SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.
Annunciator
Antenna Footprint
Sensor
RFID Reader
2. Reader transmits a continuous-wave RF signal into the reading environment
Power Source
Types of tags
Passive Backscatter (Capacitive Coupling)
Tag Anti-Collision Protocols
3. controls the internal functions under the command of the processor
Control Circuitry
Types of Tag Frequencies
Characteristics Of Antennas That Contribute To Tag Readability
Antenna Footprint
4. UHF and microwave passive tags
Passive Backscatter (Capacitive Coupling)
Characteristics Of Antennas That Contribute To Tag Readability
Memory
Slotted ALOHA
5. 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
Low Frequency (LF)
ALOHA
RFID Reader
Destructive Interference
6. Class= Functionality - - Class 0 -1 -2 -3 -4 & 5
ALOHA
Tag class
Microprocessor
Tag Standards
7. Low Frequency(LF) - High Frequency(HF) - Ultra high frequency (UHF) and Microwave frequency
Foil Stamping
Stationary Reader
Flip-chip (Chip-to-Tag)
Types of Tag Frequencies
8. Every time a tag is read - it is saved to this
Tag
Circular Polarized Antenna
Annunciator
Tag List
9. Optical and RFID hybrid
Smart Label
Screen Printing
Sensor
UHF
10. Die-cut web with adhesive - film face
Reader Antennas
Passive Backscatter (Capacitive Coupling)
Wet Inlay
Sensor
11. Receives analog signals from the tag via the reader antenna
Tag
Inductive Coupling
Receiver
Wet Inlay
12. 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
Low Frequency (LF)
Memory
Constructive Interference
UHF
13. 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...
RFID Reader
Tag Antenna Construction
Control Circuitry
Agile Reader
14. 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.
Annunciator
Flip-chip (Chip-to-Tag)
ALOHA
Creating A Tag
15. 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
RFID Reader
Foil Stamping
Screen Printing
Attenuator
16. 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
Tag List
Flip-chip (Chip-to-Tag)
Stationary Reader
Reader Collision
17. When two waves (in phase) impose on each other and enhance the original signal and give rise to protrusions
Tag class
Power Source
Passive Backscatter (Capacitive Coupling)
Constructive Interference
18. Proximity systems (low range -mm) medium range (cm) and long range (m)
Read range
Tag Collision
Power Source
Microwave Frequency
19. Readability of a tag greatly depends on this and the angle at which the tag is presented to the reader
Power Source
Polarization
Agile Reader
Adaptive Binary Tree Anti-Collision
20. Continuous web - no adhesive
Dry Inlay
Linear Polarized Antenna
Creating A Tag
Duty Cycle
21. 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
Nulls(Voids)
PLC
Polarization
Circular Polarized Reader Antenna
22. Tags collide completely or not at all (Theoretically proven maximum utilization= 36.8%)
Decommissioning The Tag
Slotted ALOHA
Passive Backscatter (Capacitive Coupling)
Modulation Circuitry
23. Inductive coupling and passive backscatter (capacitive coupling)
Constructive Interference
Types of Tag Frequencies
Reader Antenna
Passive Communication Methods
24. The 3D energy field generated by the antenna (also called reading area)
Read range
Power/Attenuation
Pattern(Footprint)
Duty Cycle
25. Similar to guessing a number made of 1's and 0's by guessing each number one at a time
Tag
RFID Reader
Commissioning The Tag
Adaptive Binary Tree Anti-Collision
26. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.
Transmitter
Actuator
Passive Communication Methods
Slotted ALOHA
27. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)
Slotted ALOHA
Agile Reader
Memory
Integrated Circuit Chips
28. Standards = EPC global & ISO 18000 - Different Organizations
ALOHA
Strap-to-Tag
Pattern(Footprint)
Tag Standards
29. The time during which a reader can emit RF energy to read tags
Tag
Power Source
Annunciator
Duty Cycle
30. 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
Memory
Tag Anti-Collision Protocols
Circular Polarized Antenna
Serial Reader
31. Used to transmit AC power and the clock cycle via its antennas to the tags in its read zone
Constructive Interference
Transmitter
Microprocessor
RFID Printer
32. 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
Reader Antennas
Processor
Reader Antenna
RFID Reader
33. 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
Inductive Coupling
Interactive Mode
Multipath
PLC
34. 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
Low Frequency (LF)
Inductive Coupling
Passive Communication Methods
Linear Polarized Antenna
35. 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
Linear Polarized Reader Antenna
Actuator
RFID Reader
Constructive Interference
36. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves
Antenna Footprint
Persist Time
Nulls(Voids)
Polarization
37. Smart cards - smart label - etc.
Copper Etching
Pattern(Footprint)
Integrated Circuit Chips
Types of tags
38. Open image in meshed screens. Conductive ink "squeezed" thru open mesh.
Circular Polarized Reader Antenna
Reader Antennas
Duty Cycle
Screen Printing
39. Die-cut web adhesive - paper face
Types of tags
UHF
Sensor
Tag
40. More than one tag tries to respond to a reader at the same time.
Decommissioning The Tag
Circular Polarized Reader Antenna
Tag Collision
Pattern(Footprint)
41. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible
UHF
Passive Backscatter (Capacitive Coupling)
Tag Generations
Microwave Frequency
42. Brains of the RFID tag
Transmitter
Integrated Circuit Chips
Multipath
Tag class
43. Time for an associated tag to be read
Persist Time
Smart Label
Passive Backscatter (Capacitive Coupling)
Creating A Tag
44. Measurement of power for radiation of antenna used in Europe
Effective Radiated Power (ERP)
Screen Printing
Tag Antenna Construction
Passive Backscatter (Capacitive Coupling)
45. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation
Agile Reader
Constructive Interference
Persist Time
Copper Etching
46. changes signal received from reader to include data that will be transmitted back to the reader
ALOHA
Modulation Circuitry
Circular Polarized Antenna
RFID Reader
47. 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
RFID Printer
Pattern(Footprint)
Effective Radiated Power (ERP)
Screen Printing
48. Interprets the signal received from reader and controls memory storage and retrieval
Processor
Persist Time
Duty Cycle
Main Components of RFID Tag
49. IC Chip - Antenna/Inductor - Power Source
Coupling Element
Main Components of RFID Tag
Types of Tag Frequencies
Pattern(Footprint)
50. Inductive coupling and passive backscatter (capacitive coupling)
RFID SyCommunication methods
Interactive Mode
Stationary Reader
Tag Generations