Compensating for frequency change in flowmeters
Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding...
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| Format: | Patent |
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United States Patent and Trademark Office
2009
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| _version_ | 1797106193389322240 |
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| author | Tombs, M |
| author_facet | Tombs, M |
| author_sort | Tombs, M |
| collection | OXFORD |
| description | Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quality includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity. |
| first_indexed | 2024-03-07T06:58:16Z |
| format | Patent |
| id | oxford-uuid:fee08f7d-bf55-4552-8aa5-2725ef7a22a1 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:58:16Z |
| publishDate | 2009 |
| publisher | United States Patent and Trademark Office |
| record_format | dspace |
| spelling | oxford-uuid:fee08f7d-bf55-4552-8aa5-2725ef7a22a12022-03-27T13:39:59ZCompensating for frequency change in flowmetersPatenthttp://purl.org/coar/resource_type/c_15cduuid:fee08f7d-bf55-4552-8aa5-2725ef7a22a1Symplectic Elements at OxfordUnited States Patent and Trademark Office2009Tombs, MMotion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quality includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity. |
| spellingShingle | Tombs, M Compensating for frequency change in flowmeters |
| title | Compensating for frequency change in flowmeters |
| title_full | Compensating for frequency change in flowmeters |
| title_fullStr | Compensating for frequency change in flowmeters |
| title_full_unstemmed | Compensating for frequency change in flowmeters |
| title_short | Compensating for frequency change in flowmeters |
| title_sort | compensating for frequency change in flowmeters |
| work_keys_str_mv | AT tombsm compensatingforfrequencychangeinflowmeters |