ACOUSTOPHORETIC DEVICE WITH PIEZOELECTRIC TRANSDUCER ARRAY

摘要

An apparatus for separating particles from a fluid stream includes a flow chamber that has at least one inlet and at least one outlet. At least one ultrasonic transducer is located on a wall of the flow chamber. The transducer includes a piezoelectric array with at least two piezoelectric elements. The piezoelectric array includes a piezoelectric material to create a multi-dimensional acoustic standing wave in the flow chamber. A reflector is located on the wall on the opposite side of the flow chamber from the at least one ultrasonic transducer.

主权项

1. An apparatus for separating a second fluid or a particulate from a host fluid, comprising:
a flow chamber that includes at least one inlet and at least one outlet; and at least one ultrasonic transducer coupled to the flow chamber, the transducer including a piezoelectric array formed from a plurality of piezoelectric elements, and the piezoelectric array being configured to create at least one multi-dimensional acoustic standing wave in the flow chamber.