As a kind of corrosion monitoring technology, what are potential monitoring has its obvious advantages

Use of the principle have developed more resistance probe is used for monitoring equipment corrosion situation, is an effective tool of equipment corrosion. Can be in the process of equipment operation by using this method for continuous monitoring of equipment corrosion condition, to accurately reflect the equipment operation corrosion rate at each stage and its changes, and can apply to a variety of media, not affected by the influence of conductivity of medium, its temperature only restricted by materials; It is different from weightlessness method, do not need to remove the sample from the corrosive medium, also don't have to remove corrosion products;

Resistance method is fast, sensitive and convenient, large production equipment can monitor the corrosion rate of corrosion. Rate of technical foundation is based on the steady state conditions, the measured object is uniform corrosion or general corrosion, so linear technology can't provide the information of local corrosion. Under the condition of some special detection of metal corrosion rate usually need to be compared with other test methods to ensure the accuracy of the linear polarization detection technology. Linear polarization resistance method can online real-time monitoring of the corrosion rate. As a corrosion monitoring technology, potential monitoring has its obvious advantages: can not change the state of the metal surface, do not disturb production system from the production unit itself under the condition of rapid response, but it can also be used to measure the sample of the insert production mechanism.

Potential method has been applied in the cathodic protection system monitoring for many years, and is used to determine the conditions of the local corrosion occurred, but it can't reflect the corrosion rate. All this kind of method and electrochemical measurement techniques, applies only to the electrolyte system, and solution of corrosive material has good dispersion ability, to detect the state of the device's full potential. Application potential monitoring is mainly suitable for the following areas: anode and cathodic protection protection, activation and passivation behavior of the indicator system, and detect the early process of corrosion and local corrosion detection.