PYL-2 Digital Display Stress Tester

Product Function:

The PYL-2 instrument is suitable for use by optical instrument factories, glass factories, glass product manufacturers, laboratories, and quality inspection institutions. It is used to measure the stress values of various glass products, optical glass, transparent plastic products, and other optical materials. This product has been strictly calibrated before leaving the factory and complies with relevant domestic and international standards, including: GB/T 4545 "Test Method for Internal Stress of Glass Bottles and Containers," GB/T 12415 "Test Method for Internal Stress of Pharmaceutical Glass Containers," GB/T 15726 "Test Method for Internal Stress of Glass Instruments," JC/T 655 "Test Method for Internal Stress of Quartz Glass Products," YBB00162003 "National Standard for Pharmaceutical Packaging Containers (Materials) Method - Internal Stress Determination," and ASTM C148 (Standard Test Methods for Polariscopic Examination of Glass Containers).

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Product Features:

This product has been specifically improved over traditional dial-type stress testers and digital stress testers, enhancing measurement accuracy and user experience. It features high measurement precision, no need for zero calibration, and energy efficiency:

High-Precision Measurement: This product uses a high-precision absolute angle encoder for measurement, with an accuracy better than 2nm.

Dual-Value LED Display: The display window uses a high-definition LED screen, simultaneously showing the measurement angle and optical path difference values, allowing users to intuitively obtain the required data for easy and readable measurements.

No Calibration Required for Dark Field: The dark field of the polarizing field has been precisely calibrated before leaving the factory. Due to the use of an absolute encoder, the dark field of the polarizing field is always at the zero-angle point, eliminating the need for user zero calibration and avoiding errors caused by manual dark field adjustment.

Energy Efficiency: This product uses a more energy-efficient and environmentally friendly LED light source, saving over 80% energy compared to traditional light sources.

Modular design, ergonomic operation, easy maintenance and repair.

Technical Parameters: