FARO 3D SCANNER OPERATOR TRAINING
EXAM VERIFIED TEST QUESTIONS AND
ACCURATE ANSWERS (EASY -TO – FOLLOW
STUDY RESOURCES FOR GUARANTEED
RESULTS
Table of Contents
1. Basic Concepts and Terminology
2. Hardware Components and Setup
3. Software Operation
4. Scan Planning and Execution
5. Data Processing and Registration
6. Accuracy and Quality Control
7. Point Cloud Management
8. Applications and Use Cases
9. Troubleshooting and Maintenance
10.Safety and Best Practices
Basic Concepts and Terminology
1. What is 3D laser scanning?
Answer: 3D laser scanning is a non-contact, non-destructive technology that
digitally captures the shape of physical objects using laser light. It creates "point
clouds" of data from the surface of an object, which can then be used to
construct digital 3D models.
2. What is a point cloud?
Answer: A point cloud is a collection of data points in three-dimensional space,
each defined by X, Y, and Z coordinates. These points represent the external
surface of an object and form the basis for 3D modeling from scanned data.
,3. What does FARO stand for?
Answer: FARO originally stood for "FARnsworth & OLsen," named after the
company's founders, though today it operates simply as FARO Technologies,
Inc.
4. What is the difference between time-of-flight and phase-shift measurement
technology in FARO scanners?
Answer: Time-of-flight technology measures the time it takes for a laser pulse
to travel to an object and back to calculate distance, while phase-shift
technology measures the phase difference between emitted and received laser
signals. Phase-shift typically allows for faster scanning but with shorter range,
while time-of-flight offers longer range but typically slower acquisition.
5. What is the typical accuracy range of a FARO Focus laser scanner?
Answer: Typical accuracy ranges from ±1mm to ±3mm at distances up to 25
meters, depending on the specific model and scanning conditions.
6. Define "registration" in the context of 3D scanning.
Answer: Registration is the process of aligning multiple scans from different
scanner positions into a single, unified coordinate system to create a complete
3D model of the scanned environment.
7. What is a "reference sphere" in FARO scanning?
Answer: A reference sphere is a highly reflective, precisely manufactured
sphere of known diameter used as a target for aligning multiple scans during the
registration process.
8. What unit of measurement is typically used for distance in FARO scanning
software?
Answer: The software typically allows selection between metric (meters,
millimeters) and imperial (feet, inches) units, with millimeters being the most
common default for precision work.
9. What is "scan density" or "resolution"?
,Answer: Scan density or resolution refers to the spacing between points in the
point cloud. Higher resolution means points are closer together, producing more
detailed scans but requiring more time and storage space.
10. What does HDR mean in the context of FARO scanning?
Answer: HDR (High Dynamic Range) refers to a technique where multiple
images at different exposure levels are combined to create a single image with
improved detail in both dark and bright areas, enhancing the color information
applied to the point cloud.
11. What is "intensity" data in a point cloud?
Answer: Intensity data represents the strength of the laser signal returned to the
scanner from each measured point. It provides grayscale information about
surface reflectivity, which can help identify different materials and surface
characteristics.
12. What is the difference between indoor and outdoor scanning modes on
FARO scanners?
Answer: Indoor scanning mode is optimized for shorter ranges and controlled
lighting conditions, while outdoor scanning mode is optimized for longer ranges
and variable lighting conditions, including bright sunlight.
13. What is LIDAR?
Answer: LIDAR (Light Detection and Ranging) is a remote sensing method that
uses pulsed laser light to measure variable distances to objects. It's the
fundamental technology behind 3D laser scanning.
14. What is "noise" in a point cloud?
Answer: Noise refers to unwanted or erroneous points in the point cloud, caused
by factors such as dust particles, rain, reflective surfaces, or scanner limitations,
which don't represent actual physical surfaces.
15. What does the term "occlusion" mean in 3D scanning?
, Answer: Occlusion refers to areas that cannot be captured by the scanner
because they are blocked or hidden by other objects in the scan path, creating
gaps or shadows in the point cloud data.
16. What is the "range" of a FARO scanner?
Answer: The range refers to the maximum distance at which the scanner can
accurately measure points. For FARO Focus scanners, this typically ranges
from 70 meters to 350 meters depending on the model and environmental
conditions.
17. Define "structured light scanning."
Answer: Structured light scanning is a 3D scanning technique that projects a
pattern of light onto an object and analyzes the deformation of the pattern to
calculate surface geometry. While FARO primarily uses laser scanning, they
also have structured light scanner products.
18. What is a "colorized point cloud"?
Answer: A colorized point cloud is a point cloud where each point not only has
XYZ coordinates but also RGB color values, typically captured by an integrated
camera, providing visual texture to the geometric data.
19. What is a "scan cluster"?
Answer: A scan cluster is a group of individual scans that have been registered
together to form a larger, more complete 3D representation of an environment
or object.
20. What is a "clipping box" or "clipping plane"?
Answer: A clipping box or plane is a virtual boundary used in 3D visualization
software to temporarily hide parts of the point cloud, allowing users to view and
work with specific sections of the scan data.
21. What is "drift" in the context of 3D scanning projects?
Answer: Drift refers to the accumulation of small registration errors across
multiple connected scans, causing distortion in the overall model, especially in
large scanning projects.
