Digital control type pluviometer

Abstract

The invention discloses a digital control type pluviometer, which comprises a water receiver for receiving rainwater, a testing cylinder communicated with the water receiver, and a sensor arranged in the testing cylinder and used for measuring water level information, wherein the upper end of the sensor is connected with a reference test rod and is in wrapped connection with a pulley of a drag rope; two ends of the drag rope are connected with the upper end and the lower end of the reference test rod respectively; the drag rope drives the reference test rod to lift; a step motor is coaxially connected with the pulley so as to drive the pulley to rotate; a central processing unit is connected with the step motor and the sensor through two cables so as to acquire rainwater level informationmeasured by the sensor and process, store and display the rainwater level information, and the central processing unit controls the step motor according to the measured rainwater level information. The digital control type pluviometer uses a singlechip digital control technique to expand the measuring range, improve the definition to 0.1 percent, improve the precision error to + / -0.1 percent, realize high-precision measurement of the actual rainfall no matter the rainfall amount is large or small, and provide conveniences for weather and hydrological rainfall measurements.

Description

technical field [0001] The present invention relates to meteorological and hydrological rainfall measurement, and more specifically, to a numerically controlled rain gauge for realizing high-precision and large-range rainfall measurement. Background technique [0002] At present, the "tipping bucket rain gauge" is widely used in the measurement of hydrological and meteorological rainfall nationwide. The tipping bucket rain gauge has a long history and belongs to the technology imported from abroad before liberation. Although it has been improved for decades, the basic principle and structure remain the same. The tipping bucket rain gauge is only It is suitable for small and medium rainfall measurement. The small rainfall does not reach the weight of the tipping bucket. It is meteorological and hydrological elements. After 60 to 70 years, it is unreasonable to still widely use the tipping bucket rain gauge with low precision and narrow range when the scientific application te...

AI Technical Summary

Problems solved by technology

[0002] At present, the "tipping bucket rain gauge" is widely used in the measurement of hydrological and meteorological rainfall nationwide. The tipping bucket rain gauge has a long history and belongs to the technology imported from abroad before liberation. Although it has been improved for decades, the basic principle and structure remain the same. The tipping bucket rain gauge is only It is suitable for small and medium rainfall measurement. The small rainfall does not reach the weight of the tipping bucket. It is meteorological and hydrological elements. After 60-70 years, when the scientific application technology is highly developed, it is unreasonable to still widely use the tipping bucket rain gauge with low precision and narrow range. Therefore, it is unreasonable to introduce the modern scientific application technology Realized numerically controlled rain gauge, to replace the tipping bucket rain gauge, became a much needed task

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