DEVICE FOR NON-DESTRUCTIVE ELECTROCHEMICAL MONITORING OF THE SURFACE CONDITION OF METAL SAMPLES IN ELECTROLYTE Russian patent published in 2021 - IPC G01N17/02 

FIELD: non-destructive electrochemical monitoring.

SUBSTANCE: invention relates to the field of non-destructive electrochemical monitoring of the state of the surface of metal samples and can be used to assess the state of materials during prolonged maintenance in natural water, in particular materials of underwater devices for long-term operation. A device for non-destructive electrochemical monitoring of the surface state of metal samples in an electrolyte includes a circuit for measuring the potentials of electrodes, while the circuit consists of an electrochemical cell body made of an insulating material and having grooves for placing current electrodes, recording electrodes, test samples, and current concentrators in them installed between the recording electrodes and the test samples, above which current-limiting insulating plugs are placed in the same grooves above, and it also consists of a current generator connected through resistors by means of a wire with current electrodes placed in the body of an electrochemical cell filled with electrolyte, in which recording electrodes are also immersed, connected by wires to the inputs of potential meters, and test samples, and the current and recording electrodes are made made of rectangular pieces of stainless steel mesh and have an electrode body made of insulating material and having a cavity for inserting the mesh, in this case, the lower part of the electrode body is made perforated, designed for free flow of electrolyte in the electrochemical cell and electrical contact between the electrolyte and the metal mesh, which in turn is connected by means of a petal, bolt and washer with wires connecting the corresponding electrode to the current generator and potential meter, and current and recording electrodes, housing for holding samples, current concentrator and insulating plugs have the same width, equal to the width of the electrochemical cell.

EFFECT: expanding the functionality of the device, simplicity of comparative studies of a large number of different types and of the same type of samples under the same conditions, while reducing the operating time with the replacement of samples, without disrupting the configuration of the electric current in the electrochemical cell.

6 cl, 9 dwg