High-resolution tipping bucket rain gauge device with error correction function

Abstract

The invention relates to a high-resolution tipping bucket rain gauge device with the error correction function. The high-resolution tipping bucket rain gauge device comprises a tipping bucket rain gauge, and is characterized by further comprising a rainfall intensity simulator arranged at the top end of the tipping bucket rain gauge, the tipping bucket rain gauge is connected with an error corrector through a rainfall signal line, the rainfall intensity simulator comprises a measuring cup body, a measuring cup neck, a measuring cup cover, an air inlet valve, a ventilation pipe, a water discharge pipe and a water discharge pipe plug, the measuring cup neck and the air inlet valve are arranged on the upper portion of the measuring cup body, the ventilation pipe is arranged in an inner groove in the body wall of the measuring cup body and is connected with the air inlet valve, and the error corrector comprises a CPU intelligent control panel, a liquid crystal display, a tipping bucket rain gauge interface, a state switching interface and a pulse output interface. By means of the high-resolution tipping bucket rain gauge device, the measurement result of the 0.1 mm tipping bucket rain gauge can be corrected in real time, the measurement error of the tipping bucket rain gauge is greatly reduced, for example, the measurement error of the 0.1 mm tipping bucket rain gauge can be reduced to + / -3% from the current + / -18%, and therefore the measurement accuracy of outdoor rainfall is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of hydrological and meteorological measuring instruments, in particular to a high-resolution tipping bucket rain gauge device with an error correction function for accurately measuring the natural rainfall in the field. Background technique [0002] Atmospheric precipitation measurement is an important link in the monitoring of the earth's water cycle, an important part of water resources utilization, and an important influencing factor in many aspects such as climate change, geological disasters, flood disaster early warning and environmental assessment. for precise metering. [0003] Rain gauges are used to monitor rainfall. There are different types of rain gauges on the market at present, but tipping bucket rain gauges are widely used for their cheap and stable and reliable characteristics. Although the 0.1mm rain gauge has high resolution and small evaporation error, it can correct It reflects the numb...

AI Technical Summary

Problems solved by technology

[0007] However, there is a divergence problem in the overturning of the upper bucket and the metering bucket. For example, when the upper bucket is overturned, the amount of water poured out is just enough to meet the overturning conditions of the metering bucket. There is no 4mm / min rainfall injection, resulting in the measurement error of the measurement tipping bucket

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