High-precision water surface evaporation amount measuring device and measuring method
A technology of water surface evaporation and quantity measurement, applied in the direction of instruments, etc., can solve the problems of low measurement accuracy and easy damage, and achieve the effects of low measurement cost, simple operation and wide application range.
Inactive Publication Date: 2018-10-09
INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
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Problems solved by technology
[0003] One of the purposes of the present invention is to provide a high-precision water surface evaporation measurement device to solve the problems of low measurement accuracy and easy damage under water shortage conditions of existing water surface evaporation detection devices; The measurement method of the water surface evaporation measurement device achieves the purpose of simple, accurate and rapid measurement of evaporation
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[0024] The device of the present invention comprises two parts, such as figure 1 As shown, one is the measurement part, and the other is the water gauge part that cooperates with the measurement. In the present invention, the water gauge part can be an independent water gauge, such as figure 1 As shown, the water gauge 1 is set perpendicular to the water surface. Considering the actual situation during installation, it is generally fixed on the edge of the water body and attached to the side wall of the water body. Water gauge 1 is a special water gauge for hydrology. In order to ensure that under low darkness conditions, fluorescent paint is attached to the surface of water gauge 1, so that it can also play a good reflective effect at night, so that the surface of water gauge 1 and A certain illuminance difference is formed on the water surface. In addition, the water gauge part may also be an integral structure with the water storage container.
[0025] The measuring part...
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The invention discloses a high-precision water surface evaporation amount measuring device and a measuring method. The measuring device comprises a measuring part and a water gauge matched for measurement, wherein the measuring part comprises a measuring probe, a power supply module and a communication module; the measuring probe is at least composed of an illuminant light source, a data collectorand a lens group and a linear array CCD arranged in the shell; the linear array CCD is arranged behind the lens group and is connected with the data collector through a data line; and the data collector comprises a single chip microcomputer, a driving circuit, an amplifying filter circuit and a comparator circuit. The device is simple to operate, the application range is wide, the measuring costis low, the measuring precision is extremely high, and the device can be used in a scientific test with high requirements on the measuring precision. The measuring method is built on the basis of themeasuring device. The sampling speed during the measuring process is extremely quick, and the collected data can be used for accurately measuring the evaporation amount after digital filter.
Description
technical field [0001] The invention relates to the measurement of water surface evaporation, in particular to a high-precision water surface evaporation measurement device and measurement method. Background technique [0002] Evaporation is an integral part of surface heat balance and water volume balance. It is one of the water cycle elements most directly affected by underlying surface conditions and climate change. Evaporation can also reduce the conversion of radiation to sensible heat and increase air humidity. , increase the minimum temperature and reduce the maximum temperature, play a role in regulating the climate. Water surface evaporation is an important observation item in meteorological and hydrological research. It refers to the amount of water evaporated into the air within a certain period of time. It represents the characteristics of land surface water evaporation and is an important component of the water cycle. There are two kinds of measurement methods ...
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CPCG01W1/00
Inventor 张冰高业新崔浩浩张亚哲冯欣
Owner INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI