摘要：Broken wire is main manifestations of wire rope destruction and timely detection of broken wire can reduce accidents dramatically. A detecting method on broken wires is proposed which is based on principle of leaking magnetic flux of wire rope. Signal data acquisition circuit based on single chip AT89C51 is designed by utilizing integrated Hall element as magneto sensitive element. Damage signals acquisition, processing and display are completed with LabVIEW software in upper computer and experimental platform is constructed. The experiment results showed that the proposed system can detect the broken wires effectively. The broken position of wires could be located accurately and the error is less than one lay length (70 mm). The system also has the function of differentiating the degree of damage, thus it has popularizing use-value in engineering practice.
