Course No. 34
Level Measurement – Buoyancy Displacers
Concepts of buoyant force and its effect on an immersed object; principles of tubular buoyancy displacers; the effect of buoyant force on net weight at different immersions and different liquid densities; the relation of displacer net weight to liquid level, and calculations involving these variables; the principles of seals as applied to buoyancy displacers in pressurized vessels; concepts of liquid interface and the application of buoyancy displacers on its measurement; good installation practices for buoyancy displacers; isolating the buoyancy displacer from turbulent liquid; safety aspects of maintaining buoyancy displacers in the process; and considerations of temperature effect on buoyance displacers.
Prerequisites: Familiarity with sight and float instruments.