NORTEC EDDY CURRENT PROBES
Nortec eddy current probes are designed and manufactured by Staveley Instruments in Kennewick, WA. There is a dedicated staff of probe engineers available to help you with your probe requirements - particularly if you require a product that must be specially engineered to your application. Optimal performance in your eddy current test is insured by selecting the right type of probe and one that is meticulously made. In addition to coil size and frequency, the physical shape of a probe contributes to a successful test. Flaw location and part geometry determine whether a standard probe can be used or if a custom design is needed. Below are some of the standard design probes available in wide range of diameters and frequencies.
Surface Probes - are available in a variety of frequencies and diameters, with shielded and unshielded coils. They can be used for crack detection as well as thickness measurement, conductivity and coating thickness.
Pencil Probes - are built for higher
frequencies and are therefore best for surface flaws. The Nortec 3551 type probe is
supplied with a built-in small diameter, low noise cable and an adjustable collar. They
are available with both absolute or differential coils in both bridge or reflection
configurations (shielded or unshielded).
Hand Held Bolt Hole Probes - have coils located at right angles to
the probe directions and are available with absolute or differential coils in bridge
configuration.
Scanner Driven Bolt Hold Probes - are used with scanner for
automatically rotating and indexing into holes.
Donut Probes - designed to inspect aircraft fastener hole with
fasteners in place. Available in various diameters in both bridge and reflection
configurations.
Sliding Probes - designed to inspect aircraft fastener holes at
higher scan rates than donut holes. Operating in the reflection mode only, they allow
inspection of fastener rows for surface and subsurface cracks.
ID Probes - usually have a frequency range of 5KHz - 100KHz in
absolute or differential configurations. Many body styles available depending on the
inside surface of tubes being inspected.
OD Coils - usually have a frequency range of 5KHz - 100KHz, in
absolute, differential, and switchable configurations. Tubes being inspected are passed
through the coil for absolute or differential flaw detection at high speeds.