Device (9) for inspecting an object (2) of electrically conductive material,comprising a non-static-signal transmitter for generatingan electromagnetic field in the object (2), and a receiver (20, 21) formeasuring the variations of the eddy current generated by thenon-static electromagnetic field and for producing a signal representing thedecay of the eddy current, wherein the non-static-signal transmittercomprises at least two laterally spaced-apart emitters (11, 12) for emittingan electromagnetic field, which emitters (11, 12) are, duringnormal operation, so driven that the resulting electromagnetic field in thecentral region (26), between the emitter; (11, 12), is intensified.
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