Electrochemical coating stress sensor, apparatus and method for accurately monitoring and controlling electrochemical reactions and material coating

The present invention relates to an electrochemical coating stress sensor comprising a stress member for receiving an electrochemical coating layer; a support frame supporting the stress member; at least two bridging portions separating the stress member from the support frame and connecting the stress member to the support frame. The stress member includes an electrochemical coating zone comprising a metal or metal oxide layer for receiving the electrochemical coating layer.