公开(公告)号：US5247833A

公开(公告)日：1993-09-28

申请号：US924749

申请日：1992-08-04

申请人： Toshihisa Sasaya

发明人： Toshihisa Sasaya

IPC分类号： G01F23/18 ,  G01F23/14 ,  G01F23/24 ,  G01F23/74 ,  G01F25/00 ,  H01H36/02

CPC分类号： G01F23/14 ,  G01F23/74 ,  G01F25/0069 ,  H01H36/02

摘要： An apparatus for measuring a water level of a dam by combining a pressure type water level gauge measuring the water level by detecting water pressure at a bottom of the dam, with a plurality of float type water level switches arranged along the depth of the dam and provided at an interval less than a tolerance allowed to the gauge. Obtaining a water level difference between the water level measured by the gauge and the water level at the switch respectively, the gauge water level is corrected to a water level obtained by subtracting the difference at one of the switches from the gauge water level, when a water surface of the dam is located between the one of the switches and the gauge or an adjacent switch. The abnormality of the gauge is found by detecting whether the difference exceeds a water level tolerance allowed to the gauge.

摘要翻译： 一种用于通过组合压力式水位计来测量水位的装置，通过检测坝底部的水压，以及沿坝的深度布置的多个浮式水位开关，以及 以小于容许量规的公差的间隔提供。 通过分别获得由量规测量的水位与水位之间的水位差，将表水位校正为通过从表水位上减去其中一个开关的差而获得的水位，当a 水坝的水面位于一个开关和量规之间或相邻的开关之间。 通过检测差异是否超过测量仪允许的水位公差，发现量规的异常。