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GASP® Surface Polarimeter

The GASP® Polarimeter is also available with a video kit, and in a special CS version for use in measuring stress in curved glass.

Strainoptics’ GASP® Polarimeter is a portable instrument for measuring surface stress in heat-strengthened and tempered glass. It can also be used to confirm stress-relief in annealed glass and to validate furnace settings for manufacturers of safety glass.

The standard GASP model is for flat or slightly curved surfaces, while the GASP-CS version is designed to accommodate a curvature greater than 8 inches (200 mm). Both models may be ordered with either a laser or fiberoptic light source. The laser model features a rechargeable battery pack and offers the broadest range of measurement, up to 25,000 psi (180 MPa).

Strainoptics’ GASP polarimeters are:

  • Non-destructive
  • Easy to operate
  • Complies with all industry specifications
  • For in-plant or field use. Available for flat or curved surfaces

Options & Accessories

LCD Video GASP

Introducing the LCD Video GASP – the ideal solution for applications where a large volume of measurements are made daily. Perfect for using a digital camera to capture surface compression profiles for storage and analysis. This new model is battery- or ac-operated (specify when ordering) and replaces the standard eyepiece with a CCD video camera and a built-in 3-1/2″ LCD display to eliminate operator eye fatigue and parallax errors. Factory conversion from standard GASPs and video GASPs (separate CCTV monitor) is available on special order.

NEW! AUTO-GASP

Now you can automatically measure surface stress on heat-treated glass per ASTM C1048 and C1279 with Point-and-Click Speed and Convenience after setting up the GASP on the uncoated, tin side of your glass.

Includes Video GASP, licensed software, and cables.

  • Conversion kit available for existing Video GASP customers.
  • Works with any Windows XP or Windows 7 desktop or laptop computer with two available USB ports.
  • No monitor or data board required.
  • Stores images and data for later retrieval and/or analysis
  • Multiple licenses available

UV Lamps

for detecting the tin side of float glass:

  • UV-STI-26 Rechargeable Double-Tube Ultraviolet Lamp
  • UV-STI-1301 Mini Ultraviolet Lamp

CAL-PLATE Accessory

  • Glass reference standard with certified surface stress value
  • Enables verification of instrument accuracy
  • Ideal for operator training
  • Available for standard and high-sensitivity GASP wedges

Refractive Index Matching Fluid:

  • Available in 4 oz (120 cc), 16 oz (473 cc), or 1 gal (3785 cc) sizes
  • RI = 1.54 for use with GASP only – (For immersion cells, specify RI = 1.52)

GASP-STAND

The GASP-STAND accessory is a portable benchtop platform that safely holds any Strainoptics Laser GASP® surface polarimeter when out of its carry case and not in use. It protects the instrument’s prisms from accidental damage and comes with a refillable plastic dispenser bottle and holder for GASP index matching fluid.

GASP and Index Matching Fluid Not Included