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钢丝绳断丝在线检测装置(以下简称装置)用于在线检测钢丝绳上的断丝位置、定量判别断丝根数以及当断丝数超过安全规程的标准时给予报警。为实现上述功能,装置由三部分组成:用于无损探测断丝的传感器,用于放大、滤波处理检测信号的预处理装置,用于对检测信号进行采集、分析处理的计算机分析系统。装置采用电磁无损检测方法,即:将钢丝绳被检测段磁化至饱和,如果钢丝绳上存在断丝,则在断丝口附近将产生局部扩散漏磁场,运用磁敏元件(如霍尔元件)探测绳表面磁场的变化,可获得断丝的无损检测信号,分析处理这一信号从而得到断丝的定量解释。根据这一原理,装置在结构及信号
Wire rope breakage online testing device (hereinafter referred to as the device) is used to online detect wire breakage on the wire rope position, the quantitative determination of the broken wire number and when the broken wire number exceeds the safety standards of the standard alarm. In order to achieve the above functions, the device consists of three parts: a sensor for nondestructive detection of broken wires, a preprocessing device for amplifying and filtering detection signals, and a computer analysis system for collecting and analyzing detection signals. The device uses electromagnetic non-destructive testing method, that is: magnetizing the tested section of wire rope to saturation, if there is broken wire on the wire rope, a local diffusion leakage magnetic field will be generated near the broken wire mouth, and a magnetic sensing element (such as a Hall element) Surface magnetic field changes can be obtained broken wire non-destructive testing signal analysis and processing of this signal to get a quantitative explanation of broken wire. According to this principle, the device in the structure and signal