Abstract: A disclosed system determines the elevation of an emulsion phase in a vessel. The system includes more than one source-detector pairs connected to the vessel and a computing device. Each of the source-detector pairs include a radioactive source and a radiometric detector, and are positioned at an elevation measured from the bottom of the vessel. The computing device is connected to the source-detector pairs, and is configured to identify the height of an emulsion phase using an upper boundary target density and a lower boundary target density. The height of the emulsion phase is identified by obtaining density readings from at least two of the source-detector pairs, calculating an upper boundary emulsion phase elevation and calculating a lower boundary emulsion phase elevation, each calculation using the density readings, and at least one of the upper boundary target density, and the lower boundary target density.

Abstract: A mechanically isolating mounting for use with a level sensing gauge (12) comprises damping material (22a, 22b) positioned exterior to the metal primary housing and between a primary housing of the gauge and a gauge mounting (13, 20, 20a), such that the damping material isolates the gauge mechanically from vibration and shock delivered through the gauge mounting. The gauge housing may comprise a mounting plate (13) or a metal enclosure (20, 20a) surrounding the primary housing and forming an outer housing.