虚拟仪器在设备故障诊断技术实验教学中的应用

在一般工科院校中,配置多套价格昂贵,操作复杂的动态信号分析仪器,用于《设备故障诊断技术》的实验教学是不可能的。虚拟仪器技术具有高效,易用,开放,灵活,更新快,功能强大,性价比高,用户定义等诸多优点,用于开设设备故障诊断技术的实验课,提高了实验效率,降低了实验成本,增强了学生学习的积极性,取得了良好的教学效果,如果使用功能固定的台式仪器,如频谱分析仪,模拟滤波器,数字存储示波器,动态信号分析仪等,则价格昂贵,而且操作技术复杂,在院校的。应用方案：使用National Instruments公司的LabVIEW图形化编程平台,PCI－6024E多功能数据采集卡,外加相应的传感器及振动计,噪声计等测量仪器,完成《设备故障诊断技术》课程的实验教学。

Application of Virtual Instruments in Experimental teaching of Machine Condition Diagnosis Technique

In an ordinary engineering college, it is impossible to deploy many suits of dynamic signal analysis instruments with expensive price and complex operation for teaching "Machine Condition Diagnosis Technique".Virtual Instruments have many advantages like high-efficiency, easy-to-use, opening, agility, fast-update, powerful function, high cost pertormance and defining, ect.Virtual instruments can improve experiment efficiency, reduce experiment cost, enhance positivity of the student's study when they are used to establish Machine Condition Diagnosis Technique, or they achieve a favorable teaching effect. If function-fixed desk-top instruments such as spectrum analyzer, analog filter, digital storage oscilloscope, and dynamic signal analyzer, etc, are used, their price are high and their operation are complex. it is impossible to set up several suits of these instruments in the college labs for experiment teaching. Application Scenario: Accomplish teaching of Machtoe Condition Diagnosis Technique by means of LabVIEW graphical programming platform of National Instruments Inc.,and measurement instruments such as PCI-6O24E multifunction data collection card plus corresponding sensor, vibrograph and noise meter etc.