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






2. Open image in meshed screens. Conductive ink "squeezed" thru open mesh.






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






4. 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






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






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






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






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






9. Inductive coupling and passive backscatter (capacitive coupling)






10. 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






11. These are categorized into Aloha based protocols and tree based






12. '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






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






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






15. Brains of the RFID tag






16. 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






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






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






19. Smart cards - smart label - etc.






20. 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.






21. Inductive coupling and passive backscatter (capacitive coupling)






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






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






24. Die-cut web adhesive - paper face






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






26. 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






27. 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






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






29. Measurement of power for radiation of antenna used in US






30. This type of antenna is largely unaffected by tag orientation - Preferred in system that uses high UHF or microwave frequencies in an operating environment where there is a high degree of RF reflectance (due to presence of metals and so forth)






31. 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






32. Dead zones that surround protrusions in antenna footprint






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






34. 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...






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






36. changes signal received from reader to include data that will be transmitted back to the reader






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






38. Time for an associated tag to be read






39. IC Chip - Antenna/Inductor - Power Source






40. Die-cut web with adhesive - film face






41. Continuous web - no adhesive






42. Serves as writable or non-writable data storage






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






44. 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






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






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






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






48. UHF and microwave passive tags






49. 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






50. 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