Evaporation meter

Abstract

The invention discloses an evaporation capacity measurer which belongs to the field of hydrological measuring instruments and can accurately measure the evaporation capacity of a water surface. The evaporation capacity measurer comprises an upright post, a buoy, a measuring cylinder and a cover, wherein the lower end of the upright post is planted and fixed on a riverbed at the water bottom, and the upper end of the upright post is fixedly connected with the buoy; the buoy is a transparent cylinder with an upper bottom and a lower bottom, and the lower bottom of the buoy is provided with a through hole and the central part of the buoy is connected to the top end of an upright post; a floating plug which is matched with the shape of the cross section of the buoy is arranged in the buoy andcan rise and fall along with the buoyancy of water in the buoy; the center of the upper bottom of the buoy is connected with a cylindrical transparent measuring cylinder which is vertical and uprightwith the cover at the top end; the measuring cylinder communicates with the inside of the buoy; and water is provided in the buoy and the measuring cylinder. The design is applicable to hydrological survey sites.

Description

technical field [0001] The invention relates to a hydrological measuring instrument, in particular to an evaporation measuring instrument. Background technique [0002] The rise and fall of water levels in rivers and lakes is something that people, especially hydrologists, pay special attention to during the flood and dry seasons. In dry areas or seasons with large evaporation, the maintenance and change of water levels in surface water systems are closely related to the ecological balance of nature, industrial and agricultural production, and even people's health. Daily life is closely related, and it is very necessary to accurately measure and grasp the water level drop, that is, the evaporation amount per day or within a period of time; in real life, the measurement of relevant departments is relatively extensive, and the main technical means is based on the water level scale planted in the water body In fact, it is difficult to read the measured value of a day in the cas...

AI Technical Summary

Problems solved by technology

[0002] The rise and fall of water levels in rivers and lakes is something that people, especially hydrologists, pay special attention to during the flood and dry seasons. In dry areas or seasons with large evaporation, the maintenance and change of water levels in surface water systems are closely related to the ecological balance of nature, industrial and agricultural production, and even people's health. Daily life is closely related, and it is very necessary to accurately measure and grasp the water level drop, that is, the evaporation amount per day or within a period of time; in real life, the measurement of relevant departments is relatively extensive, and the main technical means is based on the water level scale planted in the water body In fact, it is difficult to read the measured value of a day in the case of daily changes in evaporation of a few millimeters or even less. Not to mention that it will be more difficult in the case of wind, waves and uneven water surface. Therefore, a measuring device that can accurately measure the evaporation of ground water is what people, especially professionals, hope to obtain.

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