Analysis of powder phenomena inside a Fette 3090 feed frame using in-line NIR spectroscopy

- Differences in spectra baseline are affected by mass hold-up and paddle wheel speed.
- Powder wave behavior due to paddle movement.
- Differences on the NIR prediction due to changes in powder dynamics.
- NIR spectroscopy can be assessed the blend uniformity during the die filling process.
- NIR can be a development tool for in-line monitoring of powder during die filling.