1results about How to "With self-calibration function" patented technology

A rain gauge with self-calibration function includes a cylindrical body with an open top. A funnel is provided inside the cylinder, dividing the inner cavity of the cylinder into a water collection chamber and a measuring chamber from top to bottom. An ultrasonic probe for detecting water level is installed in the measuring chamber. The cylinder is supported by a mounting bracket, on which a weight sensor for weighing the cylinder is mounted. A calibration pipe and a calibration valve are provided on one side of the measuring chamber, and a drain pipe and a drain valve are provided at the bottom of the measuring chamber. The weight sensor, ultrasonic probe, calibration valve, and drain valve are all electrically connected to a data processing unit. Compared with the prior art, this application has the following beneficial technical effects: it has a self-calibration function, enabling online self-calibration with zero manual intervention and zero external equipment, thus maintaining long-term accuracy in liquid level detection.