High Resolution, Low Cost Ultrasound Camera for In-service Composite NDI

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High Resolution, Low Cost Ultrasound
Camera for In-service Composite NDI Robert
Lasser, Marvin Lasser, Ron Westernik, John Kula,
David Rich Imperium, Inc.
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Imperium

• Formed in 1996
• Focused solely on ultrasound camera technology
• In development for 10 years, now selling
  commercially
• Implement for different embodiments of ultrasound
  camera

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Easy-to-Interpret Image Examples
Imperium
Conventional
Bone
Medical Image of Finger
Industrial Detection of Fault
Defect
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Industry Sectors

• Industrial
• Underwater
• Biometrics
• Medical

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Sampling of Customers
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Imperium Architecture
Apply optical imaging techniques to ultrasound
Optical Sensor
Lens
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Imperium Architecture
Ultrasound Sensor
Acoustic Flashlight
Acoustic Lens Set
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Through Transmission

Source Transducer
Target
Acoustic Lens
Imaging Array
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Imaging Array
Multiplexing
Piezoelectric Layer
Signal Conditioning
Pre-amp/ detection
I500 to I600
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Through Transmission of Composite Laminate
Three inches
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DAV TM Technology - Pulse Echo
Sound Transmitter
Water
Pulse echo image of quarter
Subsurface fault
Array
Video
Water
Electronics
Lens
Target
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Pulse Echo 50/50 Beamsplitter
Sound Transmitter
Pulse echo image of quarter
Array
Subsurface fault
Video
Water
Lens
Acoustic beamsplitter
Target
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Pulse Echo of Composite Laminate
One inch
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Pulse Echo of Quarter
One inch
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Camera Head Cutaway
Source transducer
Imaging Array
Target
LCD
Acoustic Lens
Beamsplitter
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B-scan versus C-scan
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Impact Damage in Composite Structure
One inch
Leading Edge Inspection
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Pulse Echo of Honeycomb Composite
One inch
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Range Gating
Gate 1
Gate 2
Gate 3
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Range Gating for Depth Pick the C-scan plane of
interest
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Integrated A-scan for Flaw Detector Functionality
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Presentation of Imagery and A-scan/ Match Gates
Set A-scan gates, automatically changes C-scan
gates
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Production Scanning Results ATK Thiokol
Hex nut and paper clip placed on surface
Graphite/epoxy laminate defect standard with
embedded Teflon wafers
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UT camera scan with stitching algorithm applied
- 0.3 scan increment
Conventional immersion scan - 2.25 MHz, 0.25
diameter transducer - 0.075 scan increment
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Gridlines/Sizing
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Future Developments Pulse Echo
Handheld portion goes from 4 lbs. to 2 lbs.
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Current Development Camcorder Handheld
Focus with finger
Strap
Grip
Handheld portion goes from 4 lbs. to under 2 lbs.
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New Control Unit
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Current Development Camcorder Handheld

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Time of flight color code different depths
Blue Level 1 Red Level 2 Yellow Level 3
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3
3
1
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Increments to be selected by user (e.g. 1 mm)
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Future Developments Through Transmission
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Boeing Remote NDI Program

• Lack of trained NDI personnel
• Use by non-certified personnel
• SIMPLE, SIMPLE, SIMPLE
• Remotely monitored in real time
• Wireless
• Program began in early 2007

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Remote Wireless NDI Program
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Boeing Remote NDI Program

• Successful demonstration Fall 2008
• Equipment at Boeings Everett, WA production
  facility
• Remotely monitored at Boeing GoldCare center in
  Seattle, WA
• Pilot program with airlines during 2009

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