Real Time Ultrasound Camera for Industrial Applications Bob Lasser Imperium, Inc. Beltsville, MD

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

Sampling of Customers

Lack of trained NDT personnel Lack of trained NDT personnel Prevalence towards portable devices Prevalence towards portable devices Strong interest in imaging Strong interest in imaging Time and cost pressures Time and cost pressures Industry Needs for New NDT Device

A-scan, B-scan, C-scan

A-scan to B-scan Defect

B-scan versus C-scan Defect

Ultrasound Camera Developed to make ultrasonic testing simple High resolution Real time C-scan Large areas can be covered quickly Video presentation Free of artifacts, distortion Most imaging between 500 KHz and 10 MHz Same applications as conventional UT, only higher resolution

Imperium’s Patented Architecture Applies optical imaging techniques to ultrasound Optical Sensor (CCD) Lens Ultrasonic Sensor (2) F1 Acoustic Lens Acoustic Flashlight Flash Note: CCD means Charged Coupled Device Optical Architecture: Ultrasonic Architecture:

C-scan: Pitch Catch Source Lens set Array Target

SoundTransmitter Array Video Lens Lens Target Subsurface fault Pulse Echo – 50/50 Beamsplitter Pulse echo image of quarter Acoustic beamsplitter Water Water

Imaging Array Piezoelectric Layer Pre-amp/ detection Signal Conditioning Multiplexing Pin Grid Array Package Ultrasound (piezoelectric) material Read out integrated circuit (ROIC) Wire bonds 14,400 pixels

Handheld C-scan Camera

Graphical User Interface

Acoustocam i600 Camera Introduced in lbs. versus 4 lbs. (i500) 80% less parts Robust design LCD removed Easily changed transducers

Internal Inserts – 5 MHz One inch

C-scan Imagery: Front of Quarter Single camera with array: 120 x 120 Distance to target: 4” Field of view: 1” Frequency: 7 MHz Wavelength: 0.20 mm Resolution: 1”/120 pixels = 0.008” or 0.21 mm

Grid Lines/Sizing

Time Corrected Gain TCG off TCG on Threshold Crossed

Range Gating for Depth: Pick the C-scan plane of interest

Petrochemical Implementation

Petrochemical Applications Corrosion mapping  Pipes, storage tanks Crack detection Need simple, inexpensive easy to use device Minimal training Portable Wireless monitoring

Scanning & Stitching Make large mosaic images from smaller ones Capture both C-scan and thickness Uses encoder attached to side of camera

Stitching Algorithm Individual Images Stitched Image Variable Weighting In Overlapped Area

Stitching Algorithm % Image 2 30% Image 1 70% Image 1 30% Image 2 50% Image 2 50% Image 1

Steel Imaging Ultrasound video: 3.5 MHz, 1” field of view Optical image

Mosaic Imaging : Creating Large Images From Smaller Ones

Corrosion Mapping C-scanOptical

Lack of trained NDI personnel Lack of trained NDI personnel Better quality control of NDI activities Better quality control of NDI activities Use by non-certified personnel Use by non-certified personnel SIMPLE, SIMPLE, SIMPLE SIMPLE, SIMPLE, SIMPLE Remotely monitored in real time Remotely monitored in real time Wireless Wireless Boeing approval spring 2011 Boeing approval spring 2011 Boeing Remote NDI Program

Remote Wireless NDI Program C-scan, A-scan, Audio, Video of inspection Audio, Control of camera

Remote NDI Demonstration

Global Inspection Product Development Award