Search AccessScience
Advanced Search
Turn Off Suggestions
Browse Topics
AccessScience > Search

Search Results: Ultrasonic aerosol concentration and positioning

The detection, identification, and separation of aerosols have potential applications in a wide variety of fields ranging from environmental science...


= Encyclopedia Article; = Research Update
Figure 1.Cylindrical-tube acoustic concentrator. (a) Breathing-mode oscillation of a piezoelectric tube used to drive the acoustic concentration field within the inner cavity of the tube. (b) Aerosol acoustically concentrated into three rings inside a piezoelectric tube. The tube is driven at 67 kHz, and the rings correspond approximately to the pressure nodes of the standing-wave field in the cylindrical cavity.
Figure 2.Acoustic collection and positioning. (a) Design of an acoustic cavity used for in-line aerosol sampling or particle collection. Aerosol particles are concentrated along the central axis of the device and are siphoned into a detector or collected for later analysis. (b) Particle counts taken from the central axis in this device when the acoustic field is ON or FF.
Figure 3.Noncylindrical cavity positioners. (a) A small insert breaking the circular symmetry forces the aerosol to agglomerate at three distinct positions within the cavity. (b) Cavity modification is made to create four focused aerosol streams flowing through the acoustic cavity.
  1. Agriculture, Forestry & Soils
  2. Anthropology & Archaeology
  3. Astronomy & Space Science
  4. Biological & Biomedical Science
  5. Chemistry
  1. Computing & Information Technology
  2. Earth Science
  3. Engineering & Materials
  4. Environmental Science
  1. Food Science & Technology
  2. General Science & Technology
  3. Mathematics
  4. Medicine
  5. Military Science
  1. Navigation
  2. Paleontology
  3. Physics
  4. Psychiatry & Psychology
  5. Veterinary Medicine
Browse Topics:

  1. A

  2. B

  3. C

  4. D

  5. E

  6. F

  7. G

  8. H

  9. I

  10. J

  11. K

  12. L

  13. M

  14. N

  15. O

  16. P

  17. Q

  18. R

  19. S

  20. T

  21. U

  22. V

  23. W

  24. X

  25. Y

  26. Z