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EDDY CURRENT ARRAY SENSOR, A ROLL DETECTION DEVICE USING THE SAME, AND A ROLL DETECTION METHOD, CAPABLE OF DETECTING THE DEFORMITY OF A ROLLING ROLL BY USING A SIGNAL SEPARATION ALGORITHM AND THE EDDY CURRENT ARRAY SENSOR
EDDY CURRENT ARRAY SENSOR, A ROLL DETECTION DEVICE USING THE SAME, AND A ROLL DETECTION METHOD, CAPABLE OF DETECTING THE DEFORMITY OF A ROLLING ROLL BY USING A SIGNAL SEPARATION ALGORITHM AND THE EDDY CURRENT ARRAY SENSOR
PURPOSE: An eddy current array sensor, a roll detection device using the same, and a roll detection method are provided to separate signals caused by matter properties of a roll by using an eddy current, thereby accurately detecting deformity.;CONSTITUTION: An eddy current array sensor comprises a driving coil(125) and a detection unit(110). The driving coil induces an eddy current to a target object. The detection unit is used as a channel for detecting a signal change caused by the induced eddy current. The detection unit comprises a first recognition coil and a second recognition coil. The first recognition coil is composed of a pair of coils. The second recognition coil is arranged with the first recognition coil.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Signal processing unit; (121) First recognition coil; (123) Second recognition coil; (125) Driving coil
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