Liquid level meter type rain gauge

Abstract

The invention discloses a liquid level meter type rain gauge. The liquid level meter type rain gauge comprises a base, a casing, a drainage device, a water replenishing device, a water level monitoring and sensing device and other components, wherein the water level monitoring and sensing device is used for monitoring the water level in a rainfall measurement barrel and performing data communication with a central processing unit. According to the liquid level meter type rain gauge disclosed by the invention, a magnetostrictive liquid level measurement technology is creatively applied to rainfall measurement, and is combined with the drainage system and the water replenishing system to form a full-automatic rain gauge; the problem that the rainfall is difficult in accurate measurement under the condition of various rainfall intensities is solved, the measurement precision is improved, and the demand on actual work is met.

Description

technical field [0001] The invention relates to the field of precipitation measuring instruments and equipment, in particular to a liquid level gauge rain gauge. Background technique [0002] Rain gauges are the basic equipment for observing precipitation in meteorology, hydrology, oceanography and agriculture. [0003] The capacitance rain gauge has high measurement accuracy, but its sensitivity is reduced due to its large sliding friction resistance, and its temperature application range is small, its stability is relatively poor, and its moisture-proof performance is not good. [0004] The float mechanically coded rain gauge requires a relatively large float, which is insensitive to response and has the problem of large transmission resistance. [0005] The siphon rain gauge can continuously record the amount of liquid precipitation and the number of precipitation hours, and the intensity of precipitation can also be known from the precipitation record. The siphon rain ...

AI Technical Summary

Problems solved by technology

But there are the following disadvantages: (1) It is not sensitive when there is a small amount of rainfall, and there is a measurement error of tipping bucket rainfall

Because when the amount of rainfall in the tipping bucket does not reach the level of overturning, since there is no subsequent rainfall, the amount of rain in the tipping bucket will be evaporated and not counted in the rainfall statistics; (2) When there is a large amount of rainfall, the record is wrong, the main reason is that the water flow is too large , the tipping bucket is not turned over in time, resulting in no counting or less counting

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