Invention Grant
- Patent Title: Apparatus for determining and/or monitoring a process variable
- Patent Title (中): 用于确定和/或监视过程变量的装置
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Application No.: US13140174Application Date: 2009-12-11
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Publication No.: US08997556B2Publication Date: 2015-04-07
- Inventor: Martin Urban , Serguej Lopatin , Helmut Pfeiffer
- Applicant: Martin Urban , Serguej Lopatin , Helmut Pfeiffer
- Applicant Address: DE Maulburg
- Assignee: Endress + Hauser GmbH + Co. KG
- Current Assignee: Endress + Hauser GmbH + Co. KG
- Current Assignee Address: DE Maulburg
- Agency: Bacon & Thomas, PLLC
- Priority: DE102008054945 20081219
- International Application: PCT/EP2009/066908 WO 20091211
- International Announcement: WO2010/069866 WO 20100624
- Main IPC: G01N29/02
- IPC: G01N29/02 ; G01F23/296

Abstract:
An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one mechanically oscillatable unit, which comes in contact at least partially with the medium; at least one transducer unit, which excites the mechanically oscillatable unit to execute mechanical oscillations and which receives mechanical oscillations from the mechanically oscillatable unit; and at least one housing. At least one limiting element is provided. The limiting element is embodied and arranged in such a manner that the limiting element at least partially surrounds the mechanically oscillatable unit and the therefrom resulting reduction of volume surrounding the mechanically oscillatable unit increases the measuring sensitivity of the apparatus. Furthermore, the invention relates to a limiting element.
Public/Granted literature
- US20120103088A1 APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE Public/Granted day:2012-05-03
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