Problem to be solved: to provide quick and accurate measurement of water level and control of paddy field in real time.A water pressure gauge for a paddy field measuring a water level in a paddy field for controlling the water supply to a paddy field surrounded by a circumference, and composed of a water level measuring part, a signal processing part and a measuring part containing a diaphragm, and a differential pressure measuring pressure Sen having a diaphragm with an opening The sensor consists of a signal cable which transmits the measured value measured by the sensor to the signal processing unit, and the casing is a hollow casing in which the sensor is housed in one end in a watertight structure and the air opening is attached to the other end of the hollow housingThe signal processing unit is a paddy water level meter equipped with a pressure water level converter and a water level data transfer device.Diagram【課題】 水田の水位測定、制御をリアルタイムに迅速且つ正確に行うと共に、簡便且つ低コストな水田用水位計を提供する。【解決手段】 周囲を畔に囲まれた水田への給排水を制御するための水田内貯留水の水位を測定する水田用水位計であって、水位計測部と信号処理部と計測部を収納する筐体から構成され、水位計測部が開口部を有するダイヤフラムを備える差圧測定圧力センサーと、センサーが計測した測定値を信号処理部に伝達する信号ケーブルからなり、筐体が、一端に前記センサーを水密構造で収納する中空筐体で、大気開放口を中空筐体の他端側に備え、信号処理部が、圧力-水位変換装置と水位データ転送装置を備える水田水位計である。【選択図】 図1
