US 7,483,767 B2
Feedback mechanism for smart nozzles and nebulizers
Akbar Montaser, Potomac, Md. (US); Kaveh Jorabchi, Arlington, Va. (US); and Kaveh Kahen, Kleinburg (Canada)
Assigned to The George Washington University, Washington, D.C. (US)
Filed on Oct. 12, 2005, as Appl. No. 11/247,596.
Claims priority of provisional application 60/618261, filed on Oct. 14, 2004.
Prior Publication US 2007/0299561 A1, Dec. 27, 2007
Int. Cl. G05D 11/00 (2006.01)
U.S. Cl. 700—283 34 Claims
OG exemplary drawing
 
1. A feedback mechanism comprising:
an analytical system for performing an evaluation of at least one property of at least one of droplets, particles and aerosol, the analytical system comprising a laser light delivery system configured to deliver at least two laser pulses to the at least one of droplets, particles and aerosol; and
a feedback signal generator for generating a feedback signal based on the evaluation performed by the analytical system, the feedback signal facilitating optimization of at least one operational parameter of a source of the at least one of droplets, particles and aerosol;
wherein a scattering of the at least two laser pulses from the at least one of droplets, particles and aerosol is captured to provide two substantially instantaneous images thereof, and pointwise cross-correlation of corresponding images yields two-dimensional velocity map of a flow field of the at least one of droplets. particles and aerosol.