Surveying

Current Attenuation can be performed with various electromagnetic tools including the Pipeline Current Mapper and Precision Pipe Locator for AC attenuation and the Stray Current Mapper for DC attenuation. The pipe is located and depth of cover is determined while simultaneously obtaining current measurement and current direction. All the data is captured and stored into a portable submeter GPS instrument for later download into a computer for data compilation and interpretation.

Measurements can be taken at 50 foot, 100 foot or larger intervals. Does not need to be taken every 5 feet to be effective. Measurements can be taken over many types of cover including concrete, rocks, pavement and water with no detrimental effect. Allows the operator a quick way to determine the overall pipeline coating condition. Allows the operator to obtain information very quickly on the electrical CP circuit and whether there are shorts, bonds or other unknown areas of concern. Gives the operator a fast and reliable way to narrow down the areas of concern where more detailed and time consuming surveys can be performed.