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. Die-cut web with adhesive - film face






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






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






4. The act of writing the tag data by reader






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






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






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






8. 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






9. 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






10. 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.






11. RF energy radiates from antenna in linear fashion - Provide longest range - Sensitive to the orientation of tag - Has single E-field component - Can have a narrow beam pattern - Best for application with known tag orientation






12. 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






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






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






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






16. 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






17. 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






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






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






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






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






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






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






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






25. Serves as writable or non-writable data storage






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






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






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






29. Inductive coupling and passive backscatter (capacitive coupling)






30. 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






31. IC Chip - Antenna/Inductor - Power Source






32. 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






33. 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






34. Optical and RFID hybrid






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






36. 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






37. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.






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






39. 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






40. The reflection of reader antenna signals on RF-opaque causes this






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






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






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






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






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






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






47. Inductive coupling and passive backscatter (capacitive coupling)






48. 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






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






50. '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