This webinar will discuss: ----What is Acoustic Imaging? ----How does an Acoustic Imager compare to Conventional Ultrasonic Tools? ----Practical Considerations during use ----Application Examples

1. Fluke ii900 Sonic Industrial Imager
The first industrial acoustic camera featuring Fluke SoundSightTM Technology
Acoustic Imaging
Basics &
Applications
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2. What is acoustic sound imaging?
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3. What is acoustic sound imaging?
• A technique to create an image of the scene based on the sounds in the
scene
• The sound image is then overlaid onto a visible image 3Fluke Company confidential

4. Fluke Company confidential 4
Acoustic Imaging
vs. Conventional
Ultrasonic Tools

5. Acoustic Imaging vs Conventional Ultrasonic Tools

6. Acoustic Imaging vs Conventional Ultrasonic Tools

7. Practical
considerations
in use
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8. Practical considerations
• Reflection
• Diffraction (direction of sound)
• Noise - Frequency selection
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9. Practical considerations
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Does the sound spot look right?
(For example, is it on a reasonable
sound source or a hard floor?)
Reflections
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Does the it move when you move?
If yes, then it is a reflection.
A B C
D E F
Always move to confirm location of sound source

10. Practical considerations
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Confirming sound source
Reflections
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11. Echoes / Reflections

12. Practical considerations
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Always move to confirm location of sound source
Direction
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13. Practical considerations
• In the ii900 the signal or sound
of interest to us is very often in
the high frequency range.
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Noise
• A high pressure leak will have a wide
frequency spectrum. In a noisy factory there
is likely to be a lot of low frequency sounds.
We use the fact that a high pressure leak
has sound in the 30-35KHz band.

14. Practical considerations
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Noise
• Removing the interference
from other background noise.
• Ability to pick up the leak at
greater distances, as using
higher frequencies will
require being much closer
to the leak.
By filtering all other frequencies
we can benefit from:
Select an appropriate frequency band to maximize the
signal from the leak. Fluke Company confidential

15. Application
Examples
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16. Compressed Air Drop Downs

17. Air Compressor Connections

18. Air Regulators

19. Discharge Valve Connections

20. Production Line @ a Food & Beverage Facility

21. Boiler Tubes

22. Natural Gas Line @ a Steel Mill

23. Air Lines on Semi-Trucks

24. Nitrogen Leak

25. Ammonia Compressor Leak

26. Argon Tank Leak

27. Duct Leak @ a Coal Plant