发明名称 |
METHODS AND SYSTEMS FOR ESTIMATING DENSITY OF A MATERIAL IN A MIXING PROCESS |
摘要 |
<p>A density observer for estimating an actual density of a material with a proportional integral controller responsive to a density error determined by subtracting a feedback estimated density from a sensed density. A method of estimating a density of a material by determining a sensed density of the material, determining an estimated density of the material, determining a density error by subtracting the estimated density of the material from the sensed density of the material, and iteratively redetermining the estimated density based on the density error.</p> |
申请公布号 |
EP1882172(B1) |
申请公布日期 |
2013.09.18 |
申请号 |
EP20060726737 |
申请日期 |
2006.04.12 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
DYKSTRA, JASON, D.;BORGSTADT, JUSTIN, A. |
分类号 |
G01N9/00;B01F15/04;B28C7/04;G01D3/028;G05B13/02 |
主分类号 |
G01N9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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