Medium`s e.g. liquid, process variable e.g. viscosity, determining and monitoring device, has two diaphragms coupled with each other, where one diaphragm contacts with medium as oscillatable component part of oscillatable unit

摘要

The device has a stimulating- and/or receiving unit (2) activating a mechanically oscillatable unit (1) to mechanical oscillation, and receiving the mechanical oscillation of the oscillatable unit. The oscillatable unit has a diaphragm (6) as an oscillatable component part, where the diaphragm (6) and a diaphragm (5) are mechanically coupled with each other. The diaphragm (5) or the diaphragm (6) contacts with a medium as the oscillatable component part of the oscillatable unit.