WYL-3 Glass Stress Meter

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WYL-3 Glass Stress Meter

Product ID：CLQTgxjl026

Price: Please inquire PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberWYL-3

Brand NameYIDIANWUGUANG

Payment TermsTT，PAYPAL，Alibaba.com Pay

WYL-3 Glass Stress Meter
Product Overview
The WYL-3 Glass Stress Meter is a professional optical instrument designed to measure internal stress (birefringence) in transparent materials. By utilizing polarized light technology, it accurately evaluates stress distribution caused by residual internal stress during manufacturing, helping manufacturers ensure product quality, mechanical strength, and safety.
Featuring both quantitative and qualitative measurement modes, the WYL-3 provides precise stress analysis for glass bottles, pharmaceutical glass containers, laboratory glassware, optical glass, and transparent plastic products. It is widely used in quality control laboratories, glass manufacturing plants, research institutes, and inspection organizations.
The instrument complies with major Chinese testing standards, including GB/T 4545-2007, GB/T 12415-2015, and GB/T 15726-2021, making it an ideal solution for routine inspection and laboratory testing.

Key Features
●Dual measurement modes supporting both quantitative and qualitative internal stress analysis.
●Polarized light optical system enables accurate observation of birefringence caused by residual stress.
●High measurement resolution of 0.2 nm for precise quantitative stress evaluation.
●Large observation aperture accommodates a wide variety of glass products and transparent materials.
●Suitable for multiple transparent materials, including optical glass, glass containers, laboratory glassware, and plastics.
●Stable halogen illumination system provides uniform lighting for reliable measurement results.
●Simple operation for both laboratory testing and production quality inspection.
●Designed to meet national testing standards for glass container stress measurement.

Working Principle
The WYL-3 Glass Stress Meter operates using the photoelastic (polarized light) principle.
When polarized light passes through a transparent material containing residual internal stress, birefringence occurs, producing optical retardation and characteristic interference colors. By analyzing these optical changes, the instrument determines the magnitude and distribution of internal stress.
The WYL-3 supports:
●Qualitative measurement, allowing rapid visual evaluation of stress distribution through interference colors.
●Quantitative measurement, providing accurate optical retardation values for precise stress analysis.
This non-destructive testing method is widely accepted for quality control of transparent materials.

Technical Specifications

Parameter	WYL-3
Measurement Method	Quantitative & Qualitative
Light Source	12V / 50W Halogen Lamp
Qualitative Measurement Range	≤560 nm (First-order interference color)
Quantitative Measurement Range	≤280 nm (First-order interference color)
Resolution	0.2 nm
Sample Height	250 mm
Full-Wave Plate Optical Retardation	560 nm
Analyzer Aperture	Ø150 mm
Glass Stage Aperture	Ø220 mm
Power Supply	220V ±22V, 50Hz ±1Hz
Power Consumption	30 W
Dimensions	570 × 510 × 950 mm
Net Weight	21 kg

Applications
Glass Bottle Manufacturing
Measure residual stress in beverage bottles, food containers, cosmetic bottles, and packaging glass to improve product safety and durability.
Pharmaceutical Glass Inspection
Evaluate internal stress in ampoules, vials, infusion bottles, and other pharmaceutical glass containers to ensure compliance with quality standards.
Laboratory Glassware Testing
Inspect beakers, flasks, test tubes, and laboratory instruments for manufacturing stress before use.
Optical Glass Manufacturing
Analyze birefringence and internal stress in optical lenses, prisms, filters, and precision optical components.
Transparent Plastic Inspection
Measure stress distribution in transparent plastic products used in electronics, medical devices, and industrial applications.
Quality Control Laboratories
Suitable for routine inspection, product development, manufacturing process optimization, and material research.

Why Choose the WYL-3 Glass Stress Meter?
The WYL-3 combines high-precision quantitative measurement with rapid qualitative inspection in one instrument, allowing manufacturers and laboratories to perform both detailed analysis and fast production-line quality control.
Compared with conventional qualitative strain viewers, the WYL-3 provides 0.2 nm resolution, enabling more accurate evaluation of residual stress and improved consistency in quality inspection. Its large observation area, stable optical system, and compliance with industry testing standards make it an excellent choice for glass manufacturers, pharmaceutical packaging companies, research laboratories, and inspection agencies.

WYL-3 vs Conventional Strain Viewers

Feature	WYL-3 Glass Stress Meter	Conventional Qualitative Strain Viewer
Measurement Mode	Quantitative & Qualitative	Qualitative Only
Measurement Resolution	0.2 nm	Not Available
Stress Evaluation	Numerical & Visual	Visual Only
Optical System	Polarized Light	Polarized Light
Glass Bottle Testing	Excellent	Good
Pharmaceutical Glass Inspection	Excellent	Good
Optical Glass Testing	Excellent	Limited
Standards Compliance	Supported	Varies

Frequently Asked Questions (FAQ)
1. What is the WYL-3 Glass Stress Meter used for?
The WYL-3 is used to measure internal stress (birefringence) in transparent materials such as glass bottles, pharmaceutical containers, optical glass, laboratory glassware, and transparent plastics.
2. What is the difference between quantitative and qualitative measurement?
Qualitative measurement visually evaluates stress distribution using interference colors, while quantitative measurement provides numerical optical retardation values for more accurate stress analysis.
3. Which industries commonly use the WYL-3?
The instrument is widely used in glass manufacturing, pharmaceutical packaging, laboratory glass production, optical component manufacturing, quality inspection laboratories, and research institutions.
4. Does the instrument comply with industry standards?
Yes. The WYL-3 is designed in accordance with GB/T 4545-2007, GB/T 12415-2015, and GB/T 15726-2021 for internal stress testing of glass products.
5. Can the WYL-3 test transparent plastic products?
Yes. Besides glass products, the instrument is suitable for measuring birefringence and internal stress in many transparent plastic materials.
6. What is the advantage of the WYL-3 over qualitative strain viewers?
Unlike qualitative-only instruments, the WYL-3 supports both visual inspection and high-precision quantitative measurement with a resolution of 0.2 nm, making it suitable for laboratory analysis as well as production quality control.

Product Category: Glass Testing Equipment | Glass Stress Meter | Polarized Strain Viewer | Birefringence Tester | Optical Testing Instrument

Frequently Asked Questions (FAQ)
1. What is the WYL-3 Glass Stress Meter used for?
The WYL-3 is used to measure internal stress (birefringence) in transparent materials such as glass bottles, pharmaceutical containers, optical glass, laboratory glassware, and transparent plastics.
2. What is the difference between quantitative and qualitative measurement?
Qualitative measurement visually evaluates stress distribution using interference colors, while quantitative measurement provides numerical optical retardation values for more accurate stress analysis.
3. Which industries commonly use the WYL-3?
The instrument is widely used in glass manufacturing, pharmaceutical packaging, laboratory glass production, optical component manufacturing, quality inspection laboratories, and research institutions.
4. Does the instrument comply with industry standards?
Yes. The WYL-3 is designed in accordance with GB/T 4545-2007, GB/T 12415-2015, and GB/T 15726-2021 for internal stress testing of glass products.
5. Can the WYL-3 test transparent plastic products?
Yes. Besides glass products, the instrument is suitable for measuring birefringence and internal stress in many transparent plastic materials.
6. What is the advantage of the WYL-3 over qualitative strain viewers?
Unlike qualitative-only instruments, the WYL-3 supports both visual inspection and high-precision quantitative measurement with a resolution of 0.2 nm, making it suitable for laboratory analysis as well as production quality control.