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Radio Frequency Identification (RFID)

Radio Frequency Identification (RFID). What does an RFID tag look like?. microprocessor. radio antenna. Where’s the battery?!. Photo courtesy Getty Images. Physics Review - Induction. run electricity through a coil of wire an electro magnetic field is generated

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Radio Frequency Identification (RFID)

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  1. Radio Frequency Identification (RFID)

  2. What does an RFID tag look like? microprocessor radio antenna Where’s the battery?! Photo courtesy Getty Images

  3. Physics Review - Induction • run electricity through a coil of wire • an electromagnetic field is generated • works the opposite way too!

  4. RFID antenna • passing through an electromagnetic radio field powers the tag! • chip sends back a response using the antenna • response is an ID # back to the RFID reader Photo courtesy Getty Images

  5. Where do we see RFIDs?

  6. Supply chain usage of RFID • efficiently count and track goods! http://msdn.microsoft.com/en-us/library/ms954628.aspx

  7. Other RFID uses • authentication • proximity access cards • passports • student attendance tracking • any wireless tagging

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