Eddyfi brings array to air cooler inspection with innovative near-field array probes


Dedicated to electromagnetic inspection technologies, Eddyfi has launched a new line of array tubing probes for carbon steel tubes, such as those found in fin-fan air coolers. The new near-field array (NFA) probes are said to represent a turning point in the evolution of NFT: the probes feature up to 30 coils and channel multiplexing makes C-scan imaging possible.

The NFA probe design allows the easy detection and sizing of defects commonly found in aluminium-finned carbon steel tubes, such as internal pitting, cracking, erosion and wall loss, in a single pass. NFA probes are also easier to use than other available inspection methods as their inspection speed is higher and they are highly durable thanks to their hardened-steel wear guides.

Olivier Lavoie, Product Manager, Oil and Gas Tubing Probes, commented: “An array technology for fin-fan air coolers has been sorely needed for a long time. Rapid C-scan imaging is a game changer for ferrous tubing: at 1305 mm/s – twice the speed of NFT – near-field array probes combine sizing capability, intuitive imaging, ease of use and durability. We’re very excited to introduce a complete line of NFA tubing probes for diameters ranging between ¾ in and 1½ in (19.1-38.1 mm).”

NFA probe data is displayed as 2D/3D C-scans, which are intuitive and rich in information. This enables the discrimination and sizing of defects.