发明名称 |
Fluid density measurement device |
摘要 |
A device for determining a density of a fluid is described. The devices comprises a mechanical resonator, a driver/receiver unit arranged to provide an actuation to the mechanical resonator, sense a response of the mechanical resonator to the actuation, and provide an output signal representing the response; and an evaluation unit. The evaluation unit of the device is arranged to
i. determine an oscillation distribution from the output signal,
ii. determine a resonance frequency estimate from the oscillation distribution, and
iii. determine the density of the fluid based upon the resonance frequency estimate. The device according to the invention enables a more accurate determination of the fluid density for fluids comprising immiscible components (thus forming a heterogeneous mixture), like a water-oil emulsion, or a fluid with occluded gas. |
申请公布号 |
EP2246688(B1) |
申请公布日期 |
2011.06.08 |
申请号 |
EP20090159014 |
申请日期 |
2009.04.29 |
申请人 |
NEST INTERNATIONAL N.V.;DROBKOV, VLADIMIR;MELNIKOV, VLADIMIR;SHUSTOV, ANDREY |
发明人 |
DROBKOV, VLADIMIR;MELNIKOV, VLADIMIR;SHUSTOV, ANDREY |
分类号 |
G01N9/00 |
主分类号 |
G01N9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|