Current Magnetometry Inspection (CMI) is EMPIT’s patented aboveground inspection technology that assesses buried pipeline condition from the surface — without excavation, pigging, or shutdown.

Current Magnetometry Inspection (CMI) is EMPIT’s patented aboveground inspection technology that assesses buried pipeline condition from the surface — without excavation, pigging, or shutdown. CMI uses precision magnetometry to detect and characterize pipeline anomalies by measuring the magnetic field generated by an applied inspection current flowing through the pipe wall.

CMI capabilities include:
• Corrosion detection with active/passive classification
• 3D pipeline geometry and position mapping
• Depth of cover measurement
• Coating condition assessment
• Bending strain and movement analysis
• Wall thickness profiling

CMI was specifically developed to solve the unpiggable pipeline challenge — inspecting pipelines that cannot accommodate inline inspection tools due to geometry, access, or operational constraints. With 10,000+ pipelines inspected across 30+ countries and 300+ TB of magnetometry data collected, CMI is the world’s leading aboveground pipeline inspection technology for both piggable and unpiggable pipelines.