Measuring device and method for monitoring damage degree of coating and corrosion rate of damaged part

The invention discloses a measuring device and a measuring method for monitoring the damage degree of a coating and the corrosion rate of a damaged part. A sensor for monitoring the damage degree of a coating and the corrosion rate of a damaged part comprises a conductive shell, a plurality of electrodes, a temperature measuring element and filling glue, and the electrodes are evenly distributed at an opening of the shell and do not make contact with the shell; the temperature measuring element can monitor the temperature change of the electrode in real time, the temperature measuring element is arranged on the side, opposite to the coating, of the electrode, and the temperature measuring element and the electrode are arranged in an insulated mode; the electrodes and the temperature measuring element can be fixedly arranged in the shell through the filling glue. According to the measuring device and the measuring method for monitoring the damage degree of the coating and the corrosion rate of the damaged part