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Single Channel NIR (Near Infrared) LED Absorption Probe

Single Channel Near Infrared (NIR) LED Absorption Probe Schematic
1. Optical Path Length (OPL)
2. Sapphire Windows
3. Photo Diode
4. Day-Light Filter
5. LED Lamp

Sensor Models: ASD19-N    ASD25-N    ASD25-BT-N   
How it Works:

The precisely defined light from a hybrid LED lamp (5), passes through a sapphire window (2), and then through the process stream (1). The resulting light passes through a special day-light filter (4) and is detected by a photodiode (3).

The resulting photocurrent is precisely amplified, converted, and analyzed by the converter. The converter provides real time measurements and can send outputs to the process control system.