Patent ID: 6087830
Filing Date: 2000-07-11
Classification: G01M,G01N

Abstract:
A remote field eddy current inspection device for water pipelines comprising:(a) an exciter unit housing an exciter means for producing a time-varying magnetic field in response to an exciting signal;(b) a detector unit housing at least one detector means for producing a detecting signal representative of the time-varying magnetic field proximal to said detector means and resulting from the exciter means; the detector unit having a centralizer to assist in positioning the unit centrally within the pipeline;(c) at least one processing unit housing signal processing components, the detector unit being in electrical communication with the processing unit; and(d) elongate flexible connectors spacedly interconnecting the exciter unit with the detector unit and the at least one processing unit, the elongate flexible connectors being selected to space the exciter means from the detector means a distance suitable for measurement of the remote field eddy current effect.