a non - contact evaluation system for evaluating a synthetic rope . the system includes a first transducer , a second transducer , and a processor . the first transducer is located at a first position and configured to convert a first electrical signal into a wave directed toward the synthetic rope under test . the wave has characteristics such that at least of a portion of the wave passes around a perimeter of the synthetic rope . the second transducer is located at a second position opposite the first position and radially aligned with the first transducer . the second transducer is also configured to receive and convert the portion of the wave into a second electrical signal . the processor is configured to determine a structural health measure of the synthetic rope based on the second electrical signal .