Polarization tester for glass bottle stress — birefringence measurement with ±1º accuracy, 5-level stress grading, and built-in micro-printer for instant results.
| Detection Object | Glass bottles/Bottled beer/Wine/Whiskey |
| Test Items | stress |
| Testing Occasions | laboratory |
Internal stress in glass containers can lead to catastrophic failure during high-temperature sterilization, filling, and transport. Detecting these stress points is critical for maintaining structural integrity and safety in food, beverage, and pharmaceutical packaging.
The CanNeed-PLT-300 Polarization Tester is a precision instrument designed to identify and quantify stress defects in glass bottles. By utilizing the birefringence phenomenon, the PLT-300 calculates optical range differences to provide accurate, repeatable stress value and level measurements for both qualitative and quantitative quality control.
1) Direct digital display of stress values and levels for intuitive operation and high accuracy.
2) Integrated absolute angle encoder for superior measurement precision compared to standard encoders.
3) Built-in micro-printer for efficient, on-the-spot documentation of test results.
4) Versatile design accommodates a wide range of bottle heights and diameters.
5) Durable construction featuring 304 stainless steel and aluminum alloy for long-term reliability in industrial environments.
