Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Reexamination Certificate
2006-09-29
2010-06-15
Tarcza, Thomas H (Department: 3662)
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
C356S028500
Reexamination Certificate
active
07738084
ABSTRACT:
A method and apparatus are provided for sensing the mass flow rate of a fluid flowing through a pipe. A light beam containing plural individual wavelengths is projected from one side of the pipe across the width of the pipe so as to pass through the fluid under test. Fiber optic couplers located at least two positions on the opposite side of the pipe are used to detect the light beam. A determination is then made of the relative strengths of the light beam for each wavelength at the at least two positions and based at least in part on these relative strengths, the mass flow rate of the fluid is determined.
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Gregory Don Allen
Korman Valentin
Pedersen Kevin W.
Wiley John T.
Hunt, Jr. Ross F.
McGroary James J.
Ratcliffe Luke D
Tarcza Thomas H
The United States of America as represented by the Administrator
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