NIR Sensors

NIR Sensors use Near Infrared energy to make direct measurements of specific constituents or components of products during processing. They operate on the principal that certain wavelengths of NIR energy are selectively absorbed by these constituents.

NDC Infrared Engineering manufactures a range of NIR Sensors for applications in Extruded Film manufacturing:

  • IG710 Backscatter Sensor - Coatweight and Moisture Measurements
  • FG710 & TFG Transmission Sensors - Measurements of Film Thickness or Grammage in Biax, Cast and Blown Films, Thin Biax and Cast Films and Individual Layer Thickness or Grammage  in Co-extrusions and for Barrier Layers

Each sensor configuration lends itself to particular products to offer a no-compromise measurement solution.

The advantage of NIR measurement technology is that it is completely safe, with extremely low energy levels in a safe area of the electromagnetic spectrum. This means that no special shielding is required nor any licensing or special safety training for operators.

NDC has developed NIR sensors so that they offer the highest measurement resolution of any NIR on-line sensor and each sensor makes one complete measurement every 7.5 milliseconds.

 

 

 

TFG710 Thin Film Sensor