Method for non-contact particle manipulation and control of particle spacing along an axis

摘要

Method and system for uniformly spacing particles in a flowing system comprising suspending particles in an elongated fluid filled cavity; exposing said cavity to an axial acoustic standing wave field, wherein said axial acoustic standing wave field drives said particles to nodal and anti-nodal positions along the center axis of said cavity to result in uniformly spaced particles; and focusing said particles to the center axis of said cavity.

主权项

1. A system for uniformly spacing particles in an open, flowing system comprising:
a) an elongated cavity filled with a flowing fluid and further comprising suspended particles; b) a transducer acoustically and communicably linked to said cavity wherein said transducer vibrates to create an axial acoustic standing wave field, and wherein said axial acoustic standing wave field results in substantially uniformly spaced nodes and anti-nodes along the flow axis of said cavity; and wherein said axial acoustic standing wave field drives a single particle to a substantially uniformly spaced node or antinode along the center axis of said cavity.