Eddy Current Array (ECA) Probes
An Eddy Current Array (ECA), in its fundamental form, is a series of single coils arranged in a row or rows, allowing much larger single-pass coverage than a conventional single-coil eddy current probe. Because of the larger coverage, inspection times are significantly improved.
Multiplexing is used to enable/disable the coils in a specific sequence. UniWest’s RCAT array probes feature a miniature multiplexer built right into the probe.
Below are examples of “basic” ECA probes, but as you can imagine, most applications demand a somewhat custom probe to accommodate specific part geometry and required coverage demands. Please contact our ECA experts to discuss your specific application.
Advantages compared to conventional ETC probes
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Larger single-pass coverage
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Faster inspection times
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C-scan imaging & encoding improves flaw detection and visualization
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Complex shapes can be efficiently inspected using custom probes matching the part profile

RCAT-24X-CONFORM-1.2” IM
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24 differential orthogonal (cross wound) coils
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Frequency range: 500 kHz - 2 MHz
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Built-in multiplexer
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Coverage: 1.2”
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Encoder for C-scan display of coverage
RCAT-24P-CONFORM-2.4” IM
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24 absolute pancake coils
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Frequency range: 100 kHz - 500 kHz
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Built-in multiplexer
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Coverage: 2.4”
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Encoder for C-scan display of coverage

RCAT-16X
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16 differential orthogonal (cross wound) coils
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Frequency range: 500 kHz - 2 MHz
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Built-in multiplexer
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Coverage: 0.75”
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Pivoting head
RCAT-16P
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16 absolute pancake coils
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Frequency range: 500 kHz - 2 MHz
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Built-in multiplexer
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Coverage: 0.75”
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Pivoting head
CABLES:
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P/N: 75915-6 6’ cable, 12-pin Lemo to 27-pin Fischer (UniWest EVi)
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P/N 75995-6 6’ cable, 12-pin Lemo to 16-pin Lemo (EddyView II)
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P/N: 75915-10 10’ cable, 12-pin Lemo to 27-pin Fischer (UniWest EVi)
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P/N 75995-10 10’ cable, 12-pin Lemo to 16-pin Lemo (EddyView II)
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P/N: 75915-20 20’ cable, 12-pin Lemo to 27-pin Fischer (UniWest EVi)
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P/N 75995-20 20’ cable, 12-pin Lemo to 16-pin Lemo (EddyView II)