An atmospheric environment corrosion detection sensor and evaluation method

Abstract

The invention discloses an atmosphere corrosion detection sensor and an evaluation method thereof, and belongs to the technical field of sensor. The sensor includes a metal thin film wire, a detection capacitance and an insulation tube. The metal thin film wires comprise iron copper, zinc and aluminum wires; thin film wires of each material are in the number of N with different thicknesses, wherein n is a natural number more than 1; the metal thin film wires can be consumed and disconnected under external corrosion; the insulation tube is an insulating glass tube, ceramic tube or resin tube; the metal thin film wires and the internal wires are loaded on the outer surface of the insulation tube; each metal film wire is in series connection with a capacitor; the internal wire is in package insulation; and all detection capacitors are in parallel connection and lead out by test wires. According to the total capacitance value and the number of consumed metal thin film wire, the sensor can directly, quickly and accurately give the rating result, and has high accuracy.

Description

technical field [0001] The invention relates to an atmospheric environment corrosion detection sensor and an evaluation method, in particular to a method for classifying the corrosion level of the atmospheric environment by detecting the on-off of thin film lines with different thicknesses prepared by different types of metal materials, and belongs to the technical field of sensors. Background technique [0002] The general standard for corrosivity evaluation of atmospheric environment is ISO9223-2012 (corrosion of metals and alloys, classification of atmospheric corrosivity). In this standard, the atmospheric corrosion is evaluated according to the corrosion amount of four standard metal materials, iron, copper, zinc and aluminum in the atmospheric environment in the first year. However, the evaluation process involved in this standard is complicated to operate, there are many human interference factors, and the accuracy and repeatability of the evaluation results are poor....

AI Technical Summary

Problems solved by technology

However, the evaluation process involved in this standard is complicated to operate, there are many human interference factors, and the accuracy and repeatability of the evaluation results are poor.

For this reason, many new methods have been proposed on the basis of this standard. Patent CN201220196861.8 discloses a corrosion monitoring sensor for atmospheric environmental pollutants, which uses the detection of the continuity of metal thin film lines with different cross-sectional areas of the same metal to evaluate the atmospheric environment. , although this method can be more convenient to judge the corrosiveness of the atmospheric environment, it is easy to cause the evaluation of Misjudgment of results, inaccuracy

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