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






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






3. 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






4. Optical and RFID hybrid






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






6. Inductive coupling and passive backscatter (capacitive coupling)






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






8. 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






9. 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






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






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






12. Inductive coupling and passive backscatter (capacitive coupling)






13. 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)






14. 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






15. IC Chip - Antenna/Inductor - Power Source






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






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






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






19. 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






20. 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






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






22. Die-cut web with adhesive - film face






23. 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.






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






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. Die-cut web adhesive - paper face






27. Determines the read zone of a reader - Also called an antenna pattern - 3D region shaped somewhat like an ellipsoid or a balloon projecting out the front of the antenna. Never uniformly shaped like an ellipsoid but almost always contains deformities






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






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






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






31. UHF and microwave passive tags






32. Continuous web - no adhesive






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






34. 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






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






36. 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






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. 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






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






40. Dead zones that surround protrusions in antenna footprint






41. 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






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






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






44. 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






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






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






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






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






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






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