Monitoring fluidized-bed drying of pharmaceutical granules using acoustic sensors

Authors

  • Derek Daniher Western Fluidization Group, Faculty of Engineering, University of Western Ontario, London, Ont. N6A 5B9, Canada
  • Lauren Briens Western Fluidization Group, Faculty of Engineering, University of Western Ontario, London, Ont. N6A 5B9, Canada

Keywords:

Drying, Fluidized beds, Granular materials, Granulation, Microphones, Pneumatics, Sensors, Acoustic Sensors, High-shear wet granulation, Moist granules, Pneumatic transport

Abstract

Fluidized bed drying of pharmaceutical granules using acoustic monitors is described. Acoustic monitoring is non-intrusive, cheap and requires no modification to existing fluidized bed drying equipment if a microphone is externally located. It is useful monitoring tool in high-shear wet granulation, pneumatic transport and rotary drying. The application of fluidized-bed drying monitoring is based on the fact that the sound produced by the collisions of dry granules is different from sound produced by the collision of moist granules.

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Published

2005-09-01

How to Cite

1.
Daniher D, Briens L. Monitoring fluidized-bed drying of pharmaceutical granules using acoustic sensors. Canadian Acoustics [Internet]. 2005 Sep. 1 [cited 2021 Oct. 18];33(3):18-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1724

Issue

Section

Proceedings of the Acoustics Week in Canada