文档介绍：钢丝绳断丝无损检测装置设计
摘要
随着社会的不断发展,钢丝绳的应用越来越广,与此同时其安全性越来越受到人们的关注。为了实时在线监测钢丝绳断丝,介绍了钢丝绳无损检测的分类和无损检测的发展历程和趋势。本设计基于漏磁原理,利用霍尔传感器检测漏磁信号,采用模拟的传感器漏磁信号,即直接给电路输入电压信号,经过后续电路和软件处理后,完成了钢丝绳断丝无损检测的设计任务
信号处理系统主要由三运放高共模抑制比放大电路和低通滤波电路构成,实现了对钢丝绳断丝信号的放大和滤波,经过放大、滤波处理后的信号经过ADC0809进行A/D转换,转换后的数据接入单片机AT89C51,经过软件编程后,单片机控制数码管将电压数值显示出来,并通过LED灯亮的多少来判断钢丝绳断丝情况
编写的程序首先在Proteus软件上进行仿真,在理论上实现AD转换和数据显示的基本功能。在仿真的基础上,根据绘制的系统原理图在万能实验板上搭建了电路,并进行了调试,达到了预期的目标。
本设计不仅能够检测出钢丝绳内部缺陷,并能定量检测钢丝绳金属横截面积。可实时在线全绳检测,检测效率高,基本不受人为因数影响,结合人工检查和检测数据定量分析可评估钢丝绳损伤程度和强度损失情况。
关键词:钢丝绳,霍尔传感器,放大,滤波,A/D转换,单片机
BROKEN WIRE ROPE NON-DESTRUCTIVE
TESTING DEVICE DESIGN
ABSTRACT
With the continuous development of society, the application of wire rope is increasingly wide at the same time more and more people concerns their design of real-time online monitoring of wire rope for broken wires, introduced the classification of wire rope nondestructive testing and nondestructive testing and trends in the development process. The design is based on ic flux leakage principle, the use of Hall sensors to detect ic flux leakage signals, ic flux leakage sensor analog signal that directly to the circuit input voltage signal, through follow-up circuit and software processing, Wire pleted the task of designing non-destructive testing .
Signal processing system consists of three operational amplifiers with mon mode rejection ratio amplifier and low pass filter circuits, the realization of Wire Ropes signal amplification and filtering, through the amplification, filtering the processed signal through the ADC0809 for A / D conversion, converted data access microcontroller AT89C51, through software programming, the MCU control LED displays the voltage value, and by the number of LED lights to judge the situation Wire Ropes.
First of all programs written in the Proteus simulation software, in theory, AD conversion and data to achieve the basic functions. In the simulation based on the schematic drawing of the system built in the universa