Test your basic knowledge |

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






2. Smart cards - smart label - etc.






3. Type of stationary reader that can print a bar code and create (i.e. write) an RFID tag on a smart label in an integrated operation - Reads the smart label tag that it has just written to validate the write operation. If the validation fails - it rej






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






5. The act of writing the tag data by reader






6. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves






7. 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






8. Die-cut web adhesive - paper face






9. Inductive coupling and passive backscatter (capacitive coupling)






10. In this this antenna type - the RF waves emanate in a linear pattern from the antenna. Waves have only one energy field






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






12. Interprets the signal received from reader and controls memory storage and retrieval






13. Uses a serial communication link to communicate with an application - Reader is physically connected to a computer's serial port using an RS-232 or RS-485 serial connection. Both of these connections have an upper limit on the cable length that can b






14. 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






15. Inductive coupling and passive backscatter (capacitive coupling)






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






17. LF and HF passive tags - Current flowing through a conductor generates a magnetic field around the conductor and vice versa - Readers antenna uses current to generate magnetic field - Tag's antenna when exposed to the magnetic field generates the cur






18. Why ___________ is better: Cost of printed antennas varies between 24-44% of copper antennas - Printed antennas show 93-96% radiation efficiency compared to copper antennas...






19. Continuous web - no adhesive






20. Optical and RFID hybrid






21. Standards = EPC global & ISO 18000 - Different Organizations






22. Ranges upward from 1 GHz - Typically operates at either 2.45 GHz or 5.8 GHz - Can use both semi-active and passive tags - Has FASTEST data-transfer rate between tag and reader - Performs poorly in presence of metals and liquids - Antenna of a passive






23. 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.






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






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






26. In this mode - reader continuously reads tags in its read zone






27. Die-cut web with adhesive - film face






28. Brains of the RFID tag






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






30. More than one tag tries to respond to a reader at the same time.






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






32. Also called a fixed reader - Mounted on a wall - portal - or some suitable structure in the read zone. Readers not generally very tolerant of harsh environmental conditions - therefore if installed outdoors or on moving objects - take care to ruggedi






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






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






35. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation






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






37. When two waves (in phase) impose on each other and enhance the original signal and give rise to protrusions






38. 'Central nervous system' of entire RFID hardware system. Establishing communication with and control of this component is the most important task of any entity which seeks integration






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






40. Dead zones that surround protrusions in antenna footprint






41. IC Chip - Antenna/Inductor - Power Source






42. Class= Functionality - - Class 0 -1 -2 -3 -4 & 5






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






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






45. 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%)






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






47. UHF and microwave passive tags






48. RF energy radiates from antenna in circular fashion - Slightly reduced range - Provides greater tolerance to tags in various orientation and bounce off of and bypass obstructions - 2 E-field components that are equal in magnitude - 90 degrees out of






49. Process of creating a tag and uniquely associating it with an object






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