Measuring unit for specific gravity - measures upthrust on floating body to avoid wave and surface tension effects

摘要

For measurement of the specific gravity of a liquid, a defined floating body is used and the upthrust acting on it is measured, through action on a diaphragm or a spring in a measuring path. The upthrust is thus converted into a mechanical indication or is electronically transformed to produce an indication, allowing incorporation in automatic control circuits. ADVANTAGE - Interfering effects of wave movement or surface tension are avoided.