Patent ID: 7444245
Filing Date: 2008-10-28
Classification: G01F,G01N

Abstract:
1. A field device for determining and/or monitoring at least one process variable of a medium in a container, comprising: at least one mechanically oscillatable unit connected with the container via a process connection, said mechanically oscillatable unit has at least three oscillatory members; at least one oscillatory member is connected, at an attachment region, with the process connection; and at least one driver/receiver unit, wherein: said driver/receiver unit excites said mechanically oscillatable unit to oscillate, and/or said driver/receiver unit detects the oscillations of said mechanically oscillatable unit; said three oscillatory members execute oscillations, which said driver/receiver unit produces, and/or detects; said three oscillatory members comprise a long rod of length (L), mass (M) and stiffness (EI), a first short rod of length (L said three oscillatory members are embodied and interconnected in such a manner, and said attachment region is selected in such a manner, that an approximately defined transmission of reaction forces and reaction torques occurs between said mechanically oscillatable unit and the process connection.