yawg, txhais ua hauv hom ib co tseem ceeb cov ntaub ntawv tsis tau nrog lawv qhov chaws nyob rau hauv ib lub PC.

Nyob rau hauv dav dav, lub scanner - ib tug zoo tshaj plaws, thiab tam sim no nyob rau hauv ntau qhov chaw ua hauj tsuas irreplaceable. Yuav kom zoo zoo txiav txim seb qhov kev txiav txim uas qauv uas koj xav tau, koj yuav tsum xav txog lub ntsiab yam ntxwv ntawm lub scanner.

Yuav ua li cas yog nws?

Zoo tsis txhob xa mus rau lub scientific lus thiab los mus piav qhia nyob rau hauv cov lus yooj yim, dab tsi zoo ntawm ntaus ntawv. Lub scanner lub luag hauj lwm rau kev ua tau zoo rau kev nyeem ntawv, uas yog raws kev coj kom ib tug ca cov ntaubntawv povthawj siv nruab nrab (e.g., daim ntawv). Nyob rau hauv lub kawg, tus neeg siv tau txais ib cov ntaub ntawv mus rau cov hloov nws los ntawm ib tug deb los yog cia nyob rau hauv hluav taws xob hom. PP tau nyob rau hauv ib cov duab daim duab ntawm tus kwv vim tus sab nraud ADC. Tom qab hais tias, cov duab no yog xa mus rau lub computer ntawm lub I / O system.

Tus thawj cov me nyuam

Ob peb cov neeg paub, tab sis qhov yooj yim cov yam ntxwv ntawm lub scanner twb paub mus soj ntsuam txij li thaum 1857. Ces tus lwm uas niaj hnub pab kiag li lawm ua Abbot ntawm Florence Dzhovanni Kazelli. Nws ntaus ntawv ua hauj lwm heev txheej thaum ub txheeb ze rau tam sim no technology. Ces, nyob rau hauv thiaj li yuav hloov ntawm daim duab mus rau hauv lub deb, nws yog tsim nyog los muab tso rau nws nyob rau hauv lub nruas siv conductive number case, thiab ces xav txog daim duab nrog ib rab koob. Xws li ib tug ntaus ntawv hu ua pantelegraf.

Tsis pub dhau ib tug ib nrab-xyoo pua German physicist ua lawv xyaum ua tej yam nyob rau hauv uas tau patented los telefax. Arthur Korn tsim ib txoj kev rau photoelectric PP. Lub hauv paus ntsiab lus ntawm nws yog tsis yooj yim: ib daim duab tau txuas rau tag nrho cov tib lub nruas, tab sis pob tshab. Lub teeb twb tsau kom cov ndlwg ntawm lub teeb yuav txav mus. Nws dhau los ntawm lub thawj daim duab thiab xa mus rau lub selenium photodetector, thiab ces penetrated los ntawm ib tug plaub thiab ib tug lens.

Lub fast-paced semiconductor, lub ntxov paub photodetector. Txawm tias muaj tseeb hais tias tom qab yees cov ntsiav tshuaj txoj kev, lub ntsiab cai tseem zoo unchanged.

yam ntxwv ntawm

Ua ntej peb yuav nrog lub hom, koj yuav tsum them sai sai mus rau lub specifications ntawm lub scanner. Lawv muaj ib tug spectrum, thiab yog tsis muaj standard cais. Txhua parameter nyob ntawm lub hom phiaj ntawm lub ntaus ntawv. Cuaj kaum, muaj yooj yim yam ntxwv, uas yuav tsum tau xaiv thiab scanner. Ntawm lawv, ceev, xim tob, daws teeb meem ntawm lub resulting dluab, thiab lwm yam

Kev zoo nkauj yog nyob rau hauv lub ntsiab lus

Scanner Specifications yog ntau yam, tab sis lub rooj yog ib tug ntawm lub ntsiab tsis. Nyob rau hauv tej yam yooj yim cov nqe lus: cov cuab yeej yog lub luag hauj lwm rau qhov luaj li cas ntawm qhov tsawg tshaj plaws cov ntsiab lus ntawm cov duab uas yuav tau kis thaum lub sij hawm lub scan. Daws teeb meem yog teev nyob rau hauv dpi. Qhov no tus nqi qhia tus xov tooj ntawm pom pixels ib nti dluab. Feem ntau, cov chaw tsim tshuaj paus qhia txog cov kev kawm ntawv ntawm tag nrho cov peb yuav kho tau:

• txhua yam;
• kho qhov muag;
• interpolation.

