公开(公告)号：EP1614081A4

公开(公告)日：2006-06-07

申请号：EP03816822

申请日：2003-08-19

Applicant: STANDEX INT CORP

Inventor： CHAMBERLIN EDWARD R ,  LINSLEY PAUL

IPC: G01F23/24 ,  G01F23/60 ,  G01F23/68 ,  G08B21/00

CPC classification number: G01F23/242 ,  G01F23/243 ,  G01F23/60 ,  G01F23/683

Abstract: A liquid level sensor apparatus and a method of using thereof for determining the level of a conductive liquid held within a container, wherein the container is subject to the accumulation of residue as a consequence of the conductive liquid contained therein. The liquid level sensor includes a sensor part which has a voltage; a ground connection having an electrical polarity; a circumferential ring having a bias voltage opposite in polarity to the ground connection and a voltage corresponding to that of the sensor attached around the sensor; a float which is buoyant on the conductive liquid; and a conductive tip attached to the top of the float, the conductive tip being conductive with the sensor end when in at least one predetermined position.

Abstract translation: 一种液位传感器装置及其使用方法，用于确定容器内容纳的导电液体的液位，其中由于容纳在其中的导电液体，容器受到残留物的积聚。 液位传感器包括具有电压的传感器部件; 具有电极性的接地连接; 周边环，其具有与接地连接极性相反的偏置电压和与附接在传感器周围的传感器的电压对应的电压; 浮在导电液体上的浮子; 以及附接到浮子的顶部的导电尖端，当处于至少一个预定位置时，导电尖端与传感器端部导电。