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Using the Strainoptics Laser GASP Polarimeter to Measure Surface Stress in Heat-Treated Glass

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Using the Strainoptics Laser GASP Polarimeter to Measure Surface Stress in Heat-Treated Glass

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Presentation Transcript

    1. 1

    2. 2 Laser GASP Components

    3. 3 Operating Principles Light from a Laser Passes through a Polarizing Filter in the Input Head…

    4. 4 Becoming Polarized and Entering the First (Entrance) Prism.

    5. 5 Some of the Light that is Not Blocked or Scattered Enters the Glass and Propagates Parallel to the Surface.

    6. 6 At a Critical Angle, Some of the Light Emerges from the Glass and Can Be Seen Through the Eyepiece.

    7. 7 The GASP Measures on the Tin Side of Float Glass

    8. 8 How to Use the UV Lamp to Detect the Tin Side

    9. 9 Measuring on the Practice Sample

    10. 10 Measuring on the Practice Sample

    11. 11 Measuring on the Practice Sample

    12. 12 Measuring on the Practice Sample

    13. 13 Measuring on the Practice Sample

    14. 14 Measuring on the Practice Sample

    15. 15 Obtaining a Measurement on Your Glass

    16. 16 Obtaining a Measurement on Your Glass

    17. 17 Obtaining a Measurement on Your Glass

    18. 18 Obtaining a Measurement on Your Glass

    19. 19 Obtaining a Measurement on Your Glass

    20. 20 Where and How Many Points to Measure

    21. 21 Primary Mechanical Adjustments

    22. 22 Primary Mechanical Adjustments

    23. 23 Primary Mechanical Adjustments

    24. 24 Primary Mechanical Adjustments

    25. 25 Primary Mechanical Adjustments

    26. 26 Troubleshooting

    27. 27 SYMPTOM: Light source is on, but cannot obtain good image.

    28. 28 SYMPTOM: Instrument does not appear to be measure correctly.

    29. 29 SYMPTOM: Power switch is on, but laser is not.

    30. 30 Using the Cal-Plate to Verify Measurement Accuracy

    31. 31 Thank you for Choosing Strainoptics

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