公开(公告)号：EP2467687A4

公开(公告)日：2016-04-20

申请号：EP10814044

申请日：2010-06-10

申请人： ROSEMOUNT INC

发明人： BAUSCHKE DIRK WILLY ,  KAUCHAK LARA IVEY ,  PHAM DUYEN MONG-THI

IPC分类号： G01K1/14 ,  G01H3/04 ,  G01H3/06 ,  G01K1/08 ,  G01K7/00 ,  G01K13/02 ,  G01K15/00 ,  G01P15/00

CPC分类号： G01K1/08 ,  G01K13/02 ,  G01K15/00 ,  G01K15/007

摘要： An apparatus and a method monitor condition of a temperature measurement point in an industrial process system by sensing vibration frequency of a thermowell positioned in a process fluid flow passage and providing a diagnostic output based upon the vibration frequency sensed. The apparatus includes a temperature measurement point having a thermowell, a vibration sensor, a temperature sensor, and a transmitter. The vibration sensor is fixedly attached to the thermowell, and the temperature sensor is positioned inside a bore cavity of the thermowell. The transmitter is electrically connected to both the temperature sensor and the vibration sensor.