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

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


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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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