WATER LEVEL MEASURING DEVICE CAPABLE OF IMPROVING THE ACCURACY OF MEASURING WATER LEVELS

摘要

PURPOSE: A water level measuring device is provided to measure a pneumatic pressure change inside an air path pipe using a pneumatic pressure measuring sensor because a check valve blocks air flow towards a regulator in the air path pipe.;CONSTITUTION: A water level measuring device comprises a pipe(10), an air path pipe(20), an air feeding unit(30), a pneumatic pressure measuring sensor(40), and a control unit(50). A container(1) filled with water is installed inside the pipe. The air path pipe is connected so that the upper part of the pipe and one side of the air path pipe are communicated. The air feeding unit is connected to the other side of the air path pipe, thereby feeding air to the air path pipe. The pneumatic pressure measuring sensor is connected to the air path pipe, thereby measuring pneumatic pressure inside the air path pipe. The control unit measures the level of fluid inside the container by using a pneumatic pressure value input by the pneumatic pressure measuring sensor.;COPYRIGHT KIPO 2012