公开(公告)号：EP1184658A3

公开(公告)日：2002-09-18

申请号：EP01306984.4

申请日：2001-08-17

申请人： SG Measurement Limited

发明人： Rickward, Roger David ,  Argent, David Charles James

IPC分类号： G01N9/00

CPC分类号： G01N9/20

摘要： An apparatus arranged to measure specific gravity / density of a quantity of fluid (12), comprising a displacement means (2) arranged to be suspended into the fluid (12) such that it is completely submerged and displaces a portion of the fluid (12), a weight measuring means (4) arranged to measure the resultant force exerted by the displacement means (2) and a processing means arranged to process the resultant force and produce a reading (13) of the specific gravity / density for the fluid (12). The apparatus allows temperature compensation to be performed such that a reading can be made at a first temperature and the specific gravity / density calculated at a second different temperature.

公开(公告)号：EP0605298B1

公开(公告)日：1999-07-21

申请号：EP93403152.7

申请日：1993-12-23

申请人： SEXTANT Avionique

发明人： Choisnet, Joel

IPC分类号： G01N9/20 ,  G01N9/18

CPC分类号： G01N9/18 ,  G01N9/20

公开(公告)号：EP0493628A1

公开(公告)日：1992-07-08

申请号：EP90125812.9

申请日：1990-12-29

申请人： I.V.E.L. S.R.L.

发明人： Breseghello, Pietro Romano

IPC分类号： G01N9/20 ,  H01M10/48

CPC分类号： H01M10/484 ,  G01N9/20

摘要： Der Dichtegeber mißt kontinuierlich die Dichte des Elektrolyten der Batterie und wandelt den gemessenen Wert in ein elektrisches Signal um. Zu diesem Zweck ist ein Meßsystem vorgesehen, das mit dem mit der Dichte des Elektrolyten veränderlichen Schwimmerdruck arbeitet.

摘要翻译： 密度传感器连续测量电池的电解质密度，并将测量值转换为电信号。 为此，提供了一种测量系统，其采用与电解质密度变化的浮动压力。

公开(公告)号：EP0073158A2

公开(公告)日：1983-03-02

申请号：EP82400846.0

申请日：1982-05-07

申请人： Boivin, Louis

发明人： Guay, Raymond ,  Moffatt, Pierre R.

IPC分类号： G01N9/20

CPC分类号： G01N9/20

摘要： An electronic hydrometer (10) for determining the density of a liquid, the hydrometer comprising a housing (11) having a liquid receiving chamber (13) and means to insert a liquid of which the density is to be determined in the chamber. A float (22) having a known weight is disposed in the chamber. A connecting shaft (24) is secured to the float and retained for guided displacement along its longitudinal axis in response to introduction of a predetermined quantity of liquid in the chamber. A sensor (29) is associated with a shaft for detecting a reference position of the shaft. A permanent magnet 30 is mounted in proximity of the shaft and has a magnetic core (31) and a displacement coil (32) about the core. The coil is secured to the shaft. An electronic circuit means automatically adjusts the valve of a current flowing in the coil to displace the coil and the shaft relative to the reference position. The value of the adjusted current is calibrated by the circuit to generate an output signal indicative of the density of the liquid in the chamber.

摘要翻译： 一种电子比重计（10），用于确定开采液体的密度，比重计，其包括壳体（11）具有液体容纳室（13）和手段插入的液体中的密度为确定性的开采在腔室中。 具有已知重量浮子（22）在所述腔室被设置。 连接轴（24）被固定到所述浮体和保留用于响应于引入的液体在所述腔室的预定量的沿其纵向轴线引导位移。 的传感器（29）与用于检测所述轴的基准位置的轴相关联。 的永久磁铁30被安装在所述轴的附近，并具有磁芯（31）和围绕芯的位移线圈（32）。 所述线圈被固定到轴。 一种电子电路装置，自动bestimmt在线圈中流动的电流的阀移位的线圈和相对于所述基准位置的轴。 经调整的电流的值由电路校准为指示在所述腔室中的液体的密度的输出信号以产生。