OPTICAL STRESS
MEASUREMENT
EQUIPMENT
Softeco Polariscope
Used for:
- visual inspection of stresses in glass
- Verification of stress pattern of glass
- Detection of irregularities caused by molds
- Detection of faults caused by temperature gradients
- Detection of faults due to quenching irregularities
Tempered glass products should be controlled as to stresses to ensure their conformity to standards. A strain viewer is a practical, non-destructive apparatus to control products as well as production conditions.
Principle of operation:
With the apparatus a stress pattern can be seen and stress- defects detected in colour. Faults or changes in production can be followed by comparing the stress pattern of a test- piece with a sample previously tested and known as a good one.
Features:
The procedure is non-destructive and can be used on flat or curved glass or plastic
Technical characteristics:
SOFTECO strain viewer consists of a light source with polarizing filter (polarizer), and another polarizing filter (analyzer) with a wave retarder.
No glass size limitation
Movable construction
Custom sizes from 10x10cm to 200x150cm

