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. Brains of the RFID tag






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






3. Optical and RFID hybrid






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






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






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






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






9. Continuous web - no adhesive






10. Die-cut web adhesive - paper face






11. 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






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






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






14. '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






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






16. 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






17. Serves as writable or non-writable data storage






18. Dead zones that surround protrusions in antenna footprint






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






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






21. 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.






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






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






24. 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






25. 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






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






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






28. The act of writing the tag data by reader






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






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






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






32. UHF and microwave passive tags






33. 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






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. Measurement of power for radiation of antenna used in Europe






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






37. 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.






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






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






42. 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






43. 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






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






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






46. 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






47. 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






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






49. 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






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







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