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Supplier: Trilion Quality Systems
Description: 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
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Supplier: ASTM International
Description: , nickel-chromium alloys, and stainless steels. 1.6 This guide describes the application of established NDT methods; namely, Acoustic Emission (AE, Section 7), Eddy Current Testing (ECT, Section 8), Laser Shearography (Section 9), Radiologic Testing (RT, Section 10), Thermographic
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Supplier: ASTM International
Description: , nickel-chromium alloys, and stainless steels. 1.6 This guide describes the application of established NDT methods; namely, Acoustic Emission (AE, Section 7), Eddy Current Testing (ECT, Section 8), Laser Shearography (Section 9), Radiologic Testing (RT, Section 10), Thermographic
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Supplier: ASTM International
Description: , nickel-chromium alloys, and stainless steels. 1.6 This guide describes the application of established NDT methods; namely, Acoustic Emission (AE, Section 7), Eddy Current Testing (ET, Section 8), Laser Shearography (Section 9), Radiographic Testing (RT, Section 10), Infrared
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Supplier: ASTM International
Description: , ET, Shearography Testing (ST), RT, Ultrasonic Testing (UT) and Visual Testing (VT); consult Guide E2981. 1.8 Due to difficulties associated with inspecting thin-walled metallic COPV liners through composite overwraps, and the availability of the NDE methods listed in 1.6 to inspect COPV
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Evaluating laser shearography for nondestructive testing at the Kennedy Space Center
Unfortunately, the shearography equipment could not peneirate the depths needed to detect corrosion.
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Shearography nondestructive evaluation techniques for aerospace structures
An example of commercial shearography equipment (Photo 1) uses an air cooled Argon laser and fiber optics to illuminate the test part, generally placed in a test chamber for prsure reduction stressing.
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http://www.ndt.net/article/insight/papers/insi.49.2.98.pdf
Through the Perspex window the shearography equipment ’s laser will be able to illuminate the surface.
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Aeronautical Applications of Non-destructive Testing
Shearography equipment manufacturers use different ways to present the results; some examples are presented in Figure 4.18.
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DIGITAL SHEAROGRAPHY FOR NONDESTRUCTIVE TESTING AND VIBRATION ANALYSIS
Fig. 4- Measuring device of the digital shearography equipped with a CCD camera, the shearing unit and a laser diode .
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Application of laser diodes in digital speckle pattern shearing interferometry
Measuring device of digital shearography equipped completely with a CCD camera, the shearing .
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The application of non-destructive techniques to the testing of a wind turbine blade
Simultaneously,acoustic sensors and laser shearography equipment were set up along the blade.
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Development and utilization of composite honeycomb and solid laminate reference standards for aircraft inspections.
Shearography equipment monitors the surface of a structure for any changes in the surface strain field.
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Nondestructive testing methods for 55-gallon, waste storage drums
If successful, field testing of the LTI shearography equipment on actual solid .
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Melt Infiltrated Ceramic Composites (Hipercomp) for Gas Turbine Engine Applications
Because of limitations of the shearography equipment at GE CRD only a portion of the shroud could be imaged at any given time.