A corrosion protection system is provided. The corrosion protection system comprises an electrical contact coupled to an apparatus. The electrical contact can apply a negative potential to the apparatus. The corrosion protection system comprises a sensor. The sensor detects moisture with respect to the apparatus. The corrosion protection system comprises a power supply. The power supply is electrically coupled to the electrical contact and provides a negative potential to the electrical contact in accordance with commands of a processor. The processor utilizes the power supply attached to the apparatus via the electrical contact to provide and apply the negative potential to the apparatus based on a sensor signal from the sensor. The sensor signal indicates the detection of the moisture by the sensor.

A corrosion protection device, system, and method are provided. The device may operate while being coupled to the object being protected and to a power source using a total of only two terminals. This may be accomplished by de-referencing the return path node of the circuit using a choke device that blocks a temporal AC component of an anti-corrosion signal. The choke device therefore diverts the anti-corrosion signal to a single negative/ground path to the object and then returns through a positive lead of the circuit. A two terminal corrosion protection device may thereby simplify the installation process, for example on a vehicle, by not requiring that another connection be made to the object at a spaced apart location from a first connection to the object.

A system comprises a cathodic protection system having an anode and configured to protect a protected structure from corrosion. The system comprises a monitoring circuit operatively coupled to the cathodic protection system. The monitoring circuit comprises an electrical-to-optical transducer. The electrical-to-optical transducer is configured to generate a light signal in response to electrical current flowing between the protected structure and the anode of the cathodic protection system, the protected structure and a reference electrode, or the reference electrode and the anode.

A corrosion protection device, system, and method are provided. The device may operate while being coupled to the object being protected and to a power source using a total of only two terminals. This may be accomplished by de-referencing the return path node of the circuit using a choke device that blocks a temporal AC component of an anti-corrosion signal. The choke device therefore diverts the anti-corrosion signal to a single negative/ground path to the object and then returns through a positive lead of the circuit. A two terminal corrosion protection device may thereby simplify the installation process, for example on a vehicle, by not requiring that another connection be made to the object at a spaced apart location from a first connection to the object.

Provided are a system and method for reinforcing and protecting a reinforced concrete structure in which a reinforced concrete structure is divided and corrosion factors of the divided cross-sectional regions are monitored to automatically supply a protection current to each of the divided cross-sectional regions, thereby actively performing protection of the reinforced concrete structure, and also, by adjusting the level of a protection current according to the progression of corrosion in each divided cross-sectional region of the reinforced concrete structure, power consumption required for protection is optimized and protection is effectively performed, and also by disposing a carbon fiber textile grid in the surface of the reinforced concrete structure to be employed as both a reinforcement member and an anode of the reinforced concrete structure, microcracking which may occur in concrete curing is inhibited and thus permeation of moisture or a chloride into the surface thereof is prevented.

A system and methods of controlling a powered anode are disclosed. The method includes varying an electrical power input driving the powered anode through a range of values of a first electrical parameter, the range defined by an upper range limit and a lower range limit and measuring a current value of a second electrical parameter of the electrical power input during the varying. The method also includes determining a slope between the measured current values of the first and corresponding second electrical parameters and measured previous values of the first and second electrical parameters and comparing the determined slope to a predetermined slope threshold range and applying the current value of a first electrical parameter to the electrical power input when a discontinuity in the slope is determined.

A corrosion protection system is provided. The corrosion protection system comprises an electrical contact coupled to an apparatus. The electrical contact can apply a negative potential to the apparatus. The corrosion protection system comprises a sensor. The sensor detects moisture with respect to the apparatus. The corrosion protection system comprises a power supply. The power supply is electrically coupled to the electrical contact and provides a negative potential to the electrical contact in accordance with commands of a processor. The processor utilizes the power supply attached to the apparatus via the electrical contact to provide and apply the negative potential to the apparatus based on a sensor signal from the sensor. The sensor signal indicates the detection of the moisture by the sensor.

Provided are a system and method for reinforcing and protecting a reinforced concrete structure in which a reinforced concrete structure is divided and corrosion factors of the divided cross-sectional regions are monitored to automatically supply a protection current to each of the divided cross-sectional regions, thereby actively performing protection of the reinforced concrete structure, and also, by adjusting the level of a protection current according to the progression of corrosion in each divided cross-sectional region of the reinforced concrete structure, power consumption required for protection is optimized and protection is effectively performed, and also by disposing a carbon fiber textile grid in the surface of the reinforced concrete structure to be employed as both a reinforcement member and an anode of the reinforced concrete structure, microcracking which may occur in concrete curing is inhibited and thus permeation of moisture or a chloride into the surface thereof is prevented.

An anti-biofouling method which suppresses biofouling in water includes a preparation step of using a copper alloy-made anti-biofouling object member immersed in the water as a cathode electrode, and immersing and arranging an anode electrode member serving as a counter electrode of the anti-biofouling object member in the water, and a current supplying step of supplying DC current between the anti-biofouling object member and the anode electrode member.

A system and methods of controlling a powered anode are disclosed. The method includes varying an electrical power input driving the powered anode through a range of values of a first electrical parameter, the range defined by an upper range limit and a lower range limit and measuring a current value of a second electrical parameter of the electrical power input during the varying. The method also includes determining a slope between the measured current values of the first and corresponding second electrical parameters and measured previous values of the first and second electrical parameters and comparing the determined slope to a predetermined slope threshold range and applying the current value of a first electrical parameter to the electrical power input when a discontinuity in the slope is determined.