摘要
针对机械臂,数控机床等加工设备的振动测试问题,研制了一款便携式双通道振动测试系统。采用ST-3电磁式传感器拾取设备的振动速度信号,利用AD620仪用放大器对传感器的mV级电压输出进行了放大。采用美国NI公司的USB-6008数据采集卡将放大后的信号传至上位机,同时基于LabVIEW平台编写了数字低通滤波,频谱分析和相关分析软件。实际测试表明,该系统可实现较高采样频率的采样,对机械振动信号的分析处理更为高效,同时系统具有体积小,操作简单,人机交互友好等优点。
A portable dual-channel vibration test system was developed for the vibration testing of the machine arm,numerical control machine tool and other machining equipments.The vibration speed signal of the device was picked up by the ST-3electromagnetic sensor,and the output of the mV voltage of the sensor was amplified by using the amplifier of AD620.The amplified signal was transmitted to PC by using USB-6008 data acquisition card of NI company,and the digital low-pass filter,spectrum analysis and correlation analysis software were written based on LabVIEW platform.The actual test results show that the system can achieve a higher sampling frequency sampling,and the mechanical vibration signal analysis and processing is more efficient.The system has the advantages of small size,simple operation,friendly human-computer interaction.
出处
《电子测量技术》
2016年第2期99-102,共4页
Electronic Measurement Technology
