Patent ID: 9733171
Date: 2017-08-15
CPC Classifications: B01D,B07B,C12M,G01N

Claim:
1. A system for observing one or more particles in a fluid, the system comprising: a flow chamber, a portion of the flow chamber comprising a selectively transmissive membrane having a first side and a second side; a vibration generator disposed on the flow chamber; a flow path for the fluid being defined directly between a surface of the vibration generator and the first side of the selectively transmissive membrane, such that the second side of the selectively transmissive membrane remains free from contact with the fluid during operation; and a microscope configured to observe the one or more particles flowing in the flow path; the vibration generator being configured to produce an acoustic field in the flow path that forces particles in the flow path to the at least one pressure minima.