A system and method for monitoring the effectiveness of a coating on a substrate surface and indicating the failure of the coating to adequately protect the surface from corrosion, degradation, and the like. The system includes a sensor array positioned in contact with the coating utilizing a number of sensor electrodes connected to a single integrated circuit or a number of separate individual sensor circuits. The electrodes of the sensor array make measurements of the electrochemical impedance characteristics of the coating and provide such data by way of telemetry to a data interrogation device that is periodically be placed in proximity to the sensor array. The interrogation device may serve to both power the sensor array and trigger it to acquire data. A nominal parameter N′， which is the product of the impedance magnitude and the phase angle, is utilized as a direct indication of the resistance and capacitance characteristics of the coating and therefore a direct indication of the coatings effectiveness.

 

　　

　　一种用于监测涂层在衬底表面上的有效性和预测涂层未能充分保护表面免受腐蚀，劣化等的系统和方法。系统包括一个定位接触涂层的传感器阵列利用大量的传感器电极连接到一个单一的集成电路或多个独立的单个传感器电路。传感器阵列的电极用于测量涂层的电化学阻抗特性并且通过遥测方式提供这些数据给被周期性地放置在靠近传感器阵列的数据讯问装置。讯问装置可用于两个电源的传感器阵列，并触发它来采集数据。标称参数N',它是阻抗幅值和相位角的乘积，被用作涂层的电阻和电容特性的直接指示，因此，是涂层有效性的直接指示。