公开(公告)号：EP1355135A3

公开(公告)日：2004-09-01

申请号：EP03076123.3

申请日：1995-06-28

申请人： Simmonds Precision Products, Inc.

发明人： Crowne, David H. ,  Lichtenfels, Frederick L., II ,  Maurice, Lisa B. ,  Freeman, Kip J.

IPC分类号： G01F23/72 ,  G01F23/296 ,  G01F23/00 ,  G01F23/04 ,  G01F23/74

CPC分类号： G01F23/0061 ,  G01F23/04 ,  G01F23/2963 ,  G01F23/72 ,  G01F23/74 ,  Y10S250/904

摘要： Fluid level sensing apparatus for detecting the fluid level in a container. The apparatus comprises a housing adapted to be disposed in the container; a float with an associated magnetic element, where the position of the float in the container corresponds to the fluid level in the container. A magnetostrictive sensor (12) and a stick gauge are also disposed inside the housing. The sensor (12) is coupled to a control circuit (40) which includes a circuit (44) that receives electromagnetic energy (32) from a remote unit (34). In addition, the control circuit (40) includes a circuit for detecting a signal from the sensor (50) and a circuit (54) for emitting electromagnetic energy (36) having a characteristic that is variable and dependent on the fluid level in the container to a remote location (34). The information received at the remote locat ion (34) may be displayed on a screen (38) or at another suitable operator interface (64).