System and method for measuring fluid properties using magnetic field techniques via magnetic tracer
| DWPI Title: Method for determining property of fluid in vessel, involves measuring detected magnetic field from outside of vessel that is generated by magnetic particles in fluid, and determining property of fluid in vessel from detected magnetic field |
| Abstract: A method and apparatus for determining a property of a fluid in a vessel. The method uses magnetic tracer particles and an externally applied magnetic field which orients the particles. When the fluid moves, it changes the orientation of the tracer particles, thus changing the magnetic fields. These changes are detected by external magnetic field sensors. By using mathematical models, the property of the fluid in the vessel is determined from the detected magnetic field. In this manner, fluid vorticity, velocity, strain and stress may be estimated. |
| Use: Method for determining property such as vorticity, velocity, strain and stress of fluid in vessel used in material flow sensing system. Can also be used for measuring motion, rotation, vibration, temperature, and electrical-current property. |
| Advantage: The particles are seeded at a 0.1% by volume into the fluid to minimize disturbances to the flow. |
| Novelty: The method (400) involves measuring (402) a detected magnetic field from outside of the vessel. The detected magnetic field is generated by magnetic particles in the fluid. The property of the fluid is determined (404) in the vessel from the detected magnetic field. A vorticity or a velocity of flow of the fluid is determined in the vessel. A temperature of the fluid is determined in the vessel. A state of stress or strain of the fluid is determined in the vessel. The fluid and the vessel are optically opaque and magnetically transparent. The magnetic particles are placed in the fluid in the vessel. |
| Filed: 9/6/2018 |
| Application Number: US16124046A |
| Tech ID: SD 13162.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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