Non-electrical parameter detecting sensor e.g. for pressure or pressure difference in system contg. water

摘要

The sensor contains a measurement system which causes a displacement of a magnet (8) whose position is determined by a magnetic field probe. Part of the vol. (2) enclosing the magnet is filled with a highly flexible setting material (10) so that the fluid in the vol. does not contact the magnet. The setting material can be a two-component silicon, embedding gel. Its phase boundary with the fluid is at least 5mm from the magnet.