Partial saturation current (PSEC)

Partial Saturation Current (PSEC): High-Sensitivity Inspection for Ferromagnetic Tubes

Partial Saturation Eddy Current (PSEC), also known as magnetic bias eddy current testing, is designed for detecting localized defects such as pitting and corrosion in ferromagnetic tubes. It provides fast and reliable inspection results, especially in areas where early-stage degradation is a concern.


How It Works

Magnetic Biasing

A controlled magnetic field partially saturates the tube wall, stabilizing the magnetic response.

Eddy Current Induction

AC-driven coils induce eddy currents in the tube wall.

Flaw Detection

Localized defects disturb the eddy current flow, producing measurable signals that identify defect location and characteristics.


Key Advantages of PSEC

  • High Sensitivity: Detects small pitting and localized corrosion.

  • Fast Inspection: Covers tubes quickly, suitable for preventive maintenance.

  • Reliable Results: Stable signals even on ferromagnetic materials.


Ideal Applications

  • Heat exchangers and boiler tubes

  • Ferromagnetic piping in industrial plants

  • Systems requiring early detection of corrosion or pitting