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BTG-8S SPECTRAL TRANSMITTANCE SYSTEM

Spectral Transmittance Measurement for Solar and Coated Glass

An integrated optical, spectral and software measurement system for transmittance analysis, colour evaluation and repeatable quality control of solar and coated glass.

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FZT-2 automated zebra angle measurement systemIntegrated Spectral Measurement System

QUALITY CONTROL VALUE

One System for Spectral, Solar and Colour Measurement

BTG-8S combines spectral transmittance, AM1.5 effective transmittance and colour measurement within a single measurement workflow, providing quantitative results for consistent glass quality evaluation.

  1. 01

    Multiple Measurements, One Platform

    Evaluate spectral transmittance, photovoltaic-weighted transmittance and colour characteristics within one integrated measurement system.

  2. 02

    Consistent Quality Evaluation

    Use defined measurement conditions and quantitative results to compare glass samples, batches and production output.

  3. 03

    Measurement Records for Review

    Record and review measurement results to support quality control, product comparison and technical evaluation.

Measurement Capabilities

Spectral, Photovoltaic and Colour Measurement in One System

Optical and Analytical Functions

Spectral TransmittanceNumerical results and full spectral curves across the configured wavelength range.
Photovoltaic TransmittanceAutomatic calculation of AM1.5 effective integral transmittance.
Visible-Light TransmittanceCalculates visible-light transmittance using D65 illumination distribution.
Colour MeasurementOutputs L*, a*, b* colour values and overall colour difference ΔE.
Automatic CalibrationBuilt-in automatic calibration with configurable intervals.
Continuous TestingDesigned to resist ambient-light interference during extended operation.

Selected Technical Specifications

Standard wavelength range380–1100 nm
Customisable wavelength range280–1200 nm
Measurement range0–100%
Measurement accuracy0.01%
Repeatability≤ 0.05%
Measurement speedUp to 150 ms / point
Sample table2500 × 1500 mm
Measurement geometryIntegrating sphere illumination and collimated receiving

Confirm final specifications and supplied configuration during technical review.

Measurement Workflow and Results

From Glass Sample to Quantitative Spectral Results

Light passes through the glass sample, the transmitted signal is collected and the BTG-8S software calculates, displays and records quantitative spectral transmittance results.

01Position Glass Sample
02Collect Transmitted-Light Signal
03Analyse Spectral Data
04Record Quantitative Results
BTG-8S real-time spectral transmittance software display
Live Measurement Display

Real-Time Spectral Transmittance

The software displays the live spectral curve together with calculated transmittance values, test parameters and system status.

BTG-8S multi-point measurement software display
Path Testing

Structured Multi-Point Evaluation

Path mode displays the programmed measurement points, spectral curves and quantitative results for each tested position.

BTG-8S historical measurement data and statistics
Recorded Results

Historical Data and Statistics

Stored measurements can be reviewed using result records, trend analysis and statistical distribution views.