Apparatus and method for measuring fog-drop drift space distribution condition in wind tunnel
A technology of spatial distribution and droplet drift, which is applied in the direction of measuring devices, aerodynamic tests, and machine/structural component testing, etc., can solve the problems of easy saturation of water-sensitive paper, and achieve the effect of avoiding easy saturation and reducing measurement costs
Active Publication Date: 2017-05-31
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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[0005] In view of the above defects, the present invention provides a device and method for measuring the spatial distribution of fog droplets drift in the wind tunnel, which will not pollute the wind tunnel, reduce the cost of measurement, and avoid the defect that water-sensitive paper is easy to saturate
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.
[0042] In a first aspect, the present invention provides a device for measuring the spatial distribution of fog droplets drift in a wind tunnel, such as figure 1 As shown, the device includes a droplet collecting frame suitable for being placed in a wind tunnel, and the droplet collecting frame includes a mounting bracket 1 and a plurality of beams 2 mounted on the mounting bracket 1, each beam 2 includes a rotating The assembly and the water...
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The invention relates to an apparatus and a method for measuring a fog-drop drift space distribution condition in a wind tunnel. The apparatus comprises a fog-drop collection frame arranged in the wind tunnel, wherein the fog-drop collection frame comprises an installation support and a plurality of crossbeams installed on the support, each crossbeam comprises a rotating assembly and water sensitive paper installed on the rotating assembly, and the rotation of the rotating assembly enables the water sensitive paper to be exposed to the exterior or enables the water sensitive paper to be separated from the exterior. The water sensitive paper is used for collecting fog-drops, so that the advantage of the water sensitive paper on the aspect of fog-drop precipitation is kept, no fog-drop granularity measurement instrument is needed, and the measurement cost is reduced. Meanwhile, the water sensitive paper can be exposed to the exterior by virtue of the rotation of the rotating assembly so as to collect the fog-drops, and before the water sensitive paper is saturated, the water sensitive paper can be controlled to be separated from the exterior, so that the defect that the water sensitive paper is easy to saturate is avoided, the water sensitive paper not only can be applied to the measurement of fog-drop deposition in fields such as farmland and orchards and the scene of canopy penetration, but also can be applied to the wind tunnel.
Description
technical field [0001] The invention relates to the technical field of agricultural precision measurement, in particular to a device and method for measuring the spatial distribution of fog droplet drift in a wind tunnel. Background technique [0002] With the development of modern precision agricultural technology, plant protection and pesticide application technology has been widely used in the agricultural field. However, the problem of droplet drift is still the main problem in the fields of plant protection and pesticide application. The mist sprayed by the agricultural nozzle is affected by the environmental wind field, and it is easy to drift, which will cause serious water and soil resource pollution, non-target crop phytotoxicity, human and animal health threats and other problems. The problem of droplet drift caused by aerial spraying is particularly serious. In 1975, the US Environmental Protection Agency estimated that 10% to 60% of chemical substances drifted t...
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IPC IPC(8): G01M9/06
CPCG01M9/06
Inventor 唐青陈立平张瑞瑞徐刚徐旻邓巍伊铜川侯佳健夏浪
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI