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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. Interprets the signal received from reader and controls memory storage and retrieval
Processor
Power Source
Integrated Circuit Chips
Pattern(Footprint)
2. Receives analog signals from the tag via the reader antenna
Tag Anti-Collision Protocols
Receiver
Types of tags
Reader Antennas
3. In this mode - reader continuously reads tags in its read zone
Autonomous Mode
Control Circuitry
Decommissioning The Tag
Pattern(Footprint)
4. Proximity systems (low range -mm) medium range (cm) and long range (m)
Commissioning The Tag
ALOHA
Read range
Antenna/Inductor
5. Used to transmit AC power and the clock cycle via its antennas to the tags in its read zone
Memory
Transmitter
Coupling Element
RFID SyCommunication methods
6. Brains of the RFID tag
Integrated Circuit Chips
Flip-chip (Chip-to-Tag)
Polarization
RFID Printer
7. Die-cut web with adhesive - film face
Antenna/Inductor
Strap-to-Tag
Wet Inlay
RFID SyCommunication methods
8. Die used to "stamp" out the shape of antenna. Take up roller rolls the unused material into waste roll.
Microwave Frequency
Memory
Foil Stamping
Read range
9. 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
Autonomous Mode
Serial Reader
Memory
RFID Printer
10. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.
Microprocessor
Commissioning The Tag
Tag Antenna Construction
Slotted ALOHA
11. 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
Serial Reader
UHF
Agile Reader
Polarization
12. Smart cards - smart label - etc.
Persist Time
Pattern(Footprint)
Types of tags
RFID Reader
13. 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
Receiver
Polarization
Microwave Frequency
14. Tags collide completely or not at all (Theoretically proven maximum utilization= 36.8%)
Slotted ALOHA
Autonomous Mode
Screen Printing
Microwave Frequency
15. 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
Serial Reader
Power Source
Read range
Dry Inlay
16. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves
RFID SyCommunication methods
Smart Label
Foil Stamping
Polarization
17. The 3D energy field generated by the antenna (also called reading area)
Pattern(Footprint)
Slotted ALOHA
Tag Generations
Read range
18. Measurement of power for radiation of antenna used in Europe
Effective Radiated Power (ERP)
Copper Etching
Dry Inlay
Power Source
19. The act of writing the tag data by reader
Polarization
Creating A Tag
Reader Antenna
RFID Reader
20. Low Frequency(LF) - High Frequency(HF) - Ultra high frequency (UHF) and Microwave frequency
Circular Polarized Reader Antenna
Types of Tag Frequencies
Tag class
Processor
21. Die-cut web adhesive - paper face
Modulation Circuitry
Types of Tag Frequencies
Tag
Tag List
22. 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
Stationary Reader
Types of Tag Frequencies
Persist Time
Passive Backscatter (Capacitive Coupling)
23. 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
Copper Etching
Annunciator
Main Components of RFID Tag
24. Every time a tag is read - it is saved to this
Tag List
Receiver
Screen Printing
Slotted ALOHA
25. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation
Antenna/Inductor
Circular Polarized Reader Antenna
Copper Etching
Linear Polarized Antenna
26. 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
Foil Stamping
Passive Backscatter (Capacitive Coupling)
Coupling Element
Reader Antennas
27. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)
RFID SyCommunication methods
Antenna Footprint
Agile Reader
Decommissioning The Tag
28. 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)
Destructive Interference
Circular Polarized Antenna
Pattern(Footprint)
ALOHA
29. Open image in meshed screens. Conductive ink "squeezed" thru open mesh.
Tag Antenna Construction
Screen Printing
Tag Standards
Antenna/Inductor
30. '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
Tag Antenna Construction
RFID Reader
Dry Inlay
Microprocessor
31. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.
Memory
Annunciator
Reader Antennas
RFID Reader
32. 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...
Destructive Interference
ALOHA
Tag Antenna Construction
RFID Reader
33. 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
Transmitter
Coupling Element
Attenuator
Serial Reader
34. Pattern(Footprint) - Power/Attenuation - and Polarization
Tag Antenna Construction
Duty Cycle
Characteristics Of Antennas That Contribute To Tag Readability
RFID Reader
35. Reader transmits a continuous-wave RF signal into the reading environment
Passive Backscatter (Capacitive Coupling)
Sensor
Creating A Tag
Microwave Frequency
36. Neighboring readers interrogate a tag simultaneously (can be easily solved because they can detect this and communicate to each other)
Circular Polarized Antenna
Reader Collision
Stationary Reader
Microwave Frequency
37. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.
ALOHA
Actuator
Characteristics Of Antennas That Contribute To Tag Readability
Passive Backscatter (Capacitive Coupling)
38. Standards = EPC global & ISO 18000 - Different Organizations
Adaptive Binary Tree Anti-Collision
Tag Standards
Power/Attenuation
ALOHA
39. Time for an associated tag to be read
Agile Reader
Antenna/Inductor
Flip-chip (Chip-to-Tag)
Persist Time
40. When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result
Destructive Interference
UHF
RFID Reader
Stationary Reader
41. Dead zones that surround protrusions in antenna footprint
Strap-to-Tag
Nulls(Voids)
Creating A Tag
Tag
42. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible
Attenuator
Tag Generations
Passive Backscatter (Capacitive Coupling)
Circular Polarized Reader Antenna
43. 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
Screen Printing
PLC
Effective Radiated Power (ERP)
ALOHA
44. In this this antenna type - the RF waves emanate in a linear pattern from the antenna. Waves have only one energy field
Attenuator
RFID Printer
Linear Polarized Antenna
Interactive Mode
45. 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
Interactive Mode
Tag Anti-Collision Protocols
Passive Communication Methods
Effective Radiated Power (ERP)
46. IC Chip - Antenna/Inductor - Power Source
Passive Backscatter (Capacitive Coupling)
Main Components of RFID Tag
Nulls(Voids)
Attenuator
47. Continuous web - no adhesive
Linear Polarized Antenna
Reader Antenna
Characteristics Of Antennas That Contribute To Tag Readability
Dry Inlay
48. 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.
Integrated Circuit Chips
Actuator
Coupling Element
Agile Reader
49. 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
Annunciator
ALOHA
Inductive Coupling
ALOHA
50. More than one tag tries to respond to a reader at the same time.
Microprocessor
Tag
Read range
Tag Collision