Nanometer gas sensor modeling method based on equivalent circuit

Abstract

The invention provides a nanometer gas sensor modeling method based on an equivalent circuit, and relates to the technical field of gas sensors. According to the method, blind box processing and modularization processing are carried out on the nano gas sensor, an equivalent circuit is used for simulating the nano gas sensor, after the whole equivalent circuit of the nano gas sensor is packaged, an input and output effect similar to that of an actual sensor is generated, and the modularization processing comprises the steps of firstly carrying out preliminary division through functions. Different parameters, different operation processes and different expression forms are subjected to module refinement, the equivalent circuit is divided into an input circuit subsystem, a conversion circuit subsystem and a filter circuit subsystem, and the three subsystems are sequentially connected in series. According to the method, the problems that in the model building process of the nano gas sensor, only description can be performed but simulation cannot be performed are solved, the problem that the nano gas sensor model does not have universality is solved, and the problem that the influence of different parameter changes on sensor response is described at the same time is solved, so that the cost is reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of gas sensors, in particular to an equivalent circuit-based nanometer gas sensor modeling method. Background technique [0002] A gas sensor is a device that can convert information such as gas composition and concentration into electrical signals, including semiconductor gas sensors, electrochemical gas sensors, catalytic combustion gas sensors, thermal conductivity gas sensors, infrared gas sensors, and solid electrolyte gas sensors. Various types of sensors. [0003] In recent years, gas sensors have been widely developed in biology, chemistry, machinery, aviation, military, etc. Nanostructured materials have been widely used to make gas sensors due to their advantages of lowering the working temperature and consuming less energy. Performance tends to change abruptly after scaling. The most important feature of nanostructured materials is a particularly high specific surface area, which will facilitate...

AI Technical Summary

Problems solved by technology

Therefore, although with the deepening of the research, we can obtain a more definite response mechanism of the nano gas sensor, but we cannot obtain a simpler representation, and it is not very helpful for the design and production of the actual nano gas sensor.

In fact, in the design process of nano-gas sensors, it is necessary to continuously make new sensors and test them to determine the response of nano-gas sensors. In the test process, if only one sample is measured under one condition , not only will it take a lot of time, but the process will become very cumbersome

At the same time, ordinary measurement methods can only correspond to one specific situation at a time. If it is necessary to reflect the response ability to change with multiple variables, the subsequent experimental data processing will be very time-consuming.

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