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1. 发明申请

WO2007077038A8 A DENSITY AND VISCOSITY SENSOR 审中-公开
标题翻译：密度和粘度传感器
公开(公告)号：WO2007077038A8
公开(公告)日：2008-10-23
申请号：PCT/EP2006012652
申请日：2006-12-27
申请人： SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER TECHNOLOGY BV , SCHLUMBERGER HOLDINGS , SCHLUMBERGER CA LTD , PRAD RES & DEV NV , CHAUDOREILLE FRANCOIS , PERMUY ALFRED , DONZIER ERIC
发明人： CHAUDOREILLE FRANCOIS , PERMUY ALFRED , DONZIER ERIC
IPC分类号： G01N9/00 , G01N11/16
CPC分类号： G01N9/002 , G01N11/16
摘要： A density and viscosity sensor (1) for measuring density and viscosity of fluid F, the sensor (1) comprising: - a resonating element (3, 3A, 3B, 3C, 3D, 3E, 3F, 3G) arranged to be immersed in the fluid F, - an actuating/detecting element (4, 4A, 4B) coupled to the resonating element, - a connector (7) for coupling to the actuating/detecting element (4, 4A, 4B), - a housing (2) defining a chamber (8A) isolated from the fluid F, the housing (2) comprising an area of reduced thickness defining a membrane (9) separating the chamber (8A) from the fluid F, the membrane (9) having a thickness enabling transfer of mechanical vibration between the actuating/detecting element (4, 4A, 4B) and the resonating element (3, 3A, 3B, 3C, 3D, 3E, 3F, 3G), - the actuating/detecting element (4, 4A, 4B) is positioned within the chamber so as to be isolated from the fluid F and mechanically coupled to the membrane (9), - the resonating element (3, 3A, 3B, 3C, 3D, 3E, 3F, 3G) arranged to be immersed in the fluid F is mechanically coupled to the membrane (9), wherein the resonating element (3, 3A, 3B, 3C1 3D, 3E, 3F, 3G) has a shape defining a first resonance mode and a second resonance mode characterized by different resonant frequencies F 1 ,F 2 and different quality factors Q 1 ,Q 2 , the first resonance mode moving a volume of fluid, the second mode shearing a surrounding fluid.
摘要翻译： 1.一种用于测量流体F的密度和粘度的密度和粘度传感器（1），所述传感器（1）包括： - 谐振元件（3,3A，3B，3C，3D，3E，3F，3G）流体F， - 耦合到谐振元件的致动/检测元件（4,4A，4B）， - 用于联接到致动/检测元件（4,4A，4B）的连接器（7）， - 壳体）限定与流体F隔离的腔室（8A），壳体（2）包括减小厚度的区域，其限定将腔室（8A）与流体F分离的膜（9），膜（9）具有使得能够在所述致动/检测元件（4,4A，4B）和所述谐振元件（3,3A，3B，3C，3D，3E，3F，3G）之间传递机械振动，所述致动/检测元件（4,4A， 4B）位于腔室内以便与流体F隔离并且机械耦合到膜（9）， - 谐振元件（3,3A，3B，3C，3D，3E，3F，3G）被布置为沉浸在fl uid F机械耦合到膜（9），其中谐振元件（3,3A，3B，3C1 3D，3E，3F，3G）具有限定第一共振模式的形状和以不同谐振频率为特征的第二谐振模式 F 1，F 2和不同的质量因子Q 1，Q 2，第一共振模式移动体积的液体，第二模式剪切周围的流体。

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