Abstract: A system and method for acquiring three-dimensional images of a magnetic flux leakage present in steel tendons, which are embedded in concrete and/or grout. The inventive method magnetizes the steel tendon. Transducers detect the intensity of the magnetic field along the steel tendon. Using this magnetic intensity, three dimensional images of the magnetic flux leakage are generated using a data acquisition and computing device.

Abstract: A system and method for acquiring three-dimensional images of a magnetic flux leakage present in steel tendons, which are embedded in concrete and/or grout. The inventive method preferably magnetizes the steel tendon. Transducers detect the intensity of the magnetic field along the steel tendon. Using this magnetic intensity, three dimensional images of the magnetic flux leakage are generated using a data acquisition and computing device. Based on these images, a user can determine whether there is a fault, and what type of fault, in the steel tendon at that location, and therefore whether it should be investigated via a more intrusive procedure. The magnetic imaging device is capable of traversing the length of the tendon. As the invention moves along the tendon, images are generated. This allows the user to determine the location and source of a defect in real-time.