PSR 即Laboratory Portable SpectroReflectometer，獨特的采用積分球設計對大部分的材料表面進行半球光譜反射率快速測定，光譜范圍250 to 2800 nm 。主要根據ASTM E903 規范，對太陽吸收進行測定 .可同時提供用于真空環境測試版本 LPSR 300V.
LPSR 300 采用Windows XP 操作系統傻瓜式圖形操作界面。自動操作模式可以選擇波長起止范圍，步進間距。結果顯示為不同波長的反射率值，并自動計算太陽吸收。手動模式可選擇光源、探測器、狹縫寬度及增益。
LPSR 300 是一個獨立的測試系統，無需其它硬件。系統提供外接顯示器和鍵盤接口。內置硬盤可存儲幾千次樣品掃描測試結果，非常適合野外和實驗室環境使用。
LPSR300 同時系統集成了光學數據庫，可以和測試的結果進行比對。
LPSR是根據NASA需求設計研制，用于俄羅斯MIR空間站太空行走
Wavelength
250 to 2800 nm
Monochromatic Type
Prism， with selectable wavelength and slit width
Repeatability
-250 to 2500 nm- ± 1%
-2500 to 2800 nm- ± 2 %
Sample sizes
0.5 inches in diameter or larger
Measurement type
Spectral Total Hemispherical Reflectance
Spectral resolution with automatic slit control
-250 to 2500 nm - better than 5% of wavelength
-2500 to 2800 nm - better than 8% of wavelength
Full scan measurement time
Less than 2 minutes
Power required
115 VAC/60 Hz
Dimensions
-Measurement Head: 10 x 12 x 8 inches
-PC/Power Box: 9 x 16 x 20 inches
-Instrument Head Carrying Case: 10 x 11.5 x 16 inches
Weight
-Measurement Head: 15 Pounds
-PC/Power Box: 35 Pounds
Warranty
1 year parts and labor
*Note: terms reflectance， emittance and absorptance and terms reflectivity， emissivity and absorptivity are often used interchangeably. Spectroreflectometer， spectro-reflectometer and spectral reflectometer are also used interchangeably.(Alternative option to SOC， 410， 400T， directional reflectometer
