Combination microwave waveguide and pressure barrier
AssigneeTexaco Inc.
InventorsJoseph D. Stafford, Gregory J. Hatton, David A. Helms
Life of this patent
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Abstract
A waveguide and pressure barrier for use with devices for measuring fluid parameters of fluids passing in a pipe under high temperature and pressure conditions and utilizing microwave energy for making the measurements, the device including a pair of substantially identical members adapted to be mounted in spaced opposition on the pipe. Each member has an axial bore with a transverse bore for receiving a microwave antenna. The axial bore is substantially filled with a ceramic glass material providing the pressure and temperature barrier.
Claims5
A combination waveguide and pressure barrier for use with equipment for making a microwave measurement of fluids flowing in a pipe under high temperature and high pressure conditions comprising:
- a pair of like metal members of generally cylindrical configurations having a first closed end and a second opposite open end and adapted to be mounted in spaced diametrical opposition from each other on the pipe carrying the fluid to be measured;
- an axial bore through each of said members closed at one end thereof and forming a microwave frequency waveguide;
- a transverse-bore intercepting each said axial bore near the opposite open end from said first closed end thereof;
- coaxial cable connector means each adapted to be received in a respective one of said transverse bores and terminating with an antenna extending into said axial bore for coupling microwave frequency energy to said axial bore;
- and
- a glass ceramic material substantially filling said axial bore and forming a fluid tight high temperature and pressure seal with said member.
Dependencies are inferred from the claim text.