Comprehensive environment corrosion state characterization sensor and real-time in-situ monitoring method

The invention discloses a comprehensive environmental corrosion state characterization sensor and a real-time in-situ monitoring method. A sensor probe composed of a glass substrate, an insulating material, a first pair of electrodes, a second pair of electrodes and a standard working electrode is adopted, the standard working electrode confluence end and the second counter electrode confluence end are measured through a zero-resistance galvanometer to obtain a corrosion current signal of the corrosion rate of the measured metal adopted by the standard working electrode in the measured environment where the sensor probe is located in real time; when the excitation signal generating circuit applies a fixed-frequency alternating-current excitation signal to the second pair of electrode confluence ends, the first pair of electrode confluence ends and the second pair of electrode confluence ends are measured through the current measuring circuit, and feedback current signals related to the surface wet state of th