External Pipeline Inspection Technology

Electromagnetic Bracelet Probe™ provides a practical solution for the fast, economical inspection of bare, coated, or wrapped force mains and potable water systems, easily adapting to any size ductile-iron, cast-iron, or steel pipe starting at a 6-inch diameter. Electromagnetic Bracelet Probe™ contains 16 high-resolution sensors that cover a 10-inch wide scan path along the outside of the pipe utilizing a low-frequency electromagnetic field that penetrates through the pipe wall. Variations in the thickness of the pipe result in changes to the field that are detected by the sensors. These field variations are measured by a Ferroscope™ instrument that records and displays via laptop computer. Data is displayed immediately and is available for instant analysis. Screen snapshots can be saved of the 3D color maps, strip charts, and voltage planes which are used to display, and size the degree of damage. Trends in wall thickness reductions can be easily seen and understood. Individual pits, graphed data, and erosion are all immediately visible.