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NDT.net Issue - 2007-12 - NEWS

PE-900 Photo-Elastic Visualisation System - SEE SOUND

Materials Research Institute99, Waterloo, Canada
Ultrasonic Testing (UT), photo-elastic, visualization
NDT.net Journal
Issue: 2007-12
The PE-900 introduced by Materials Research Institute allows you to see sound. Equipped with a custom strobe light, zoom-macro video lens and high resolution video camera, the PE-900 allows imaging of ultrasonic pulses in glass and other clear media. Users have the option to use the high energy pulser provided or connect to other ultrasonic instruments (including phased array) that have TTL triggers.
The system comes complete with laptop computer and software to capture still and video images. Also included is software to perform beam analysis using image intensity mapping. Two glass samples are provided with a probe and selection of wedges so that the system can be assembled and running within a matter of minutes.

Ideal for training, research and technique development

PES-900-Component Layout
1. Light source, 2. Polariser, 3. Collimating lens, 4. Specimen mount, 5.Glass sample, 6. Probe holder tube with adjustable position and spring-loading, 7. Quarter-wave plate, 8. Analyser, 9. zoom-macro lens, 10. Camera

Miniature portable photoelastic visualisation system complete with

  1. Laptop computer fully loaded with necessary software and hardware
  2. Controller (pulser and delay circuitry with option for internal or external trigger),
  3. High speed high intensity strobe-light source
  4. High-resolution CMOS camera,
  5. Zoom-macro lens
  6. Imaging samples, (2 glass samples, one with targets one radiused)
  7. 900mm Mounting Base with adjustable spring-loaded hold-down
  8. All necessary lenses and lens holders and rotators (All optical components and base are fully removable and can be reconfigured for other light-path and specimen dimensions)
  9. Ultrasonic probe and wedges (1 probe and 3 angle wedges are supplied)
  10. Image capture software
  11. Image analysis software for quantification of imaged pulses
  12. Water-tight packing/shipping case

The specimen mounting area is located along the light path with a nominal 75mm diameter illumination area that can be imaged using a macro focusing lens mounted on the CMOS camera.

Software is provided for viewing and analysing the projected images on a supplied laptop computer. Capture and save both still and video images.

Image Intensity Analysis software from Eclipse Scientific Products

Perform beam analysis for

  • refracted angle
  • near zone assessment
  • focal distance
  • focal spot size
  • wavelength
  • divergence


  • Reflection
  • Refraction
  • Frequency dispersion effects
  • Flaw tip diffraction
  • Mode conversion
  • Phased array wavelets and motion

Future extra features

  • Immersion setup (with tank and search tube)
  • Selection of glass-blocks including surface-notches, side drilled holes and TOFD-style sub-surface square notch targets

Materials Research Institute
432 Country Squire Road,
Waterloo, Ontario
Canada N2J 4G8
Tel (519) 886-05071

Materials Research Institute

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