Feem ntau cov daim npav RFID tseem siv cov yas polymers ua cov khoom siv tseem ceeb. Cov yas polymer feem ntau siv yog PVC (polyvinyl chloride) vim nws ruaj khov, yooj ywm, thiab siv tau ntau yam rau kev ua daim npav. PET (polyethylene terephthalate) yog cov yas polymer thib ob uas siv ntau tshaj plaws hauv kev tsim daim npav vim nws ruaj khov thiab tiv taus cua sov.

Qhov loj tshaj plaws ntawm daim npav RFID yog hu ua "daim npav rho nyiaj txheem", uas yog ID-1 lossis CR80, thiab tau teev los ntawm Lub Koom Haum Txheej Txheem Thoob Ntiaj Teb hauv daim ntawv qhia tshwj xeeb ISO/IEC 7810 (Daim Npav Qhia Tus Kheej - Cov Yam Ntxwv Lub Cev).

ISO/IEC 7810 qhia meej txog ID-1/CR80 qhov ntev sib npaug rau 85.60 x 53.98 hli (3 3/8″ × 2 1/8″), nrog lub vojvoog ntawm 2.88–3.48 hli (kwv yees li 1/8″) cov ces kaum puag ncig. Nyob ntawm seb cov txheej txheem tsim khoom thiab cov neeg siv khoom xav tau dab tsi, qhov tuab ntawm RFID daim npav yog txij li 0.84mm-1mm.

Kev cai loj kuj muaj raws li cov neeg siv khoom xav tau.

Daim Npav RFID Ua Haujlwm Li Cas?

Yooj yim xwb, txhua daim npav RFID muaj lub kav hlau txais xov tooj cua txuas nrog RFID IC, yog li nws tuaj yeem khaws thiab xa cov ntaub ntawv los ntawm cov nthwv dej xov tooj cua. Cov npav RFID feem ntau siv cov thev naus laus zis RFID tsis siv neeg thiab tsis tas yuav muaj hluav taws xob sab hauv. Cov npav RFID ua haujlwm los ntawm kev txais lub zog hluav taws xob electromagnetic uas cov nyeem RFID tso tawm.

Raws li ntau zaus, RFID daim npav raug muab faib ua plaub pawg.

Daim npav RFID zaus tsawg 125KHz, nyeem ntawv nrug 1-2cm.

Daim npav RFID zaus siab 13.56MHz, nyeem tau deb txog li 10cm.

860-960MHz UHF RFID daim npav, nyeem ntawv nrug 1-20 meters.

Peb kuj tseem tuaj yeem muab ob lossis peb qhov sib txawv sib txawv ua ke rau hauv ib daim npav RFID.

Xav tiv tauj peb thiab tau txais cov qauv dawb rau koj qhov kev kuaj RFID.