公开(公告)号：US5722399A

公开(公告)日：1998-03-03

申请号：US465047

申请日：1995-06-06

申请人： Jacques Chevallet ,  Alain Frugier ,  Eric Louvet

发明人： Jacques Chevallet ,  Alain Frugier ,  Eric Louvet

IPC分类号： G01L7/00 ,  A61M1/14 ,  A61M1/16 ,  A61M1/36 ,  G01L11/00 ,  A61B5/00

CPC分类号： G01L11/006 ,  A61M1/3639 ,  A61M1/16 ,  A61M2205/3344 ,  A61M2205/3351 ,  A61M2205/3355

摘要： A liquid treatment apparatus includes a sensor which is sensitive to a variation in gas pressure and which generates signals indicative of sensed pressures. The apparatus also included a casing divided into a first compartment and a second compartment by a flexible membrane, the first compartment having at least one orifice for the introduction of the liquid, and the second compartment being connectable in a leaktight manner to the pressure sensor. A pump is provided to vary a quantity of gas in the second compartment, and a controller is provided to regulate the pump as a function of variations in pressure generated in the second compartment. The controller is configured to receive signals from the sensor and to cause, through the pump, at least two successive pressure variations, having opposite directions, in the second compartment so as to adjust said position of the membrane between a wall of the casing bounding the first compartment and a wall of the casing bounding the second compartment.

摘要翻译： 液体处理装置包括对气体压力变化敏感的并且产生指示感测压力的信号的传感器。 该装置还包括通过柔性膜分成第一隔室和第二隔室的壳体，第一隔室具有用于引入液体的至少一个孔，并且第二隔室以密封方式连接到压力传感器。 提供泵以改变第二隔室中的气体量，并且提供控制器以根据在第二隔室中产生的压力变化来调节泵。 控制器被配置为从传感器接收信号并且通过泵在第二隔室中引起具有相反方向的至少两个连续的压力变化，以便调节膜的位于封套的壳体的壁之间的位置 第一隔室和围绕第二隔室的壳体的壁。