Multi-sensor electronic nose-based conformal gas chamber and gas testing system and method

Abstract

The invention discloses a multi-sensor electronic nose-based conformal gas chamber and a gas testing system and method. A gas inlet and a gas outlet, which are oppositely arranged are formed in a sidewall of a mounting main body of the gas chamber; a plurality of detection ports for mounting gas sensors are formed in the upper end surface of the mounting main body; the gas chamber communicating with the gas inlet, the gas outlet and the plurality of detection ports is formed in a hollowed-cut in the mounting main body; the upper end surface of the mounting main body is sealed through a circuit board; a plurality of gas sensors matched with the detection ports are arranged on the lower end surface of the circuit board; the lower end of each gas sensor extends into the gas chamber through the corresponding detection port; and a chamber wall conformal with the gas sensors is arranged in the gas chamber. Gas detection is carried out on the basis of the conformal gas chamber, so that the volume of the gas chamber is fully utilized and the space of the gas chamber is effectively reduced. Compared with an electronic nose system with a regular gas chamber, the multi-sensor electronic nose-based conformal gas chamber has the advantages that the detection effect can be improved and the multi-sensor electronic nose-based conformal gas chamber can be effectively applied to various gas testing systems.

Description

technical field [0001] The invention relates to the technical field of electronic noses, in particular to a conformal gas chamber and gas testing system and method based on a multi-sensor electronic nose, which can be applied in the fields of environmental monitoring, medical diagnosis, food testing, quality control and the like. Background technique [0002] At present, most of the gas chamber structure of the sensor in the electronic nose system is to place the gas sensor in a regular container, but in this case, the volume of the gas chamber cannot be fully utilized, so that the gas concentration entering the gas chamber per unit time is very low. , is not conducive to gas sensor detection. In some cases, the head of the gas sensor is embedded in a plastic plate, and the plastic plate is covered on the gas chamber. Although the volume of the gas chamber can be fully utilized in this case, the gas sensor is broken and difficult to replace. Since the concentration of the t...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the gas chamber structure of the sensor in the electronic nose system is to place the gas sensor in a regular container, but in this case, the volume of the gas chamber cannot be fully utilized, so that the gas concentration entering the gas chamber per unit time is very low. , is not conducive to gas sensor detection

In some cases, the head of the gas sensor is embedded in a plastic plate, and the plastic plate is covered on the gas chamber. In this case, although the volume of the gas chamber can be fully utilized, the gas sensor is broken and difficult to replace.

Images