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RFID Technology

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The sender of this found out whether the transmission was successful by listening to the broadcast. If there was a collision - the sender transmitted after a random waiting period. The tags periodically send data packets with random quiet periods and






2. Developed in the 1970s for a radio packet network at the University of Hawaii (hence the name) - 4 tags and 1 reader - Allows tags to collide partially (Theoretically proven maximum utilization=18.4%)






3. Similar to guessing a number made of 1's and 0's by guessing each number one at a time






4. Smart cards - smart label - etc.






5. Low Frequency(LF) - High Frequency(HF) - Ultra high frequency (UHF) and Microwave frequency






6. The 3D energy field generated by the antenna (also called reading area)






7. Used to transmit AC power and the clock cycle via its antennas to the tags in its read zone






8. Die used to "stamp" out the shape of antenna. Take up roller rolls the unused material into waste roll.






9. Time for an associated tag to be read






10. Proximity systems (low range -mm) medium range (cm) and long range (m)






11. Readability of a tag greatly depends on this and the angle at which the tag is presented to the reader






12. Neighboring readers interrogate a tag simultaneously (can be easily solved because they can detect this and communicate to each other)






13. Tags collide completely or not at all (Theoretically proven maximum utilization= 36.8%)






14. Responsible for implementing the reader protocol to communicate with compatible tags






15. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.






16. Fixed to meet FCC and other regulatory requirements. The signal can be decreased or attenuated to limit the tag read window or aim it only at tags you want to read






17. Can reduce power by placing this device in the transmission line. As a result - the antennas signal is reduced and the read range diminished. Proves useful in situations where the read zone needs to be constrained as a part of system requirements so






18. Receives signal from reader and radiates a response back to the reader - LF or HF: induction coil - UHF or Microwave Frequency: printed antennas






19. UHF and microwave passive tags






20. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)






21. Measurement of power for radiation of antenna used in Europe






22. Can automatically turn on/off reader based on some external event detected. Can be used to provide some kind of input trigger to a reader






23. Frequencies between 30-300 KHz - Generally use passive tags - have low data-transfer rates from the tag to the reader - and are especially good if the operating environment contains metals - liquids - dirt - snow - or mud. Active tags also available






24. Ranges from 300 MHz to 1GHz - Passive system operates at 915 MHz in the US and at 868 MHz in Europe - Active system operates at 315 MHz and 433 MHz - Can use both active and passive tags - Has a fast data-transfer rate between tag and reader - but pe






25. Also called an 'interrogator' - A device that can read from and write data to compatible RFID tags - Also doubles up as a writer






26. Mount the tiny chip to a strap - Greater handling ability - Possibility to use very small chips - Possibility of higher volume production - Fluidic Self Assembly






27. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.






28. controls the internal functions under the command of the processor






29. Reader transmits a continuous-wave RF signal into the reading environment






30. Dead zones that surround protrusions in antenna footprint






31. Silicon chip is picked up by robotized arm using precise vacuum nozzle. Chip is flipped so that its electrical contacts point face down. Chip is aligned with the antenna and pressure and heat is applied.






32. Most sensitive component of an RFID system - Housed in enclosures for easy mounting. Look like plain - shallow boxes. - Varying placement of this is usually the easiest adjustment while troubleshooting and is vital to achieving a high read rate






33. Inductive coupling and passive backscatter (capacitive coupling)






34. Every time a tag is read - it is saved to this






35. One of the most versatile actuators. Widely used in manufacturing plants. They enable a variety of actions to be performed (such as monitoring and controlling a product packaging line - or applying a predetermined amount of torque to nuts in a mechan






36. Broadcasts the reader transmitter's RF signal into its surroundings and receives tag responses on the reader's behalf. Therefore - proper positioning of these (NOT THE READERS) is essential for good read accuracy






37. When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result






38. IC Chip - Antenna/Inductor - Power Source






39. Reader communicates to a tag through reader's antennas - a separate device that is physically attached to a reader - at one of its antenna ports - by means of cable. Called this because it creates an electromagnetic field to couple with the tag.






40. Pattern(Footprint) - Power/Attenuation - and Polarization






41. The time during which a reader can emit RF energy to read tags






42. Optical and RFID hybrid






43. Used for storing data such as the reader configuration parameters and a list of tag reads






44. Provides electrical power to other tag elements - Can harvest power from the signal received from the reader - Can have its own internal power source - Active - semi-passive and passive






45. Die-cut web with adhesive - film face






46. Receives analog signals from the tag via the reader antenna






47. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible






48. To disassociate the tag from a tagged object and optionally destroy it






49. Reader receives and executes commands from an application running on a host machine from a user using a vendor-supplied client to communicate with the reader. After reader fully executes the current command - it waits for the next. Reader can execute






50. Serves as writable or non-writable data storage






Can you answer 50 questions in 15 minutes?



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