SCALP-05
Portable Scattered Light Polariscope

SCALP-05 is a compact scattered light polariscope for depthwise stress measurement in sheet glass. SCALP-05 contains diode laser, optics and camera. Recording of the data and stress calculation is done by PC, connected over USB. Handling of the polariscope is simple – clean the glass, apply a drop of immersion liquid, place SCALP onto the same spot and click the start button in software. After 3 seconds the stress profile is shown on the screen of PC.
Specifications
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Dimensions (L*W*H): 56*28*76 mm
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Weight: 177 g
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Communication interface: USB 2.0
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Power supply: USB bus
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Power consumption: 1.0 W
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Laser wavelength: 635 nm
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Laser output power: <5 mW
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Sensor resolution: 1280*1024 pixels
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Software requirements: Windows 10, .NET 4.6
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Measurable glass: Flat and curved glass (r > 300 mm)
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Measurable surface: Air and tin side
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Minimum measurable thickness: <1 mm
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Maximum measurable depth: 6 mm (on glass with any thickness)
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Measurement time: 1-6 seconds, default 3 seconds
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Minimum surface stress: 1 MPa
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Maximum stress: Not limited
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Precision: <1 MPa if surface stress < 4 MPa, <5% otherwise
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Operating conditions: +10 … +50 °C (with some thermal isolation down to -10 °C)
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Humidity: 0 – 90 % R.H. (non-condensing)
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Ambient light: Direct sunlight must be avoided
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Calibration: Calibrated by manufacturer
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Warranty: 2 years
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Limitations: some coatings (low-E, reflective, etc.), covered or painted surfaces, surfaces with texture