Title:
THERMOWELL VIBRATION FREQUENCY DIAGNOSTIC
Document Type and Number:
WIPO Patent Application WO/2011/028220
Kind Code:
A3
Abstract:
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.
More Like This:
| JPH0552664 | TEMPERATURE SENSOR |
| JP2001349791 | CORE TEMPERATURE SENSOR |
Inventors:
BAUSCHKE DIRK WILLY (US)
KAUCHAK LARA IVEY (US)
PHAM DUYEN MONG-THI (US)
KAUCHAK LARA IVEY (US)
PHAM DUYEN MONG-THI (US)
Application Number:
PCT/US2010/001667
Publication Date:
April 28, 2011
Filing Date:
June 10, 2010
Export Citation:
Assignee:
ROSEMOUNT INC (US)
BAUSCHKE DIRK WILLY (US)
KAUCHAK LARA IVEY (US)
PHAM DUYEN MONG-THI (US)
BAUSCHKE DIRK WILLY (US)
KAUCHAK LARA IVEY (US)
PHAM DUYEN MONG-THI (US)
International Classes:
G01K1/14; G01H3/04; G01H3/06; G01K7/00; G01K13/02; G01P15/00
Foreign References:
| US20090211368A1 | 2009-08-27 | |||
| US20080141769A1 | 2008-06-19 | |||
| US6485175B1 | 2002-11-26 | |||
| US5048323A | 1991-09-17 |
Other References:
See also references of EP 2467687A4
Attorney, Agent or Firm:
NELSON, Stuart, A. et al. (P.A.312 South Third Stree, Minneapolis Minnesota, US)
Download PDF: