Pet-Bottle Polarizing Stress Meters

Suitable for the packaging, automotive, electronics, and medical device industries, etc.

Based on the principle of photoelastic birefringence, this system uses polarized light to observe interference patterns formed by internal stresses in PET bottles and preforms

Transforms invisible internal stresses into visual interference patterns and color changes

Used for quality control and management of rough-machined transparent plastic products

LED light source with excellent stability and a long service life

Wide-field-of-view observation reduces the risk of missing local defects