Ua ntej koj yuav los mus txiav txim qhov chaw ntawm lub carriage nrog ib tug CCD-line thaum lub sij hawm lub zog ntawm tus duab. Qhov tseeb hais tias tus neeg kho tshuab daws teeb meem yog ob zaug cov kho qhov muag chaw tsim tshuaj paus siv tiv thaiv tsis tau tso cai siv. Lub TX nws cov ntsiab lus tawm hais tias cov kho qhov muag tus nqi yog 300h600 dpi. Tab sis yog hais tias tus ntaus ntawv yog tsis muaj interpolation, nws yuav khiav nrog ib tug tsawg kawg nkaus ntawm 300 dpi.

Interpolated daws teeb meem yog lub luag hauj lwm rau qhov luaj li cas ntawm cov uas muaj peev xwm muab tau los ntawm scaling cov duab mus txog 16 lub sij hawm. Nyob rau hauv hauv paus ntsiab lus, qhov no yog qhov tsawg kawg yog ib qho tseem ceeb parameter, thiab nws yuav luag tsis muaj tej yam ntxiv cov ntaub ntawv. Tab sis kuj nws tsim yuav siv tau tiv thaiv cov buyer, taw tes rau ib lub thawv ntawm 4800 dpi. Qhov no xam tau impress ib tug ruam tug neeg. Tab sis tus neeg twg uas tsis paub tus yam ntxwv ntawm lub scanner, tab sis nws twb yuav mus yuav ib tug ntaus ntawv yuav tsum coj mus rau hauv tus account uas lub sij kho qhov muag tus nqi tej zaum yuav tsuas 300 dpi.

Lub ntsiab sib cav - nws yog kho qhov muag daws teeb meem. Txhais kom meej nws, koj yuav tau xam lub concentration ntawm cov ntsiab nyob rau hauv lub teeb-sensitive kab. Ua li no, tus xov tooj ntawm qhov chaw rau nws muab faib los ntawm nws cov dav. Qhov kev xaiv no, raws li hais ua ntej lawm, yog lub tseem ceeb tshaj plaws nyob rau hauv kev txiav txim lub meej cov duab. Yog li ntawd, nws yog tsis tshua muaj pom nyob rau hauv lub thawv nrog lub ntaus ntawv, raws li ob qho tib si chaw tsim tshuaj paus thiab muag khoom ntawm sim mus nkaum qhov real nuj nqis.

"Qhuav" nuj nqis

Raws li hais ua ntej lawm, nws tsis yog ib qho yooj yim mus xaiv ib tug ntaus ntawv. Nta scanners tej yam ib tug inexperienced buyer, yog li ua ntej yuav nriav ib tug zoo tswv yim to rau hauv txhua qhov chaw. Tus tom ntej me ntsis tom qab lub rooj yog, qhov tob los yog ntxoov ntxoo. Qhov no characterization qhia tus xov tooj ntawm cov khoom yuav tsum tau mus cia xim cov ntaub ntawv rau txhua pixel. Tsawg xav tau ntawm cov xim dub thiab dawb scanners nyob rau hauv lub cim xeeb. Lawv muaj ib tug me ntsis. Monochrome me ntsis ntxiv - 8, thiab cov xim - 24 khoom. Scanners kim kim ya tej zaum yuav 36-ntsis.

Xim qhov tob yog sab nraud thiab sab hauv. Cov ntsuas teev tseg los ntawm lub chaw tsim tshuaj paus. Internal tsiag ntawv me ntsis analog-rau-digital transformer, pab txiav txim seb tus naj npawb ntawm cov xim uas muaj peev xwm "pom" tus scanner. Sab nraud tob - yog tus naj npawb ntawm cov xim uas tus ntaus ntawv yog tau hloov mus rau ib tug PC.

