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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Brodeur, P. Dion, J.-L. Garceau, J.J. Pelletier, G. Massicotte, D. |
| Copyright Year | 1988 |
| Description | Author affiliation: Group de Recherche en Electron. Ind., Quebec Univ., Trois-Rivieres, Que., Canada (Brodeur, P.; Dion, J.-L.; Garceau, J.J.; Pelletier, G.; Massicotte, D.) |
| Abstract | When subjected to a stationary ultrasonic field, particles of cylindrical shape diluted in water and shorter than one-fourth of the acoustic wavelength migrate to nodal planes of acoustic radiation pressure and reorient parallel to these planes. Based on this phenomenon, a method was developed to characterize the mean dimensions of softwood fiber samples. The aim is to develop an acoustooptical method suitable for online measurements of pulp fiber dimensions in a paper mill. As the resonator operating frequency is 72 kHz, fibers up to 5 mm in length can be measured. The time evolution of the fiber suspension during ultrasonic excitations is monitored with a collimated beam of light. Scattered light signals collected off-axis are functions of the mean fiber dimensions. Results are presented for fiber samples in the mean length range of 0.2 to 3 mm. |
| Starting Page | 489 |
| Ending Page | 492 |
| File Size | 305889 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ULTSYM.1988.49425 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1988-10-02 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Acoustic waves Ultrasonic variables measurement Shape Acoustic measurements Wavelength measurement Paper mills Resonant frequency Frequency measurement Length measurement Monitoring |
| Content Type | Text |
| Resource Type | Article |
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