The invention discloses a cable strength detection method and
system, relates to the technical field of cable detection, and solves the technical problems that the
metal cable detection process is not standard, the defect positioning and quantification precision is low, the contradiction between the non-
metal cable detection efficiency and precision is prominent, and microscopic
verification is lacked. A high-frequency arc-shaped
phased array probe, a bicrystal oblique TOFD probe and an oil-based high-
viscosity coupling agent are adopted, a layered focusing technology is combined,
laser ultrasonic non-contact detection and ultrasonic
microscope high-resolution imaging are adopted for a non-
metal cable, and
spiral scanning and circumferential fixed-point scanning are combined, so that the defect omission ratio in the circumferential direction is reduced; the abnormal region judgment takes a
calibration test block as a reference, the misjudgment rate is reduced, the authenticity is verified through coarse scanning and locking of a core region, fine scanning and acquisition of a high-resolution image and multi-angle imaging, the defect type judgment basis is clear, and the misjudgment rate is reduced.