Patent ID: 7329039
Filing Date: 2008-02-12
Classification: B01F,B01J,C12M,C40B,G01N

Abstract:
1. A method for achieving a desired state of fluidization of a sample, comprising: providing a focused acoustic field to a sample, the focused acoustic field having a frequency of between about 100 kilohertz and about 100 megahertz and a focal zone having a diameter of less than about 2 centimeters; monitoring emissions of acoustic energy from the sample; determining the state of fluidization of the sample based, at least in part, on the emissions of acoustic energy from the sample; and providing a modified focused acoustic field to the sample, the modified focused acoustic field having acoustic wave variables selected, at least in part, based on the determined state of fluidization to achieve the desired state of fluidization of the sample, wherein the selected acoustic wave variables include a frequency of between about 100 kilohertz and about 100 megahertz and a focal zone having a diameter of less than about 2 centimeters.