发明名称 METHOD AND APPARATUS FOR DETECTING ELEVATOR ROPE DEGRADATION USING ELECTRICAL OR MAGNETIC ENERGY
摘要 <p>A method and system for detecting or measuring defects in a rope having ferromagnetic tension members includes a magnetic field exciter and an array of magnetic flux sensors corresponding to the tension members in a known relationship. Measurements of magnetic flux leakage are indicative of defects. Another aspect of the invention includes a method and system for detecting or measuring defects in an elevator rope having electrically conductive tension members, whereby measured electrical resistance in the tension members is indicative of defects.</p>
申请公布号 WO2000058706(A2) 申请公布日期 2000.10.05
申请号 US2000007279 申请日期 2000.03.17
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