EXAM VERIFIED TEST QUESTIONS AND
ACCURATE ANSWERS (EASY -TO – FOLLOW
STUDY RESOURCES FOR GUARANTEED
RESULTS
Table of Contents
1. Basic Concepts and Terminology
2. Hardware Components and Setup
3. Software Operation
4. Scan Planning and Execution
5. Data Processing and Registration
6. Accuracy and Quality Control
7. Point Cloud Management
8. Applications and Use Cases
9. Troubleshooting and Maintenance
10.Safety and Best Practices
Basic Concepts and Terminology
1. What is 3D laser scanning?
Answer: 3D laser scanning is a non-contact, non-destructive technology that
digitally captures the shape of physical objects using laser light. It creates "point
clouds" of data from the surface of an object, which can then be used to
construct digital 3D models.
2. What is a point cloud?
Answer: A point cloud is a collection of data points in three-dimensional space,
each defined by X, Y, and Z coordinates. These points represent the external
surface of an object and form the basis for 3D modeling from scanned data.
,3. What does FARO stand for?
Answer: FARO originally stood for "FARnsworth & OLsen," named after the
company's founders, though today it operates simply as FARO Technologies,
Inc.
4. What is the difference between time-of-flight and phase-shift measurement
technology in FARO scanners?
Answer: Time-of-flight technology measures the time it takes for a laser pulse
to travel to an object and back to calculate distance, while phase-shift
technology measures the phase difference between emitted and received laser
signals. Phase-shift typically allows for faster scanning but with shorter range,
while time-of-flight offers longer range but typically slower acquisition.
5. What is the typical accuracy range of a FARO Focus laser scanner?
Answer: Typical accuracy ranges from ±1mm to ±3mm at distances up to 25
meters, depending on the specific model and scanning conditions.
6. Define "registration" in the context of 3D scanning.
Answer: Registration is the process of aligning multiple scans from different
scanner positions into a single, unified coordinate system to create a complete
3D model of the scanned environment.
7. What is a "reference sphere" in FARO scanning?
Answer: A reference sphere is a highly reflective, precisely manufactured
sphere of known diameter used as a target for aligning multiple scans during the
registration process.
8. What unit of measurement is typically used for distance in FARO scanning
software?
Answer: The software typically allows selection between metric (meters,
millimeters) and imperial (feet, inches) units, with millimeters being the most
common default for precision work.
9. What is "scan density" or "resolution"?
,Answer: Scan density or resolution refers to the spacing between points in the
point cloud. Higher resolution means points are closer together, producing more
detailed scans but requiring more time and storage space.
10. What does HDR mean in the context of FARO scanning?
Answer: HDR (High Dynamic Range) refers to a technique where multiple
images at different exposure levels are combined to create a single image with
improved detail in both dark and bright areas, enhancing the color information
applied to the point cloud.
11. What is "intensity" data in a point cloud?
Answer: Intensity data represents the strength of the laser signal returned to the
scanner from each measured point. It provides grayscale information about
surface reflectivity, which can help identify different materials and surface
characteristics.
12. What is the difference between indoor and outdoor scanning modes on
FARO scanners?
Answer: Indoor scanning mode is optimized for shorter ranges and controlled
lighting conditions, while outdoor scanning mode is optimized for longer ranges
and variable lighting conditions, including bright sunlight.
13. What is LIDAR?
Answer: LIDAR (Light Detection and Ranging) is a remote sensing method that
uses pulsed laser light to measure variable distances to objects. It's the
fundamental technology behind 3D laser scanning.
14. What is "noise" in a point cloud?
Answer: Noise refers to unwanted or erroneous points in the point cloud, caused
by factors such as dust particles, rain, reflective surfaces, or scanner limitations,
which don't represent actual physical surfaces.
15. What does the term "occlusion" mean in 3D scanning?
, Answer: Occlusion refers to areas that cannot be captured by the scanner
because they are blocked or hidden by other objects in the scan path, creating
gaps or shadows in the point cloud data.
16. What is the "range" of a FARO scanner?
Answer: The range refers to the maximum distance at which the scanner can
accurately measure points. For FARO Focus scanners, this typically ranges
from 70 meters to 350 meters depending on the model and environmental
conditions.
17. Define "structured light scanning."
Answer: Structured light scanning is a 3D scanning technique that projects a
pattern of light onto an object and analyzes the deformation of the pattern to
calculate surface geometry. While FARO primarily uses laser scanning, they
also have structured light scanner products.
18. What is a "colorized point cloud"?
Answer: A colorized point cloud is a point cloud where each point not only has
XYZ coordinates but also RGB color values, typically captured by an integrated
camera, providing visual texture to the geometric data.
19. What is a "scan cluster"?
Answer: A scan cluster is a group of individual scans that have been registered
together to form a larger, more complete 3D representation of an environment
or object.
20. What is a "clipping box" or "clipping plane"?
Answer: A clipping box or plane is a virtual boundary used in 3D visualization
software to temporarily hide parts of the point cloud, allowing users to view and
work with specific sections of the scan data.
21. What is "drift" in the context of 3D scanning projects?
Answer: Drift refers to the accumulation of small registration errors across
multiple connected scans, causing distortion in the overall model, especially in
large scanning projects.
