Method and apparatus for level gauging using radar in floating r

Details Method and apparatus for level gauging using radar in floating r Method and apparatus for level gauging using radar in floating r

1995-02-13

1997-03-25

Regan, Maura K.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

343772, 342142, 73290V, G01R 2702, G01S 1308

Patent

active

056148313

ABSTRACT:
A device for gauging the level of a fluid in a container includes a floating roof, a transmitter for feeding a first microwave signal downwards in the direction of a fluid surface of the fluid, and a receiver for receiving a reflected microwave signal. The device includes a collector located above and in the vicinity of the floating roof, collecting the first microwave signal producing a collected microwave signal. The device also includes a vertical wave guide passing through the floating roof. The vertical wave guide guides the collected microwave signal to the fluid surface, and receives a reflected microwave signal reflected from the fluid surface. The vertical wave guide then guides the reflected microwave signal back to the collector and further to the receiver. It is a special feature to permit accurate measurement of the level of the fluid surface without having direct access to the surface.

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patent: 5438867 (1995-08-01), Van Der Pol

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