Atmospheric corrosion rate online monitoring sensor

Abstract

The invention discloses an atmospheric corrosion rate online monitoring sensor which comprises a corrosion monitoring module, an MCU (Microprogrammed Control Unit) module and a communication module. The communication module is connected with the MCU module; the corrosion monitoring module comprises a metal film test piece, a constant-current source module and an AD / DA (analog-digital / digital-analog) differential circuit module; the metal film test piece is connected with the constant-current source module; the constant-current source module is connected with the MCU module; the metal film test piece is connected with the AD / DA differential circuit module; the AD / DA differential circuit module is connected with the MCU module and is used for measuring the resistance value of the metal film test piece. The atmospheric corrosion rate online monitoring sensor has the advantages of high resolution ratio, high sensitivity, good reproducibility, low cost, portability and the like, is suitable for continuously monitoring concentration variation of gaseous pollutants in the atmospheric environment in real time on line and particularly has a wide application prospect in monitoring low gaseous pollutants in the museum cultural relics storage microenvironment. Moreover, the atmospheric corrosion rate online monitoring sensor also has practical value for monitoring the living environment and the newly renovated living-room environment.

Description

technical field [0001] The invention relates to the field of atmospheric corrosion rate monitoring, in particular to an online monitoring sensor for the corrosion rate of museum microenvironmental pollutants, in particular to an online monitoring sensor for atmospheric corrosion rate. Background technique [0002] Cultural relics are the mark of history, an important historical and cultural heritage, and a witness of human civilization. Most of the cultural relics are displayed and stored in the form of museums. According to incomplete statistics, there are more than 30 million pieces of cultural relics in my country's collections, with a complete range of categories, a huge number, and high value. Although modern environmental science and technology have achieved rapid development, the current preventive protection measures for the collection of cultural relics in my country are lacking, and the environmental quality of museums is not high. , Organic acid pollutants, inorga...

AI Technical Summary

Problems solved by technology

However, QCM has high sensitivity, is easily affected by temperature, relative humidity and dust, and its mechanical properties are relatively fragile.

Therefore, in view of the current lack of independent intellectual property rights in our country, the real-time monitoring technology and detection equipment of low-concentration gas pollutants in the preservation environment of cultural relics in the collection, there is an urgent need to develop on-line monitoring and sensing technology and special products for the corrosion rate of low-concentration pollutants in the atmospheric environment of museums

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