1. Super Quality Services (SINCE 1986) SHEROGRAPY Presentation
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2. SQS Activities Overview
SQS is one of the India's major NDT service providers.
Branches
SQS MANIFA Services (Saudi Arabia)
PT. Super Quality Services (Indonesia)
Methods :-
Radiographic Testing(High Energy X-Ray)
LINAC 9 Mev (Linear Accelerator)
BETATRON 7.5 & 10 Mev
Ultrasonic Testing(UT)
Magnetic Particle Testing(MPT)
Liquid Penetration Testing(PT)
Positive Material Identification(PMI)
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3. SQS ADVANCE EQUIPMENTS
SHEROGRAPHY
DIC(Digital Image Correlation)
Eddy Current Testing(Nortec 600,MS 5800)
PAUT(Phased Array Ultrasonic Testing)
Visual testing(Boroscope)
(GE XL GO,OLYMPUS)
Computer Radiography(CR System)
Film Digitizer
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4. Introduction About SHEROGRAPHY
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5. … WHO needs sherography ? Super quality services| sqs ppt-Q 810

6. Sectors Which Need Sherography
Aviation Industry
Aerospace Industry
Wind Mills
R&D laboratories
Power plant operation and maintenance
Oil & Gas Industries
Automotive Industries
Tyre Manufacturers
Electrical & Electronic Industries
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Super quality services| sqs ppt-Q 810

7. Shearography - Capabilities
ON CONCORDE
Positioning and
sizing tool
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8. Shearography - IMAGES Impacted Monolithc (CFRP) Displacement field
US C-Scan
Impacted Monolithc
(CFRP)
Corrosion Detection
Aluminium Alloys
Displacement field
CF C-Scan
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9. Why choosing Q-810 Shearography NDT?
Repeatable measurements
Fast inspection
-> field-of-view of 20cm x 20cm
-> Up to 1m² inspected/minute
Detection Capabilities on Composite Materials
-> Disbonds, delaminations, wrinklings, etc
Tunable vacuum excitation
Option internal/external heat frame
Why choosing Q-810 Shearography NDT?
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Super quality services| sqs

10. The basic principles of the measurement method are interferometry and correlation techniques
Interferometry is determination of fractional relative phase difference between light waves traversing different paths. Phenomena which can be measured are those which influence the phase of the light beams. In practice this is e. g. surface deformation
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11. Non-destructive testing is the common use of shearography
Non-destructive testing is the common use of shearography. The defects become visible on measuring their inhomogeneous deformation gradients. Depending on the spatial distribution of deformation the defect or the structure itself can be characterised. The rotor measurements show a dis-bond (left), a crack (right) and a structural transition (centre). Compare fringe density and distribution.
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12. Impact defect detection in carbon fibre composites (CFRP) by dynamic excitation
The examples shows carbon fibre panel with  impacts prepared by Airbus, Bremen. Similar carbon composites are used for the new Airbus A380.
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13. Impact defect detection in carbon fibre composites (CFRP) by dynamic excitation
Defect visible at Hz Evaluated vibration mode
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14. What do we need to create and detect this micro-displacement?
Monochromatic light
Laser diodes
Loading
Heat
Vibration
Vacuum
Compression/bending force …
Shearing Sensor
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15. Detailed Shearography Principle
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16. From Fringe Maps to Phase Maps: 4-step Algorithm
Phase Map Loaded State
Phase Map Reference State
λ/4
λ/2
Resulting Phase map
3λ/4
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17. Conclusions Shearography - Capabilities Benefits: Contact less
Global method,
Good sensitivity,
Real time inspection,
Quicker than most of the NDI methods,
Working on all type of materials and structures,
Numerical acquisition give rise to efficient follow up,
New type of damage are now detectable without opening the structure…
The keys of the efficiency are in the selection of the loading and the implementation
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18. Contact Details:- Admin office SUPER QUALITY SERVICES No:95,SQS Building Palakarai Main Road Trichy Ph.No: , Mobile No: Website:-
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Super quality services| sqs ppt-Q 810