GFP™1600 (Grey Field Polariscope)

GFP™1600
Grey Field Polariscopes

Photoelastic Stress Analysis Systems

The GFP™1600 Photoelastic Stress Analysis (PSA) systems are some of the most flexible stress measurement instruments Stress Photonics offers. They are fully automated video based systems capable of capturing full-field stress maps in seconds. The instruments use standard interchangeable camera lenses, a light guide based illuminator, and is managed via the DeltaVision™ control and analysis software.

 

The systems can be easily configured, and paired with a specific illuminator, to make any of the basic glass stress measurements, including, edge stress, area stress, thermal stress, assembly stress, and laminar stress. The GFP1600 systems are true general purpose tools.

Full Featured Software - DeltaVision™

The GFP1600 Photoelastic Stress Analysis (PSA) System is managed with easy to use DeltaVision™ software—a versatile tool for capturing, presenting, analyzing and archiving photoelastic data.

DeltaVision™ Features

Among many other features, the DeltaVision provides:

  • Live Image Monitoring
  • Image Acquisition and Controls
  • Data Interrogation such as Line Plots
  • Reference Image Subtraction
  • Data Smoothing
  • Conversion to Stress Images
Stress Behind Heater Trace on Windshield

GFP1600 System Configurations

Not only is the GFP™1600 one of the most flexible stress measurement instruments Stress Photonics offers, when paired with specific illuminators and customizable framework, the resulting “configurations” become custom solutions suited to a broad range of applications. The most popular GFP1600 configurations are shown below.

GFP™1600 FPI

The GFP™1600 FPI (Flat Panel Illuminator) is ideal for large glass samples. Easily collect accurate and quantifiable stress data over an entire windshield, window, or other large piece of glass.

GFP™1600 TEST STAND

The GFP™1600 TEST STAND is designed to quickly measure stress in transparent samples; such as, mobile phone glass, for engineering development or quality control.

GFP™1600 REFLECT

The GFP™1600 REFLECT measures stress in painted glass; such as automotive glass black frit, and determines surface strains on any material with an applied coating.

GFP™1600 DESK / MICRO

As the name implies, the GFP™1600 DESK/MICRO is ideal for measuring stress on small details such as; flaws, edge grind, or contact points. Objectives of 2X, 5X, and 10X are available.
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GFP1600 Sample Stress Image

The example on the right is a Shear 45 stress image of an automotive backlite showing the temper patterns. The stress image was acquired with a GFP™1600 FPI.

A GFP1600 FPI is essentially a standard GFP1600 paired with a Flat Panel Illuminator (FPI). The GFP1600 FPI allows for full-field stress images of large glass samples. Users can quickly and easily collect accurate and quantifiable stress data over an entire windshield, window, or other large piece of glass, to solve problems in manufacturing, or to create a baseline of images for future reference.

Click here to view details of the GFP1600 FPI product.

Automotive Backlite - Image Acquired with a GFP™1600 FPI

GFP1600 System Applications

Below is a sampling of GFP™1600 images, including those acquired with the GFP1600 FPI, the GFP1600 TEST STAND, the GFP1600 REFLECT, and the GFP1600 DESK/MICRO.

Automotive Sunroof Shear Max

Shear Max image of an automotive sunroof. The image above was acquired with the GFP™1600 FPI (Flat Panel Illuminator), an ideal product for measuring stress in large glass samples.

Automotive Sunroof Shear 45

Shear 45 image of an automotive sunroof. The image above was acquired with the GFP™1600 FPI (Flat Panel Illuminator), and shows the temper patters in the automotive sunroof glass.

Automotive Backlite Shear Max

Shear Max image of an automotive backlite. The image above was acquired with the GFP™1600 FPI (Flat Panel Illuminator). The GFP1600 FPI is idea for measuring stress in large glass samples.

Automotive Backlite Shear 45

Shear 45 image of an automotive backlite. The image above was acquired with the GFP™1600 FPI (Flat Panel Illuminator). The GFP1600 FPI is idea for measuring stress in large glass samples.

Tempered Architectural Glass

The image above shows the edge stress in 9 mm tempered architectural glass. The image was acquired with the GFP™1600 FPI (Flat Panel Illuminator).

Windshield Air Current Anomalies

The above image of windshield area stress is an excellent example of the capabilities of the GFP™1600 FPI (Flat Panel Illuminator) to measure stress in large glass samples.

Windshield Air Current Anomalies

The above image of windshield area stress is an excellent example of the capabilities of the GFP™1600 FPI (Flat Panel Illuminator) to measure stress in large glass samples.

Closeup of Buss Bar / Heater Transition

Buss bar transitioning into heater elements. Residual stress only. Heaters are off. Single ply, no frit. Stress image acquired with the GFP™1600 FPI (Flat Panel Illuminator).

Closeup Crease Line & Defroster

Residual stress of busbar transitioning into heater elements. Heaters off. Crease line across image. Stress image acquired with the GFP™1600 FPI (Flat Panel Illuminator).

NASA Shuttle Orbital Windshield

HITF (High Velocity Impact Testing Facility) stress image of damage to a NASA orbiter windshield. HITF is a laboratory simulation of HVI (Hyper Velocity Impact) testing. View more HVI images.

NASA Shuttle Orbital Windshield

Image of a bruise on a space shuttle orbiter windshield. Bruise was caused by the HVI (Hyper Velocity Impact) of a particle hitting the windshield in space.View more HVI images.
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GFP1600 Specifications

SPECIFICATIONVALUE
Size76mm w × 105mm h × 60mm d
Range1000nm
Repeatability2%
Accuracy0–10nm ± 0.5nm
10–100nm ± 5nm
100nm ± 5%
Frame Rate10 f/s
ResolutionPixel Resolution: 2750 × 1080
LensesAny C-mount Lens
InterfaceGigE
Specifications are general. Definitive specifications are determined by application and will be reflected in final quote.

Need help? Email our expert support team via our contact form or call us at +1 (608)224-1230

Need help? Email our support
team via our contact form
or call us at +1 (608)224-1230

Glass Photonics was founded by Stress Photonics Inc in order to better serve the glass industry.
All products are manufactured by Stress Photonics.

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