Non-Intrusive Method to Locate Strand Position in Post Tensioned Tendons
In this method a magnet traverses the circumference of the tendon and the force with which it is attracted to the strands within the tendon is measured as a function of angular position. That force information provides an indication of the location of the strands within the tendon. This technique has been proven very effective and the system was able to successfully recover the general shape of the envelope of the actual strand pattern in tendon specimens.
US 9,651,357 issued 2017-05-16 [MORE INFO
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