Patent ID: 8958994
Filing Date: 2015-02-17
Classification: G01N

Abstract:
1. A non-contact acoustic signal propagation property evaluation system for synthetic ropes, the system comprising: a first transducer spaced from a side of a rope to be evaluated, configured to convert a first electrical signal into an acoustic signal directed towards the rope, wherein a first portion of the acoustic signal propagates through the rope in a transverse direction and a second portion of the acoustic signal passes around the perimeter of the rope; a second transducer spaced from an opposite side of the rope and radially aligned with the first transducer, configured to receive and convert the first and second portions of the acoustic signal into a second electrical signal; a signal processing circuit configured to generate the first electrical signal and to receive and convert the second electrical signal into a digital signal; a processor connected to the signal processing circuit and executing computer readable code configured to attribute properties of the digital signal to acoustic propagation properties of the rope and provide a structural health measure of the rope based in part on the acoustic propagation properties of the rope.