Ultrasonic Imaging System COE200508

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????????????????????????????????????Ultrasonic
Imaging System COE2005-08

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• Non Destructive Test Ultrasonic Pulse Echo
• What is ultrasonic?
• Frequency more than 20 kHz
• Travels efficiently through most liquids and
  common
• engineering materials
• Reflection from an obstacle

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• Ultrasonic thickness gauging
• Ultrasonic flaw detection applications utilize
  frequencies between 500 kHz and 10 MHz

Thickness gauging and flaw reflection
Example equipment for testing
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System overview

• Probe positioning module
• Ultrasonic module
• GUI CG module

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System overview
Processing and generating output..
Camera
(x,y)
s(x,y)
Ultrasonic probe
Probe coordinate is (3,1)
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• Displaying Output

• Integrate and analyse data

The green area is thicker than the blue one
Same point
Thickness scale color bar
Output prototype
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• Hardware
• Data Acquisition Card
• Emitting
• Receiving
• Ultrasonic probe
• Camera

• Software
• Platform Windows XP
• Microsoft VC .NET
• LABVIEW 7.1
• DirectX SDK 9.0

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• Benson Carlin, Ultrasonics (Second Edition), 1960
• http//www.panametrics-ndt.com/ndt/ndt_technology/
  ultrasonic_flaw_detection.html
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