Scanner The faraha iyada oo loo adeegsanayo sugida user

Si aad u taariikhda, computerization bulshada ka dhigaysa noo raadiyo habab kala duwan si ay u xaddido helitaanka macluumaadka ku kaydsan kombiyuutarka. Waxaa intaa dheer, oggolaansho user iyo habka sugida for password waa mid ka mid ah kuwa ugu badan, inkastoo ay leedahay cillado fara badan. badiilka ah ilaalinta password noqon kartaa sugida user a-beegyada uu jismiyeed, sida faraha a. Iyo waxa ay qaadataa oo keliya scanner ah faraha iyo software la xidhiidha, kaas oo ka yimaadaa iyada oo qalab ah.

Waa maxay scanner faraha

scanner faraha waa qalab akhriyaa image faraha kula dhan qaababka ay qaab faraha ah, iyo gudbiya natiijada scan in software ah. codsi khaas ah barbardhigay image la model ah abuuray markii marxaladda of password a jismiyeed.

Noocyada lagaga qaadayaa faraha

All lagaga qaadayaa faraha, kuwaas oo hadda la isticmaalo, loo kala saari karaa saddex kooxood, oo ku salaysan mabda'a jirka ah ee shaqada:

- Semiconductor (Silicon);

- indhaha;

- ultrasound.

scanners Semiconductor

Noocan ah scanner hesha image ah oo ku salaysan guryaha Semiconductor in la beddelo degaanka xiriir ah images faraha iyo scanner ah. Hawlgalka ayaa noocan ah ee qalabka iskaanka jiifsan laga yaabaa in dhowr teknoolajiyada:

- scanners Capacitive. Hawlgalka ayaa ka mid ah scanners sida waa saamaynta in awooda in pn-guurka qalab Semiconductor dul xiriir tiixtiix faraha iyo xubno Semiconductor ee maxalka furta oo kala duwan.

- a scanners cadaadis-xasaasi ah. scanner The faraha noocan ah shaqadiisu isticmaalaya isugu soo gaar ah oo xubno ka piezoelectric. Marka farta waa in xiriir la furta, tiixtiix waxaa culays iyada on, iyo niyad-jab, siday u kala horreeyaan, ma. Iyada oo ku saleysan cadaadiska iyo cunfiga by furta, iyo sanam la aasaasay.

- thermo scanners-. Qalabka iskaanka noocan ah waa dareemayaal used oo ka kooban xubno ka pyroelectric. dareemayaal Kuwani qoraan farqiga heerkulka, ka dib markii taas waxaa beddelay danab a.

- scanners RF. Scanners noocan ah waxay ka kooban yihiin mikroantenn in ay curiyaan signal daciif ah, iyo in ay jawaab u qiimaha helay faraha ka xoog electro-sabab ahbaa image faraha final.

- Broaching thermo scanners-. Mid ah sida ay thermo scanners-. Faraqa kaliya ee waa in aad qabato farta dushiisa iskaanka, oo ha codsan.

- Capacitive scanner sheetfed. technology ee soo saara image faraha waa isku mid sida in capacitance ah, laakiin habka diyaarinta waxaa lagu gartaa in farta waxaa lagu fuliyaa dushiisa iskaanka.

- RF scanner sheetfed. Mabda'a hawlgalka ee qalabka waa isku mid sida ee qalabka raadiyaha ee hirka, laakiin habka ay u saareen image ma aha codsiga faraha in qalabka, iyo in haysta fartaada guud ahaan ay dusha sare.

scanners indhaha

scanner The faraha noocan ah hesha image farta loo marayo hab indhaha. Hawlgalka ayaa aaladaha noocan ah yihiin farsamooyinka kala duwan

- FTIR-scanners. qalabka ay isticmaalaan saamayn milicsiga gudaha waxaa daciif ah.

- scanners Fiber-optic. shidma faraha waa fiber indhaha furta ah, kuna waari dhexdeeda fiber kasta ka kooban photocell ah.

- scanners-Korontada indhaha. Diyaarinta image ka timaadaa polymer ku electrooptic in lagu daro lakabka light-emitting ah.

- scanner sheetfed indhaha. Noocan ah qalabka waa qalabka fiber Hadba taas oo imaging waa lagama maarmaan si ay u fuliyaan fartaada guud ahaan dusha sare oo mana ay codsanayso.

- scanners duuban. Si aad u hesho image ah aad u baahan tahay in la qabto fartaada ku duuban, halkaas oo ma images farta la nidaamyada papillary.

- scanners Non-xiriir. scan farta waxaa lagu fuliyaa hab contactless ah. farta waxaa laga codsadaa in godka halka uu ciinwaanka by ilo kala duwan, iyo camera dhisay-in qabsatay image ee farta.

scanners ultrasound

Noocan ah aalad uu baaritaanku dusha sare ee hirarka ultrasonic in farta, oo ku saleysan masaafada u cabbiran ee hirarka ka muuqataa ka Niyadjabka iyo saadaasha ay u dhisan tahay image. Noocan ah qalab ka duwan ee kor ku xusan baaro in natiijada iskaanka waa tayo fiican.