Yog hais tias koj xav tau ib tug ntaus ntawv mus rau lub chaw ua hauj lwm los yog lub tsev, tsim thiab cov pa me ntsis - 24 ntsis. Yog hais tias lub scanner yog yuav tsum tau nyob rau hauv lub printing kev lag luam thiab zoo sib xws cov koom haum, nws yog zoo dua mus saib nyob rau lub tsev ntawm qhov 48 khoom.

kho qhov muag ceev

Nyob rau qhov no scanner yam ntxwv tsis xaus muaj. Muaj yog ib tug tshaj plaws kho qhov muag ceev. Yog hais tias koj tsis txhob mus rau hauv cov lus thiab kev piav qhia, yog lub peev xwm ntawm lub ntaus ntawv mus rau luam theej duab tsaus nti dluab: rhiab heev ntawm lub twj paj nruag, qhov zoo digitize qhov tsaus ntuj nti qhov chaw ntawm lub duab.

Nrog rau qhov kev xaiv no muaj ib tug kho qhov muag ceev ntau yam. Nws yuav xam nrog rau cov zauv logarithm. Nws yog tus piv ntawm tus nqi ntawm cov teeb meem lub teeb nyob rau tsab ntawv mus rau tus nqi reflected. Qhov nruab nrab ntau yam rau ib tug 24-ntsis lo lus ntev yuav tsum 1,8-2,3 D.

ceev

Qhov no qhov chaw yog feem ntau kuj tsis nco qab kom meej yog tsis fib. Cuaj kaum, tus PP tus nqi nyob rau hauv ob peb yam tseem ceeb. Thawj feem yog cov kev daws teeb meem thiab qhov luaj li cas ntawm cov thawj. Tus nqi tej zaum yuav qhia tus xov tooj ntawm cov nplooj ntawv ib feeb, los yog tsuas yog lub sij hawm thaum lub sij hawm uas ib daim ntawv tiav. Muaj kuj yog ib qho kev ntsuas ntawm PP kab ib ob.

Qhov luaj li cas ntawm cov luam cheeb tsam tej zaum kuj yuav varied. Feem ntau cov tshuaj - ib daim ntawv ntawm A4. Tej qauv no yog pom nyob rau hauv chaw ua hauj lwm thiab tsev. Nyob rau enterprise yuav siv lub A3. Rau tes tuav scanners band loj yog 11 cm.

interface

Tsis yeej ib txwm lub scanner yam ntxwv yog ntawm kev tseem ceeb. Nyob rau hauv pawg no, koj muaj peev xwm xa ib tug ntaus ntawv parameter raws li ib tug interface. Nws yuav ua tau ntawm ob peb hom. Qhov no muaj xws li nws tus kheej interface los ntawm tus tsim tawm. Nws twb siv ua ntej lawm nyob rau hauv lub scanner qauv. Nws muaj koob meej faded tom qab lub sij hawm los mus hloov cov operating system ntawm ib lub PC. Qhov no yog vim lub fact tias tom qab qhov muag los yog tias tus scanner deprived optimize lawv interface nyob rau hauv ib tug txawv system, thiab yog li ntawd, nws yog tsis tau hauj lwm.

Cov nram qab no interface tau txais ib tug thaum uas tig mus chaw nres nkoj, uas yog tam sim no muaj nyob rau hauv qhov kev kuaj junior flatbed scanners. Cov pab kiag li lawm yog haum nruab nrab thiab tsis txhob sawv ntsug tawm. Lawv feem ntau siv los luam theej duab ib tug yees duab los yog ib tug ob peb nplooj ntawv ntawm cov ntawv nyeem.

PCMCIA interface no kuj muaj nyob ncaw, tab sis, cov SCSI txheem yog rau pab kiag li lawm nrog kev zoo siab thiab kev ua tau zoo. Tam sim no nrog no interface tsim ntau haib tshuab nrog 30 thiab 36-ntsis.

USB-interface - qhov tseeb thiab fashionable kev xaiv. Nws yog kev koom pom zoo rau ntau cov qauv, li cas los xij, yog tsis zoo txaus rau high-end kiag li lawm.

illuminant

Qhov kev xaiv no yog tsis tshua muaj coj mus rau hauv tus account thaum xaiv ib tug scanner. Muaj peb hom kev teeb pom kev zoo:

• xenon;
• fluorescent;
• LED.

