Sampling device for fog drop spectrometer

Abstract

The invention provides a sampling device for a fogdrop spectrometer, the fogdrop spectrometer is arranged on a bottom plate, the bottom plate is provided with an air pump and a temperature controller, the output end of the air pump is connected with the air inlet end of the fogdrop spectrometer, a driving assembly is arranged in the bottom plate, a fixing frame is arranged on the bottom plate, the temperature controller is arranged in the fixing frame, and the fogdrop spectrometer is arranged on the bottom plate. One end of the fixing frame is connected with the driving assembly, the other end of the fixing frame is movably clamped in the bottom plate, the vertical adjusting assembly is arranged on the side wall of the fixing frame, the transverse adjusting assembly is arranged on the upper wall of the fixing frame, and the fixing ring is arranged on the transverse adjusting assembly and the vertical adjusting assembly. One end of the folding pipe is connected with an air inlet of the air pump, and the other end of the folding pipe is movably arranged on the fixing ring. According to the invention, the sampling piece is controlled to rotate and stretch out and draw back, so that radiation fog at different positions at the same height is sampled, and a more targeted forecasting service is provided for a specific road section in land traffic in a heavy fog weather local area.

Description

Technical field [0001] The present invention relates to the technical field of droplet spectrometer, in particular to a sampling apparatus for a droplet spectrometer. Background [0002] Fog is a natural weather phenomenon, it is composed of a large number of particle size in 2 ~ 100 μm of small water droplets or ice crystals composed of aerosol system, according to the formation conditions of fog can be divided into radiation fog, advection fog, mixed fog, uphill fog and front fog, fog is mostly at night to morning, after the sun will gradually dissipate, the daily change characteristics are obvious, radiation fog is particularly obvious. Radiation fog refers to the fog formed by the condensation of water vapor in the ground gas layer due to the cooling effect of radiation on the surface, which is the most common fog on the land of Our country, and it is also the most common fog in winter, which mainly appears near the ground at night or in the morning. The thickness of the radi...

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Problems solved by technology

[0005] Most of the current droplet spectrometers use air duct sampling. This sampling method is to sample the fixed height of the air duct connected to the droplet spectrometer and the air in a small area around the air duct at this height. However, the fog The local characteristics of the radiation fog are very obvious, especially the thickness of the radiation fog near the ground is different at different heights at the same position and at different positions at the same height, so the corresponding microphysical characteristic parameters will also be different

The current air duct sampling method reflects the average condition within a certain range and cannot fully reflect the real fog situation in a specific location. For example, in a specific road section in land traffic, there will be local heavy fog. Local characteristics require fine sampling and detection of fog in local areas to help meteorological departments provide more accurate, targeted and humanized forecast services for land traffic

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