A field gas sampling device

Abstract

The invention relates to a field gas sampling device, which solves the problem that due to the influence of crops, the field gas has large differences in crop directions, and the representativeness of the gas sampled by the field sampling device is not good enough to cause fluctuations in detection results. The device includes a sampling air pipe, an air pump, a sampling solenoid valve, and a sampling air bag connected in sequence. The air pump and the sampling solenoid valve are also connected with a timer. The front end of the sampling air pipe is also provided with an air circulation device. The air circulation device includes a vertical The upper end of the cylinder is evenly provided with a number of radial air inlets on the circumference, and the lower end of the cylinder is evenly provided with a number of air outlets on the circumference, and each air outlet is equipped with a blower blowing outward. The front end of the sampling gas pipe is arranged on the cylinder wall in the middle of the cylinder and communicates with the inside of the cylinder. The invention utilizes the circulation device to drive the field air circulation, eliminates the uneven distribution of air caused by field crops, makes the field gas sampling more representative, and the detection results can accurately reflect the real situation in the field area.

Description

technical field [0001] The invention relates to a sampling instrument, in particular to a field gas sampling device. Background technique [0002] With the development of scientific research work, researchers have made more and more detailed research on the growth environment of field crops. Not only the soil composition, fertilizer type, and fertilization time in the crop growing field are studied, but also the climate conditions, temperature and humidity, light time, light intensity, etc. of each day in the process of crop growth are involved. With the further refinement of the research work, the researchers proposed to sample the air in the crop growth field to study the interaction between the field air and the crop growth process. Traditional field gas sampling generally adopts manual sampling, which requires researchers to regularly go to the field to manually sample. This sampling method has a great human influence, and in order to make the sampled gas more represent...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that due to the influence of crops, the field gas has large differences in the crop directions, and the representativeness of the gas sampled by the field sampling device is not good enough to cause fluctuations in the detection results, and a field gas sampling device is provided.

Images