Siphon throttling tipping bucket rain gauge

Abstract

The invention relates to a siphon throttling tipping bucket rain gauge. The siphon throttling tipping bucket rain gauge comprises a rain container and a reed pipe, and is characterized by further comprising a filter screen, an outer bucket, a siphon funnel, a siphon pipe, a siphon filter screen, a sand basin, a support, magnetic steel, a tipping bucket, a water drain funnel, a spirit bubble and a bottom disc. The filter screen is arranged at the bottom of the rain container, the rain container is arranged on the upper portion of the outer bucket, the outer bucket is arranged on the bottom disc, the support is arranged on the bottom disc, the sand basin is arranged on the lower portion of the siphon funnel, the siphon funnel and the sand basin are arranged at the top of the support, the siphon filter screen is arranged at the inlet end of the siphon pipe, the siphon pipe is arranged in the sand basin, the reel pipe, the tipping bucket and the water drain funnel are sequentially and axially arranged on the upper portion of the support, the magnetic steel and the reel pipe are arranged at the top end of the tipping bucket oppositely and symmetrically, and the spirit bubble is arranged on the upper portion of the bottom disc. Rainfall flow with the strength changing in real time is converted into relatively even water flow to flow in the metering tipping bucket, and therefore the precision of measuring the field rainfall capacity is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of hydrological and meteorological measuring instruments, in particular to a siphon throttling tipping bucket rain gauge for accurately measuring 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 resource utilization, and an important factor affecting many aspects such as climate change, geological disasters, flood disaster warning, and environmental assessment. Scholars in the industry have sought various methods to analyze rainfall Make precise measurements. The earliest rain gauge used required manual measurement and could not measure the rainfall process; the siphon rain gauge could record on paper and monitor the rainfall process with high measurement accuracy, but it could not be used in conjunction with modern electronic recording products; the principle of the...

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Problems solved by technology

[0005] 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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