Corrosion early warning monitor based on impedance conversion technology

Abstract

The invention discloses a corrosion early warning monitor based on an impedance conversion technology. The monitor comprises a corrosion sensor, a temperature / humidity sensor, a central processing unit, a signal acquisition module, a signal conditioning module, a state display module, a communication module and a power supply module, wherein the central processing unit is connected with the signalacquisition module through the signal conditioning module, an outgoing line of the signal conditioning module applies an alternating current signal to the corrosion sensor, the input end of the signal acquisition module is connected with the corrosion sensor and the temperature / humidity sensor, and an output signal of the signal acquisition module is processed and converted by an analog / digital converter in the signal conditioning module and then enters the central processing unit. According to the invention, the accuracy and stability of corrosion data measurement and the anti-interference capability of the instrument are improved, the power consumption of the whole machine is reduced, the requirements of corrosion degree test and evaluation in an industrial environment, a natural environment, logistics storage and other environments can be met, and the instrument can also be used as an instrument for rapidly evaluating the effect of a volatile corrosion inhibitor in a laboratory.

Description

technical field [0001] The invention relates to a corrosion early warning monitoring technology, in particular to a corrosion early warning monitor based on impedance transformation technology. Background technique [0002] Corrosion refers to the metal exposed in the atmosphere in contact with oxygen, moisture and other impurities, chemical or electrochemical reactions occur, causing discoloration or corrosion, resulting in corrosion products that can be observed with the naked eye. For example, metal oxides, hydroxides, etc., the product of its corrosion is rust, commonly known as rust or rust. [0003] According to incomplete statistics, the economic losses caused by corrosion in all walks of life in my country reach tens of billions of yuan every year. In order to reduce the economic loss caused by corrosion, all metal materials are treated with anti-rust treatment. Commonly used antirust methods can be divided into three categories: the first category changes the inte...

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Problems solved by technology

[0008] In view of the status quo of the metal corrosion degree monitoring and detection technology in the prior art, especially in the implementation process of the corrosion degree monitoring technology, such as the difficulty of making the sensor, the inconvenient replacement of the test piece, the low test accuracy of the impedance conversion circuit of the monitor, and the large data error etc., the present invention provides a high-precision, high-stable corrosion early-warning monitor based on impedance transformation technology

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