Testing system for visible light transmittance and solar heat gain coefficient of architectural glass
PIC-(Testing system for visible light transmittance and solar heat gain coefficient of architectural glass)
Applicable standards:
GB/T2680-2021 "Measurement of visible light transmittance, direct sunlight transmittance, total solar transmittance, ultraviolet transmittance, and related window glass parameters of building glass";
ISO9050-1990 "Measurement of visible light transmittance, direct sunlight transmittance, total solar transmittance, ultraviolet transmittance, and related window glass parameters of building glass";
ISO9050-2003 "Determination of Light Transmittance, Direct Sunlight Transmittance, Total Solar Transmittance, Ultraviolet Transmittance, and Related Gloss Coefficient of Building Glass";
JGJ/T151-2008 "Code for Thermal Calculation of Building Doors, Windows, Glass Curtain Walls";
Technical parameters
Photometric items: indicators
Detection method: Optical measurement method
Optical wavelength range: 190-2800nm
Wavelength accuracy: ± 0.3nm (automatic calibration upon startup)
Wavelength repeatability: ≤ 0.1nm
Automatic spectral bandwidth: 1, 2, 5, 10, 50nm
Stray light:<0.01% (220nm, Nal; 340nm, NaNO2)
Light source conversion: automatic switching (can be set arbitrarily within the range of 380nm~1000nm~2800nm wavelength band)
Optical testing attachment: Mirror testing device
Photometric range: -4.0~4.0A
Photometric accuracy: ± 0.002A (0-0.5A) , ± 0.004A (0.5-1A)
Photometric repeatability: ± 0.3% T (0-100% T), 0.001A (0-0.5A), 0.002A (0.5-1A)
Photometric baseline straightness:± 0.001A (190-1000nm), ± 0.005A (1000-2800nm)
Photometric baseline drift: 0.0004A/h (500nm, 0A, after preheating), Noise: ± 0.0004A
Test indicators:
UV light transmittance and reflectance;
UV light transmittance and reflectance;
Visible light transmittance and reflectance;
Direct transmittance and reflectance of sunlight;
Direct solar absorption ratio and total solar transmittance;
Solar heat gain coefficient and shading coefficient;
Light to heat ratio, total solar infrared thermal energy emission ratio;
Main features
1. Powerful instrument performance: Extremely excellent optical system, advanced electronic system, high-level mechanical system, ensuring ultra-low stray light of 0.010% T, high-precision PID temperature control, and 24 bit voltage digital sampling.
2. Stable and reliable quality: The dual beam dynamic feedback proportional recording metering system ensures baseline stability. Key components such as deuterium lamps and photomultiplier tubes are all imported, ensuring the stability, reliability, and long service life of the instrument.
3. Accurate measurement: Using imported high-quality holographic gratings to further reduce the stray light of the instrument and make the analysis more accurate.
4. Easy and efficient human-machine dialogue: The JP-AFL25 series intelligent building glass designed based on the Windows environment can operate the light transmittance and shading coefficient hemispherical emissivity software in Chinese, providing rich instrument control and operation functions. It is simple and easy to use, flexible and efficient, and can easily meet the analysis needs of users.
5. Excellent scalability: The reflective optical integrating sphere can be equipped with dedicated accessories and a dedicated reflective device for building glass shading coefficient, greatly expanding the application range of the instrument.
6. Simple and convenient equipment maintenance: The unique socket type tungsten lamp and deuterium lamp eliminate optical debugging when changing the lamp, making equipment instrument debugging and maintenance easier and more convenient. The vacuum press performs oil detection.
7. Logging function: Automatically record user actions; The log files are saved in a more reliable database format; Administrators can classify and view logs for other processing.
8. Adopting a comprehensive optical and hemispherical emission integrated testing system, it has high cost-effectiveness and is easy to test.
9. Quality control function: can monitor measurement data according to user settings; The data system that exceeds the control range will display prompt messages, color mark or automatically remeasure.
10. Report output function: It can achieve the function of sharing data with other systems; Measurement results can be saved in Microsoft Word format, Microsoft Excel format, or text file format; Personalized report formats can be set; You can preview the printing effect of the result report in advance.
