Multi-mobility atmospheric ion detection device

Abstract

The embodiment of the invention discloses a multi-mobility atmospheric ion detection device. The detection device comprises a bottom plate and a top plate, wherein a back plate is connected between the bottom plate and the top plate; an air guide port is formed in the back plate; a fan is connected to the air guide port in the back plate; the fan is connected with a base; the side part of the baseis depressed to form a clamping groove; the base is connected with a collection pipe; the collection pipe passes through the clamping groove from top to bottom; the air guide port is communicated with the collection pipe through the fan and the base; the top end of the collection pipe is connected with a negative ion sensor; the lower end of the collection pipe extends to the lower side of the bottom plate through the bottom plate; and the tail end of the collection pipe is connected with a host interface. The numbers of the air guide ports, fans, clamping grooves and collection pipes are four respectively, the four clamping grooves are formed in the side part of the base, and the inner side of each clamping groove is provided with a through opening. Simultaneous monitoring of multiple mobilities is realized so as to achieve simultaneous comparative monitoring and analysis of different particle sizes of ions, and achieve better results of comparative observation.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of environmental monitoring, and in particular to a multi-mobility atmospheric ion detection device. Background technique [0002] As we all know, the air contains a lot of negative ions, especially the negative ions with small particle size have good activity and are easily absorbed through human breathing, thus entering the human blood to promote the metabolism of the human body. Positive and negative ions in the air can be divided into large, medium and small ions according to their mobility. Ion mobility greater than 0.4cm 2 / (V`s) is a small ion, less than 0.4cm 2 / (V`s) is a large ion, and the middle ion is between the two. Charged atomic groups or molecular groups close to the molecular size belong to small air ions. These small air ions have a high speed of movement, collide with each other in the atmosphere, and continue to gather to form large or medium ions. [0003]...

AI Technical Summary

Problems solved by technology

[0003] Existing atmospheric ion monitoring equipment only provides ion detection with one mobility, and cannot provide ion detection with multiple mobility

Existing technologies are single-sensor or dual-sensor, unable to measure multiple mobilities or perform dynamic calibration technology tests on the same mobility

The value is unstable due to environmental interference, and it is impossible to realize the simultaneous comparative monitoring and analysis of different particle sizes of ions, and the observation effect is poor.

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