Xenon teeb yog me me, lawv yog ntev thiab txawv me ntsis sov-up lub sij hawm. Fluorescent pheej yig txaus, tab sis kuj kav ntev heev. LEDs yog me me, haus me ntsis zog thiab yog sai rhuab. Feem ntau nws yog qhov tseeb LED-scanners pom tau hais tias yuav muaj ntau dua zoo.

muaj ntau haiv neeg

Tom qab nws tuaj ncaj qha mus rau lub scanner, nws tau ua hloov thiab muaj ntau yam. Tam sim no tus ntaus ntawv yuav txwv kom muab zais rau hauv ib tug xov tooj ntawm tsis. Hom scanners thiab lawv cov yam ntxwv muaj tam sim no ua feem ntau txais, thiab kom deb li deb tsis muaj hauj innovation nyob rau hauv daim teb no twb tsis tau pom.

Rau cov pab kiag li lawm rau hauv pawg, nws yog tsim nyog los xav txog cov nram nta:

• Cov duab txoj kev txoj kev;
• cov qauv ntawm cov kinematic mechanism;
• zoo ntawm cov duab;
• yam ntxwv ntawm tus thawj;
• Interfaces: hardware thiab software.

hom

Yog li ntawd, koj yuav khaws ib scanner rau tag nrho cov saum toj no tsis. Nws yuav ua tau:

• ntsiav tshuaj;
• phau ntawv no;
• phau ntawv;
• listopryazhnym;
• planetary;
• nruas;
• ultrasound, etc.

Nyob rau hauv dav dav, lub hom scanner ib tug ntau. Peb mam li tham txog qhov yooj yim thiab feem ntau nrov.

Ntsiav tshuaj yog tam sim no lub feem ntau nrov thiab yooj yim mus use. Feem ntau, qhov no hom ntawm cov qauv no heev zoo thiab ceev ceev. Zoo li cov nyob rau hauv tsos mus rau lub ntsiav tshuaj, thiab thiaj li tau txais nws lub npe. Luam theej duab ib daim duab nyob rau hauv xws li ib tug ntaus ntawv, koj yuav tsum qhib lub hau ntawm lub khob ntawv yog muab tso rau lub ntsej muag cia, kaw lub hau thiab nias "pib".

Tes tuav scanner tsis yog lub engine. Yog li ntawd, ua cov duab, koj yuav tsum tsiv mus nyob nws tus kheej. Lub ntsiab kom zoo dua ntawm xws qauv - lawv cov nqi. Tab sis ntau dhau lawm tsis zoo: txom nyem kev daws teeb meem, tsis zoo scan thiab qeeb ceev.

Phau Ntawv scanner yog tsim los lis broshyurnyh cov ntaub ntawv. Luam theej duab cov ntaub ntawv koj xav tau, nws yog tsis tsim nyog mus rau nteg cia tus "ntsej muag", raws li nyob rau hauv cov ntsiav tshuaj, thiab mus txog. Zoo yog zoo heev.

Listopryazhny scanner tsis yog zoo nyob heev. Yuav kom ua ib daim ntawv rau daim ntawv tso rau hauv lub txoj kab txiav thiab ncab nws mus txog shafts hauv. Qhov no scanner ua hauj lwm uas muaj tej yam tswv yim thiab ib los xij.

Planetary ntaus ntawv ua hauj lwm nrog cov ntaub ntawv, uas yog yooj yim puas. Nws eliminates kev sib cuag nrog tus kwv, uas nws tseem tau los tuav lub meej mom ntawm cov khoom.

Nruas unit muaj nyob rau ntawm lub polygraphic qhauj thiab tsim high-zoo duab. Swb scanners ua hauj lwm nrog zaj duab xis slides. Barcode scanners peb ntsib txhua txhua lub sij hawm peb tuaj rau lub khw muag khoom thaum cov nyiaj ntsuab register. 3D ntaus ntawv yog ib yam dab tsi tshiab-fangled. Nws muaj peev xwm luam theej duab real-lub ntiaj teb no tej yam khoom uas yog hloov dua siab tshiab rau cov daim ntawv thiab txia mus ua ib tug peb-dimensional qauv. Ultrasound Scanner - qhov no nto moo ultrasound, siv nyob rau hauv cov tshuaj rau kev kawm hauv nruab nrog cev.

plaub nkaus xwb

Muaj yog ib tug multifunction product (MFP), uas ua ke Duplicator module mechanism fax, tshuab luam ntawv, scanner. Cov yam ntxwv ntawm nws sib txawv. Nyob rau hauv kev, xws li yuav ua tau inkjet, laser los yog LED printing tshuab rau. Raws li cov kev scanner, lub MFP yuav ua tau xim los yog monochrome.

