COMPACT POLARISED LIGHT
STRAIN VIEWER FOR PET PREFORMS (Ref S-402)
160mm x 160mm Field of View
|This Strain Viewer has been developed following requests for a small and low cost instrument for examining PET preforms.|
The advantages of our Strain Viewer for PET Preforms are as follows : -
1. Not only can the molecular birefringent flow lines (isochromatic pattern) be seen in colour but also the black isoclinic lines are visible when the preform axes are parallel to the polarising axis of the viewer. The isoclinic lines indicate the directions of the molecular orientational strains.
2. Crystallinity and other defects which are not easily seen in ordinary light can be readily identified.
3. The Strain Viewer is economical and can sit along side each injection moulding machine.
Light Source : Two compact cool white fluorescent lamps
Overall size :
Breadth : 200mm
Width : 200mm
Height : 245mm
Viewing field : 160mm x 160mm
Voltage : 220/240V : 50Hz or 110V : 60Hz
Sharples Stress Engineers Ltd