Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field
Abstract
One or more sources of steady magnetic field are carefully located on the outside of a valve body. The constant magnetic field is transmitted into the valve body and valve internals. A magnetic field detector carefully located on the outside of the valve body detects the intensity of the magnetic field at its location. As the position of a valve internal part is changed, there is an alteration in the magnetic field in the valve, and a consequent change in the detected magnetic field. Changes in the detected signal provide an indication of the position and motion of the valve internals.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 868889
- Patent Number(s):
- 5236011
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- noninvasive; valve; monitor; constant; magnetic; dc; electromagnetic; field; sources; steady; carefully; located; outside; transmitted; internals; detector; detects; intensity; location; position; internal; changed; alteration; consequent; change; detected; changes; signal; provide; indication; motion; valve internals; electromagnetic field; magnetic field; detected signal; valve internal; constant magnetic; carefully located; noninvasive valve; valve monitor; field detector; signal provide; /137/324/
Citation Formats
Casada, Donald A, and Haynes, Howard D. Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field. United States: N. p., 1993.
Web.
Casada, Donald A, & Haynes, Howard D. Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field. United States.
Casada, Donald A, and Haynes, Howard D. Fri .
"Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field". United States. https://www.osti.gov/servlets/purl/868889.
@article{osti_868889,
title = {Noninvasive valve monitor using constant magnetic and/or DC electromagnetic field},
author = {Casada, Donald A and Haynes, Howard D},
abstractNote = {One or more sources of steady magnetic field are carefully located on the outside of a valve body. The constant magnetic field is transmitted into the valve body and valve internals. A magnetic field detector carefully located on the outside of the valve body detects the intensity of the magnetic field at its location. As the position of a valve internal part is changed, there is an alteration in the magnetic field in the valve, and a consequent change in the detected magnetic field. Changes in the detected signal provide an indication of the position and motion of the valve internals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}
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