Lub ntsiab kom zoo dua ntawm xws li ib tug ntaus ntawv yog pom tias yuav muaj chaw seem txuag nyob rau hauv tsev los yog nyob rau hauv lub chaw ua hauj lwm. Tus neeg siv yuav tsum tau tsis txav daim ntawv los ntawm ib qhov chaw mus rau lwm lub. Nws yog yooj yim mus ua hauj lwm nrog ib tug ntaus ntawv. MFP kuj muaj ib tug ncaj uas tsis muaj nqi, tus txheeb ze rau tus nqi uas yuav tau them rau ib tug purchase ntawm txhua ntsuas.

Tshiab nyob rau hauv 2016

Thaum koj paub txog cov yam ntxwv ntawm lub scanner, koj yuav pib mus nrhiav rau cov ntaus ntawv. Xyoo no muaj ntau yam tshiab qauv uas tej zaum yuav nyiam tus neeg siv. Piv txwv li, HP ScanJet scanner, ib tug yam ntxwv uas yog impressive, yuav raug nqi xwb 2000 rubles. Nyob rau hauv cov ntaub ntawv no, koj yuav tsum tau muaj rau tus ntaus ntawv nrog ib cov xim tob ntawm 48-ntsis PP, nrov connector USB 2.0 thiab yog sib xws nrog ntau operating systems. Nyob rau hauv dav dav, lub HP scanner, tus yam ntxwv uas yeej ib txwm tau nyob rau theem siab tshaj plaws, yog ua lag luam thawj coj nyob rau hauv no ya. Lub tuam txhab kuj muaj zoo heev qauv ntawm multifunction pab kiag li lawm.

Xyoo no, nyob rau hauv kev ua lag luam thiab cov neeg uas yog impressed tsis tsuas zog, tab sis kuj cov nqi. Scanner Specifications EPSON lub Perfection V850 Pro yog tiag tiag heev. Sib nrug los ntawm qhov tseeb hais tias cov ntsiav tshuaj no ntaus ntawv muaj ib tug adapter rau zaj duab xis sliders thiab ib tug USB 2.0 interface, nws cov ntsiab yam ntxwv yog kev daws teeb meem ntawm 6400 × 9600 dpi. Nrog rau cov kev xaiv lub scanner nqi yog hom twg los ntawm 80 mus 100 txhiab rubles.

Ntawm cov novelties muaj ib pob nyiaj kev xaiv. Scanner Canon CanoScan 9000F nruab nrab. Nws daws teeb meem - 9600 × 9600 dpi. Tus nqi yog 12 txhiab rubles. Xyuas rau cov qauv no mus rau "Quartet." Qhov no yog hais tias marketers dua muab yug mus rau lawv "song", piav txog lub unprecedented xaiv. Nyob rau hauv qhov tseeb, es tsis txhob ntawm 48 khoom peb tau txais tsuas 12. Tus ntawd yog, nyob rau hauv txhua channel 16 tsis txhob cia li 12 khoom. Cuaj kaum, muaj cov neeg uas txaus siab rau lub chaw ua hauj lwm ceev, siab daws teeb meem thiab tsis zoo ntawm cov ntaub ntawv ntawm lub ntaus ntawv.

Nyob rau hauv kev, xaiv ib tug zoo scanner, zaum tsis yuav tsum tau, tshwj xeeb tshaj yog rau cov zoo tib yam cov neeg siv. Luam theej duab cov ntaub ntawv thiab luam ntawm ib tug siab daws teeb meem yog yuav tsum tau. Ultra kev kub ceev no kuj tsis yog ib qho tseem ceeb. Yog li ntawd nws yog zoo dua mus xaiv tus scanner hais tias koj yeej yuav tsum tau nyob rau hauv nws daim ntawv qhia txog functionality.