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Shearograhpy Home
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Shearography
is a variation of laser technology ESPI (holography), specifically designed
for NDT applications. Shearography provides full-field, non-contact testing
for rapid wide-field inspection of composites, bonded structures and other
advanced materials. Shearography is an optical video strain gauge and an
appropriately applied stress is used to locate strain concentrations caused
by internal defects. As an example, a composite helicopter blade can be
inspected in production with vacuum excitation, while it can be rapidly
inspected in the field with thermal excitation from a heat source, such
as a heat gun or 
even
a hairdryer. Typically light vacuum, thermal, acoustic or mechanical loading
is used. This technology is ideal for components with complex geometries
and material compositions.
Common uses include:
- complex geometries, such as co-cured composites structures
- complex material composition, such as engine inlets and blades
- core structures (e.g.: honeycomb & foam)
- composite repair evaluation
- corrosion inspection
- production inspection
Contact us for more information about Shearography:
© 2007 Trilion Quality Systems - West
Cohshohocken, PA 
610-722-5100