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51318-11210- Manipulator Robot for Cathodic Protection Site Survey

Picture for 51318-11210- Manipulator Robot for Cathodic Protection Site Survey
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This paper presents the conceptual design of a manipulator robot for cathodic protection site surveys and some of the major applications of the same.

Product Number: 51318-11210-SG
Author: Joffin George
Publication Date: 2018
Industry: Cathodic Protection
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$20.00

Cathodic protection (CP) site surveys are used to assess the effectiveness of corrosion protection on buried and submerged steel structures. It measures voltage gradients set up in the electrolyte by defects in coatings, which cause electrical currents to flow through the electrolyte surrounding the structure. All CP site surveys require manual labor. There is a huge possibility of both instrument and human errors involved in such surveys. Among these errors almost 90 percent is contributed by human errors and these errors rise due to many factors such as physical stress, lack of proper knowledge, improper handling of the survey equipment etc. In carrying out a survey, the surveyor has to walk the entire pipeline route testing at regular intervals with the probes in a position of one in front of the other. The metallic structure may extend from a few meters to thousands of kilometers in size. Due to this, the survey becomes tedious and a huge stress is applied to the surveyor. By considering all these factors a manipulator robot is designed to perform the above mentioned tasks. This paper presents the conceptual design and some of the major applications of the same.

 

Key words: Manipulator robot, crack detection, aircraft carrier, close interval potential survey (CIPS), direct current voltage gradient (DCVG) survey, global positioning system (GPS) mapping, pipe to soil potential (PSP), copper sulfate reference electrode (CSE), test link post (TLP), transformer rectifier (TR).

Cathodic protection (CP) site surveys are used to assess the effectiveness of corrosion protection on buried and submerged steel structures. It measures voltage gradients set up in the electrolyte by defects in coatings, which cause electrical currents to flow through the electrolyte surrounding the structure. All CP site surveys require manual labor. There is a huge possibility of both instrument and human errors involved in such surveys. Among these errors almost 90 percent is contributed by human errors and these errors rise due to many factors such as physical stress, lack of proper knowledge, improper handling of the survey equipment etc. In carrying out a survey, the surveyor has to walk the entire pipeline route testing at regular intervals with the probes in a position of one in front of the other. The metallic structure may extend from a few meters to thousands of kilometers in size. Due to this, the survey becomes tedious and a huge stress is applied to the surveyor. By considering all these factors a manipulator robot is designed to perform the above mentioned tasks. This paper presents the conceptual design and some of the major applications of the same.

 

Key words: Manipulator robot, crack detection, aircraft carrier, close interval potential survey (CIPS), direct current voltage gradient (DCVG) survey, global positioning system (GPS) mapping, pipe to soil potential (PSP), copper sulfate reference electrode (CSE), test link post (TLP), transformer rectifier (TR).

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51318-11271- AC Corrosion Control: When Too Much Cathodic Protection Might Just be a Bad Thing!

Product Number: 51318-11271-SG
Author: Dale Lindemuth / Dan Crabtree
Publication Date: 2018
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Case histories where throttling down the cathodic protection was evaluated to determine the impact on reducing the AC corrosion threat. Includes the use of fast-response electrical resistance corrosion rate probe monitoring technology.
Picture for 51318-10544-Cathodic Protection, Coatings that Shield Cathodic Protection, Stress Corrosion Cracking and Corrosion Assessment in Aging Coated Pipe Lines and Buried Utility Structures
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51318-10544-Cathodic Protection, Coatings that Shield Cathodic Protection, Stress Corrosion Cracking and Corrosion Assessment in Aging Coated Pipe Lines and Buried Utility Structures

Product Number: 51318-10544-SG
Author: Mehrooz Zamanzadeh / George T. Bayer / Anil Kumar Chikkam
Publication Date: 2018
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Here we would like to elaborate on corrosion risk associated with coatings that shield cathodic protection.
Picture for Cathodic Protection and MIC - Effects of local electrochemistry
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Cathodic Protection and MIC - Effects of local electrochemistry

Product Number: 51317--9452-SG
ISBN: 9452 2017 CP
Author: Stefan Jansen
Publication Date: 2017
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The goal of this research was to improve the understanding of the mechanisms of cathodic protection (CP) by determining the interactions between corrosion and local chemical parameters, such as pH, under varying CP conditions, both in the absence and presence of MIC.
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