Device and procedure to determine the density of a liquid

摘要

The device a buoyancy body (20) has a magnet (28) and a spring (30,40) engaging with the buoyancy body whose elastic deformation is a measure of the buoyancy of the buoyancy body. The spring is provided as a spiral leaf spring. The spring is produced with a section of a flat sheet. The spring is provided in single pass or double pass or more than two passes. An independent claim is also included for a method for determining the density of a liquid.