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Test your basic knowledge |
RFID Technology
Start Test
Study First
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. Proximity systems (low range -mm) medium range (cm) and long range (m)
Read range
Strap-to-Tag
Tag Standards
Foil Stamping
2. To disassociate the tag from a tagged object and optionally destroy it
Coupling Element
Reader Antenna
Decommissioning The Tag
Tag Standards
3. Also called an 'interrogator' - A device that can read from and write data to compatible RFID tags - Also doubles up as a writer
Foil Stamping
RFID Reader
Reader Antenna
Interactive Mode
4. 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...
Polarization
Tag Anti-Collision Protocols
Tag Antenna Construction
Screen Printing
5. 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.
Wet Inlay
Screen Printing
Power/Attenuation
Flip-chip (Chip-to-Tag)
6. Every time a tag is read - it is saved to this
Actuator
Linear Polarized Antenna
PLC
Tag List
7. 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
Antenna Footprint
Tag Generations
Duty Cycle
Types of Tag Frequencies
8. Die-cut web adhesive - paper face
Passive Backscatter (Capacitive Coupling)
Tag
Modulation Circuitry
Persist Time
9. 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
Coupling Element
Passive Communication Methods
Passive Backscatter (Capacitive Coupling)
UHF
10. Pattern(Footprint) - Power/Attenuation - and Polarization
RFID Printer
RFID Reader
Characteristics Of Antennas That Contribute To Tag Readability
Tag List
11. The reflection of reader antenna signals on RF-opaque causes this
Multipath
Passive Backscatter (Capacitive Coupling)
Types of Tag Frequencies
Processor
12. Die used to "stamp" out the shape of antenna. Take up roller rolls the unused material into waste roll.
Adaptive Binary Tree Anti-Collision
Foil Stamping
Serial Reader
Low Frequency (LF)
13. Measurement of power for radiation of antenna used in Europe
Effective Radiated Power (ERP)
Destructive Interference
Adaptive Binary Tree Anti-Collision
Smart Label
14. Readability of a tag greatly depends on this and the angle at which the tag is presented to the reader
Creating A Tag
Polarization
Wet Inlay
Tag
15. Low Frequency(LF) - High Frequency(HF) - Ultra high frequency (UHF) and Microwave frequency
Power Source
Linear Polarized Antenna
Types of Tag Frequencies
Inductive Coupling
16. 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
PLC
Linear Polarized Reader Antenna
Modulation Circuitry
Polarization
17. changes signal received from reader to include data that will be transmitted back to the reader
Tag Collision
UHF
Flip-chip (Chip-to-Tag)
Modulation Circuitry
18. In this mode - reader continuously reads tags in its read zone
Interactive Mode
Autonomous Mode
Pattern(Footprint)
Circular Polarized Reader Antenna
19. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.
Polarization
Antenna Footprint
Slotted ALOHA
RFID Reader
20. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible
Low Frequency (LF)
Tag Generations
Passive Backscatter (Capacitive Coupling)
Annunciator
21. IC Chip - Antenna/Inductor - Power Source
Autonomous Mode
Main Components of RFID Tag
Passive Backscatter (Capacitive Coupling)
Attenuator
22. 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
Strap-to-Tag
Reader Antenna
Reader Collision
Passive Communication Methods
23. Mount the tiny chip to a strap - Greater handling ability - Possibility to use very small chips - Possibility of higher volume production - Fluidic Self Assembly
Strap-to-Tag
Memory
Linear Polarized Reader Antenna
Reader Antenna
24. 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
Microwave Frequency
Stationary Reader
Actuator
Circular Polarized Reader Antenna
25. controls the internal functions under the command of the processor
Control Circuitry
Tag Anti-Collision Protocols
Tag Generations
Agile Reader
26. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.
Polarization
Control Circuitry
Tag
Annunciator
27. Process of creating a tag and uniquely associating it with an object
Integrated Circuit Chips
Commissioning The Tag
Characteristics Of Antennas That Contribute To Tag Readability
Tag List
28. Optical and RFID hybrid
Smart Label
Copper Etching
Memory
RFID Reader
29. The time during which a reader can emit RF energy to read tags
Screen Printing
Annunciator
Duty Cycle
Smart Label
30. Die-cut web with adhesive - film face
Processor
Antenna/Inductor
Low Frequency (LF)
Wet Inlay
31. Inductive coupling and passive backscatter (capacitive coupling)
Effective Radiated Power (ERP)
Slotted ALOHA
Passive Communication Methods
Control Circuitry
32. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.
Actuator
Annunciator
Microwave Frequency
Persist Time
33. Reader transmits a continuous-wave RF signal into the reading environment
Tag Collision
Passive Backscatter (Capacitive Coupling)
Transmitter
Actuator
34. In this this antenna type - the RF waves emanate in a linear pattern from the antenna. Waves have only one energy field
Tag List
Linear Polarized Antenna
UHF
Memory
35. Measurement of power for radiation of antenna used in US
Modulation Circuitry
RFID SyCommunication methods
Microwave Frequency
Equivalent Isotropic Radiated Power (EIRP)
36. 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
Smart Label
Screen Printing
Memory
Inductive Coupling
37. 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
Interactive Mode
Circular Polarized Antenna
Sensor
RFID Reader
38. 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
RFID Printer
Circular Polarized Reader Antenna
Attenuator
Passive Backscatter (Capacitive Coupling)
39. Serves as writable or non-writable data storage
Commissioning The Tag
Memory
Equivalent Isotropic Radiated Power (EIRP)
Antenna/Inductor
40. Class= Functionality - - Class 0 -1 -2 -3 -4 & 5
Receiver
Tag class
Sensor
Tag Collision
41. 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
Duty Cycle
RFID Printer
Tag Anti-Collision Protocols
Tag List
42. The 3D energy field generated by the antenna (also called reading area)
Slotted ALOHA
Stationary Reader
Nulls(Voids)
Pattern(Footprint)
43. 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)
RFID Printer
Polarization
Circular Polarized Antenna
Inductive Coupling
44. Continuous web - no adhesive
Effective Radiated Power (ERP)
Dry Inlay
Multipath
Duty Cycle
45. The act of writing the tag data by reader
Polarization
RFID SyCommunication methods
Constructive Interference
Creating A Tag
46. These are categorized into Aloha based protocols and tree based
Types of Tag Frequencies
Read range
Tag Anti-Collision Protocols
Strap-to-Tag
47. Similar to guessing a number made of 1's and 0's by guessing each number one at a time
Adaptive Binary Tree Anti-Collision
Annunciator
Creating A Tag
RFID Reader
48. 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
Attenuator
Stationary Reader
Wet Inlay
Coupling Element
49. '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
Circular Polarized Antenna
RFID Reader
Passive Communication Methods
Wet Inlay
50. Smart cards - smart label - etc.
Tag List
Processor
Types of tags
Microprocessor