Microwave process seal

Details Microwave process seal Microwave process seal

1992-01-08

1993-11-16

Pascal, Robert J.

Wave transmission lines and networks

Long line elements and components

Waveguide elements and components

333 35, H01P 108

Patent

active

052627438

ABSTRACT:
A microwave process seal and method is provided for use, for example, in the detection of ullage level and flow in a vessel or conduit by detecting the presence of a solid or liquid material in proximity to a microwave detector. Particularly, a horn design is provided in conjunction with, the microwave process seal of the present invention which fits in the mouth of the horn. The microwave process seal is kept as thin as possible to meet pressure requirements. The surface of the seal is oriented at or near the Brewster angle. The Brewster angle is that angle for which there is total transmission across a dielectric boundary for energy that strikes the boundary with a linear polarization.

REFERENCES:
patent: 4371854 (1983-02-01), Cohn et al.
patent: 5051715 (1991-09-01), Agosti et al.

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