Method of determining fluid level and interface in a closed vess

Details Method of determining fluid level and interface in a closed vess Method of determining fluid level and interface in a closed vess

1998-06-15

2000-08-15

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Fluent material level signalling

250258, 25033912, 73 36, 378 52, 600407, G01F 23288

Patent

active

061040339

ABSTRACT:
A process and apparatus for determining the levels in a vessel of two or more immiscible or partially-miscible components has been developed. The process begins with transmitting gamma rays, x-rays, microwaves, ultrasound waves, or sonar waves through the vessel by sequentially activating at least three stationary energy sources positioned adjacent to and in the vertical plane of the vessel. A set of intensities of the energy exiting the vessel corresponding to each energy source is measured using an array of stationary sensors where each set contains the intensity sensed by each sensor in the array of sensors. The sensors of the array are positioned in the vertical plane of the vessel and in alignment with the energy penetrating the vessel. The array of sensors contains a number of sensors that is at least one greater than the number of energy sources. The sets of intensities sensed by the array are recorded and an algorithm selected from the group consisting of partial least squares with latent variables, multiple linear regression, principal component regression, and neural networks is applied to the aggregate of the recorded sets to determine the levels of the components.

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