This Polariscope (Polarimeter) 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 produce 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 Tint Color + Senarmont
Retardation of full-wave plate : 560nm
Polarizer( bottom): 400mm*400mm
Analyzer ( top): diameter78mm
Optical retardation range : 0-280nm
Analyzer rotating angle : 0-180°
Measuring height ( adjustable ) : max 600mm
Overall size: W485×D584×H732mm
Voltage: 220VAC
Light source: White LED lamp
Weight: 20KG
Test Methods:
1.Sensitive Tint Color Method
The background color is aubergine.
After putting a sample on the sample plate, the part 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 the brightest in the viewing field . This part has the largest strain . Then rotate the dial until the brightest part turns to the darkest.
imported optical components to ensure premium performance
extra-large design for large-size sample testing
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 byresidual stress
