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Objective zebra-angle measurement using CCD imaging and virtual moiré analysis
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The FZT-2 is a precision optical inspection system designed for manufacturers who require reliable, repeatable zebra-angle measurement in float glass production.
Conventional zebra-angle inspection relies on human visual judgement, resulting in inconsistent and subjective results.The FZT-2 eliminates this variability by applying CCD imaging and virtual moiré deformation analysis, ensuring objective, traceable, and repeatable zebra-angle measurements.
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Step 1 – Zebra Method A zebra stripe screen provides a reference pattern behind the glass sample as it is rotated.
Step 2 – CCD Image AcquisitionA high-resolution CCD camera captures stripe deformation caused by optical distortion in the glass.
Step 3 – Automatic Analysis Virtual moiré algorithms detect stripe deformation, identify the critical threshold, and calculate the zebra angle automatically.
Fully automated testing for operator-independent results
Zebra-angle measurement accuracy up to ±0.2°
Excellent repeatability for consistent quality control
Real-time zebra-stripe visualisation during measurement
Automatic detection and mapping of the five most prominent tendons
Supports a wide range of glass thicknesses and transmittance levels
Designed for long-term continuous operation in production environments
The FZT-2 supports zebra-angle measurement in accordance with international glass testing standards, including ISO, EN, JIS, and GB.
Float glass production quality control
Laboratory optical distortion testing
Incoming material inspection
Research and development applications
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High-accuracy spectral transmittance and optical performance analysis for photovoltaic and architectural glass
The BTG-8 is a high-accuracy optical testing system built for manufacturers and laboratories that require reliable evaluation of glass transmittance and optical quality.
With a stable measurement platform, integrated control system, and high-resolution optical components, the BTG-8 delivers precise, repeatable readings across a wide range of glass types and applications. Ideal for product development, quality control, and certification testing, the BTG-8 simplifies complex optical inspection tasks through a clean interface and automated analysis tools.
Step 1 – Controlled Illumination The BTG-8 uses a stable optical light source to illuminate the glass sample across the relevant spectral range.
Step 2 – Optical Detection Transmitted light is captured by high-resolution optical sensors, ensuring accurate spectral data acquisition.
Step 3 – Automated Analysis The integrated control system processes spectral data in real time, displaying transmittance curves and key optical parameters on the system interface.
Accurate spectral transmittance measurement for glass quality evaluation
Stable, vibration-controlled sample table for consistent readings
Integrated display and control unit for streamlined operation
Real-time measurement visualisation and data output
Suitable for laboratory, production, and certification environments
Designed for long-term stability and repeatable performance
The BTG-8 supports spectral transmittance measurement in accordance with relevant international glass and photovoltaic testing standards.
Photovoltaic glass transmittance testing
Architectural glass optical performance evaluation
Laboratory material characterisation
Quality control and certification testing
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