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Probe for measurement of velocity and density of vapor in vapor plume

United States Patent

5,610,704
March 11, 1997
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A probe which directs a light beam through a vapor plume in a first direction at a first angle ranging from greater than 0.degree. to less than 90.degree., reflecting the light beam back through the vapor plume at a 90.degree. angle, and then reflecting the light beam through the vapor plume a third time at a second angle equal to the first angle, using a series of mirrors to deflect the light beam while protecting the mirrors from the vapor plume with shields. The velocity, density, temperature and flow direction of the vapor plume may be determined by a comparison of the energy from a reference portion of the beam with the energy of the beam after it has passed through the vapor plume.
Berzins; Leon V. (Livermore, CA), Bratton; Bradford A. (Bethel Island, CA), Fuhrman; Paul W. (Livermore, CA)
The United States of America as represented by the United States (Washington, DC)
08/ 345,683
November 21, 1994
STATEMENT OF GOVERNMENT INTEREST The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for operation of Lawrence Livermore National Laboratory.