In this presentation, we’ll show you how to perform nondestructive testing and remote visual inspection. Our solutions help improve the speed and precision of your inspections in a range of industries, including power generation, oil and gas, and petrochemical. About the Presenters: Liam Hanna, Product and Application Specialist for Remote Visual Inspection Florin Turcu, Product and Application Specialist for Nondestructive Testing For more information, visit: https://www.olympus-ims.com/en/resources/webinars/how-to-webinar-on-nondestructive-testing-and-remote-visual-inspection/

1. RVI | Liam G Hanna
Webinar | July 5, 2018
Save Time, Reduce
Cost: High-
Resolution
Inspection

2. Agenda
1 What is Remote Visual Inspection?
2 Advantages of Remote Visual Inspection
3 Application Overview—Turbine Inspection
4 Overcoming Challenges, Saving Time, and Reducing Cost

3. § By visually inspecting an item, it is easier to understand the whole situation, and a complex idea can
be conveyed with just a single still image
§ RVI makes it possible to absorb large amounts of data quickly
Remote Visual Inspection

4. 50% of us can identify
this
50% of us can identify
this
Probably only 10% can
gain anything from this
RVI Compared to Other Techniques

5. RVI Compared to Other Techniques
We can all draw a
conclusion from this…

6. Agenda
1 What is Remote Visual Inspection?
2 Advantages of Remote Visual Inspection
3 Application Overview—Turbine Inspection
4 Overcoming Challenges, Saving Time, and Reducing Cost

7. The Advantages of Remote Visual Inspection
§ Cost Reduction
ü See inside components without disassembling them
to reduce the number of human resources required
and to save time
§ Anytime, Anywhere, Minimal Training
ü No special (external) qualifications are required
ü Internal visual inspection
ü Simple and easy to operate
ü Easy to transport
ü Operable in small work areas
RVI is a visual inspection, and visual defects can be measured.
For subsurface/internal defects, other Olympus products may be used, including NDT and ANI.

8. Agenda
1 What is Remote Visual Inspection?
2 Advantages of Remote Visual Inspection
3 Application Overview—Turbine Inspection
4 Overcoming Challenges, Saving Time, and Reducing Cost

9. APPLICATION OVERVIEW
§ Temperatures in the hot section can reach over 1200 °C (2192 °F), which is past
the melting point of the materials used.
§ Due to high internal temperatures, a thermal barrier coating is used to help
protect the material from burning. In addition, thousands of cooling holes are
incorporated to enable a barrier or comparatively cool area to flow over the
surface of the blades.
§ RVI is used to inspect the integrity of the barrier coating and to make sure that
these holes are not blocked.
INSPECTION METHOD
§ Insert the scope through an opening in the turbine, such as an inlet
or outlet, or parts from which a fuel nozzle and a thermocouple are
detached. (Some turbines have borescope ports.)
§ Use remote visual inspection to find and determine any loss of
coating or blocked cooling holes.
§ Measure and map defects and coating loss for condition monitoring.
INSPECTION AREAS
§ Combustion chamber liner & burners | Nozzle guide vanes | Turbine blades
Application Highlight—Power Turbine “Hot Section”
Inspection
DEFECTS ENCOUNTERED
§ Blocked cooling holes | Loss of thermal barrier coating | Burnout
(blades that have burned/melted) |
INSPECTION ENVIRONMENT
1. Working space is often small, forcing the inspector to secure a
place to install the videoscope.
2. Since the turbine is large, the inspector needs to carry the
videoscope to do the inspection.

10. Agenda
1 What is Remote Visual Inspection?
2 Advantages of Remote Visual Inspection
3 Application Overview—Turbine Inspection
4 Overcoming Challenges, Saving Time, and Reducing Cost

11. Typical Defects
Hairline cracks Melted material Fuel nozzles
Combustion chamber Turbine blades Thermal barrier coating

12. See More
§ View targets and illuminate large cavities with
an ultra-bright illumination system.
§ Our laser diode illumination system is up to 4X
brighter than conventional videoscopes.
4x brighter than conventional videoscopes.

13. HD RVI™ Has Arrived
§ See clearly and in much more detail
§ New imaging sensor and advanced imaging
technology deliver outstanding image clarity, so you
can see tiny defects in stunning detail.
§ Digital zoom is useful
High image resolution.

14. See True-to-Life Colors
§ Designed for color-critical inspections, our
advanced image sensor and bright laser diode
illumination enable inspectors to view targets in
their natural colors
§ Good color even if the target object is far from
the scope tip
§ Increases the probability of detection
Larger color pallet, increased image resolution, and bright illumination
enable a true representation of real-life color on the videoscope’s screen.

15. Focus—Super Wide Measurement
§ Advanced processing power, increased resolution,
and newly designed optics enable a larger
measurement area
§ Super wide stereo measurement increases the
scope’s measurable area by 4X as compared to a
conventional model
§ Accurately measure larger defects from further away
Easily measure the distance of a crack in a combustion chamber or a defect
in the blade root.

16. Summary
Fast inspections
are highly
beneficial to plant
output
• Wide angle
measurements
• Easy-to-use software
• Bright illumination
• Adaptive articulation
• Increased probability
of detection
Helps minimize
downtime and
maximize plant
profitability

17. Thank you for
your attention
Olympus and IPLEX are registered trademarks, and HD RVI is a
trademark of Olympus Corporation.