The uncooled lead sulfide (PbS) sensor belongs to the lead - salt type infrared photoconductive sensor family. Its working principle is grounded in the photoconductive effect of semiconductor materials. Through this mechanism, it converts infrared radiation energy into electrical signals. The PbS sensor demonstrates strong absorption and response within the short - infrared (1.0 - 3.0μm) spectral bands. It is widely applied in infrared gas detection, as well as flame and high - temperature detection.
Application
Appropriate for flame monitoring in flammable and explosive areas.
Detection of sparks and flash points.
Temperature detection of high - temperature industrial furnaces.
Infrared spectrum analysis.
Features
Housed in a TO - 5 package.
Operates in an uncooled mode.
Features a fast response.
Exhibits a high detection rate.
Specifications
Parameter - Value
Model - RGF-L1212(H/A/B)
Photosensitive area - 2x2mm
Response time - 200µs
Dark resistance - 0.3 - 3.0MΩ
Response wavelength range - 1 - 3μm
Window type - Sapphire; Narrow Band Filters
Working temperature - - 30 to 60°C
Central wavelength - Sapphire: 1 - 6µm; Narrow Band Filters: 1.05µm, 2.7µm
Peak Responsivity - 4×10⁵ V/W
Peak Normalized Detection Rate - 1×10¹¹ cm·Hz½/W