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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. Die-cut web with adhesive - film face
Wet Inlay
Modulation Circuitry
Agile Reader
RFID Printer
2. These are categorized into Aloha based protocols and tree based
Processor
Reader Antennas
Decommissioning The Tag
Tag Anti-Collision Protocols
3. controls the internal functions under the command of the processor
Passive Communication Methods
Power Source
Adaptive Binary Tree Anti-Collision
Control Circuitry
4. The act of writing the tag data by reader
RFID Printer
Creating A Tag
Destructive Interference
Tag Anti-Collision Protocols
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
Memory
Strap-to-Tag
Dry Inlay
Constructive Interference
6. More than one tag tries to respond to a reader at the same time.
Destructive Interference
Constructive Interference
Annunciator
Tag Collision
7. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)
Agile Reader
Equivalent Isotropic Radiated Power (EIRP)
Sensor
ALOHA
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
Microwave Frequency
Reader Antenna
Memory
Commissioning The Tag
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
Reader Collision
Circular Polarized Reader Antenna
Memory
Antenna/Inductor
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.
Antenna Footprint
Coupling Element
Antenna/Inductor
Pattern(Footprint)
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
Tag Anti-Collision Protocols
Linear Polarized Reader Antenna
Serial Reader
Receiver
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
Polarization
Creating A Tag
Stationary Reader
Tag class
13. The 3D energy field generated by the antenna (also called reading area)
Pattern(Footprint)
Read range
Microprocessor
Strap-to-Tag
14. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.
Multipath
RFID SyCommunication methods
Annunciator
Slotted ALOHA
15. Measurement of power for radiation of antenna used in US
Decommissioning The Tag
Characteristics Of Antennas That Contribute To Tag Readability
Memory
Equivalent Isotropic Radiated Power (EIRP)
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
Sensor
Reader Collision
Constructive Interference
Main Components of RFID Tag
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
Slotted ALOHA
Wet Inlay
Reader Antenna
Memory
18. To disassociate the tag from a tagged object and optionally destroy it
Decommissioning The Tag
Microwave Frequency
Control Circuitry
Passive Communication Methods
19. Die used to "stamp" out the shape of antenna. Take up roller rolls the unused material into waste roll.
Strap-to-Tag
Microprocessor
Foil Stamping
Antenna Footprint
20. The time during which a reader can emit RF energy to read tags
Passive Backscatter (Capacitive Coupling)
Memory
Tag Antenna Construction
Duty Cycle
21. Receives signal from reader and radiates a response back to the reader - LF or HF: induction coil - UHF or Microwave Frequency: printed antennas
Antenna/Inductor
Modulation Circuitry
Main Components of RFID Tag
Passive Backscatter (Capacitive Coupling)
22. Used to transmit AC power and the clock cycle via its antennas to the tags in its read zone
Types of Tag Frequencies
Transmitter
RFID Reader
Pattern(Footprint)
23. Process of creating a tag and uniquely associating it with an object
RFID Reader
Commissioning The Tag
Power Source
Modulation Circuitry
24. Interprets the signal received from reader and controls memory storage and retrieval
Processor
Duty Cycle
Copper Etching
Polarization
25. Serves as writable or non-writable data storage
Autonomous Mode
Memory
RFID Printer
Reader Antenna
26. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation
Linear Polarized Reader Antenna
Copper Etching
ALOHA
Characteristics Of Antennas That Contribute To Tag Readability
27. Open image in meshed screens. Conductive ink "squeezed" thru open mesh.
Interactive Mode
Creating A Tag
Modulation Circuitry
Screen Printing
28. When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result
Reader Antenna
Interactive Mode
Linear Polarized Reader Antenna
Destructive Interference
29. Inductive coupling and passive backscatter (capacitive coupling)
RFID SyCommunication methods
Modulation Circuitry
Polarization
RFID Reader
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
Multipath
Inductive Coupling
Effective Radiated Power (ERP)
ALOHA
31. IC Chip - Antenna/Inductor - Power Source
Main Components of RFID Tag
Control Circuitry
RFID SyCommunication methods
Actuator
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
Tag class
PLC
Duty Cycle
Transmitter
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
Characteristics Of Antennas That Contribute To Tag Readability
Wet Inlay
ALOHA
Read range
34. Optical and RFID hybrid
Reader Antenna
Tag class
Smart Label
Tag Generations
35. Used for storing data such as the reader configuration parameters and a list of tag reads
Control Circuitry
Destructive Interference
Smart Label
Memory
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
Power Source
Antenna/Inductor
ALOHA
Processor
37. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.
Passive Backscatter (Capacitive Coupling)
Slotted ALOHA
Transmitter
Sensor
38. Neighboring readers interrogate a tag simultaneously (can be easily solved because they can detect this and communicate to each other)
Characteristics Of Antennas That Contribute To Tag Readability
Types of tags
Duty Cycle
Reader Collision
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
Annunciator
RFID Printer
Polarization
Modulation Circuitry
40. The reflection of reader antenna signals on RF-opaque causes this
Copper Etching
Processor
Multipath
Transmitter
41. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves
PLC
Polarization
Constructive Interference
Creating A Tag
42. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.
Power Source
Memory
Actuator
Commissioning The Tag
43. Reader transmits a continuous-wave RF signal into the reading environment
Tag Anti-Collision Protocols
Integrated Circuit Chips
RFID SyCommunication methods
Passive Backscatter (Capacitive Coupling)
44. Proximity systems (low range -mm) medium range (cm) and long range (m)
Reader Collision
Reader Antenna
Low Frequency (LF)
Read range
45. Receives analog signals from the tag via the reader antenna
Sensor
Linear Polarized Antenna
Receiver
Nulls(Voids)
46. When two waves (in phase) impose on each other and enhance the original signal and give rise to protrusions
Tag class
Constructive Interference
ALOHA
Actuator
47. Inductive coupling and passive backscatter (capacitive coupling)
Passive Communication Methods
Polarization
Tag Collision
Read range
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
Passive Backscatter (Capacitive Coupling)
UHF
Smart Label
Agile Reader
49. Similar to guessing a number made of 1's and 0's by guessing each number one at a time
Interactive Mode
Adaptive Binary Tree Anti-Collision
Microwave Frequency
RFID SyCommunication methods
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
RFID Reader
Power/Attenuation
Tag Collision
Commissioning The Tag