Eddy Current Array (ECA)

Eddy Current Array is an advanced electromagnetic inspection technique that uses multiple eddy current coils arranged in an array to provide enhanced coverage and sensitivity during tube inspection. ECA improves detection capability by capturing multiple inspection channels simultaneously.

This technique offers improved defect characterization and faster inspection compared to conventional single-coil eddy current testing.

Why Eddy Current Array Is Required

Conventional eddy current techniques may have limitations in coverage and defect characterization. Eddy Current Array addresses these limitations by providing improved spatial resolution and enhanced sensitivity to various defect types.

ECA supports high-confidence inspection of heat exchanger tubes, especially in large tube bundles.

Scope of Inspection

ECA is applicable to:

Non-ferromagnetic heat exchanger tubesStainless steel and alloy tubesCondenser and cooler tube bundles

Inspection Methodology

Eddy Current Array inspection is carried out by passing an array probe through the tube length. Multiple coils generate and receive electromagnetic signals simultaneously, allowing comprehensive coverage of the tube wall.

The acquired data is analysed to identify defect type, location, and severity. Enhanced signal visualization improves interpretation accuracy and supports efficient inspection of large tube populations.

Key Benefits

ECA provides improved defect detection, faster inspection speeds, enhanced coverage, and reliable data for tube integrity assessment.

Industries and Applications

Eddy Current Array is widely applied in refineries, power plants, petrochemical units, fertilizer complexes, and chemical processing industries.

Eddy Current Array enhances the effectiveness of heat exchanger tube inspection by improving detection capability and inspection efficiency. This service supports reliable integrity assessment and optimized maintenance planning.