Polariscope is an optical instrument designed to observe stress presence, stress distribution state , measure temper grade and optical retardation caused by residual stress inside transparent materials .
Objects of Polariscope
float glass plate, automotive glass
crystal , quartz , lens glass
glass container , glass vial , water glass
glass wafer , glass tube , laboratory glassware
resin plate , resin film , mold injection resin products
industrial new material glass , optical new material glass
Measuring principle
The internal stress of glass and plastic products has a birefringent characteristic. In other words, if there is stress inside of these types of products, light from he polarized lamp will be divided into different units, which produces optical interference phenomenon(ripple patterns) in turn.
From the observation of colored patterns, you can see stress distribution directly, then evaluate and improve the annealing process.
Application
Glass Inspection
Plastic Inspection
Crystal Inspection
Optical Fiber Inspection
Detecting method : Sensitive Color + Senarmont
Retardation of full-wave plate : 560nm
Viewing field: 200mm*200mm
Optical retardation range : 0-280nm
Measuring height ( adjustable ) : max 240mm
Overall size: W290mm x D384mm x H388mm
Voltage: 24VDC( with a AC/DC adaptor )
Light source: White fluorescent lamp
Weight: 11KG
Test Methods:
1. Sensitive Color Method
The background color is aubergine.
After putting a sample on the sample plate, the parts with green ,blue, orange and yellow stripes show the presence of stain. Whether it is compressive strain or tensile strain can be determined easily.
The part without strain has the same color as the background.
2.Senarmont Method
The viewing field is dark-brown .
After putting a sample on the sample plate, pay attention to the part that is relatively brighter in the viewing field . This part has relatively larger strain . Then rotate the dial until the relatively lighter part can’t get darker.
imported optical components to ensure premium performance
easy to operate
real time display of stress presence
measure temper grade and optical retardation with affordable costs
long serving life
Functions
Observe stress presence and stress distribution state
Measure glass temper grade
Measure optical retardation caused by residual stress
