一种嵌入式集成化的振动测试系统研究

An embedded and intergrated vibration detecting system

针对目前振动信号测试系统的不足,设计了一种基于ARM和加速度传感器的振动测试系统。该系统能够感应多路振动加速度信号,同时完成对信号的滤波,采集和分析处理。系统由传感器部分,数据采集部分,微处理部分和计算机系统组成。微处理部分采用基于LPC2129为核心的嵌入式微处理器;数据传输采用可靠稳定的CAN协议,以保证数据传输的正确性。系统采用USB供电方式,结构紧凑,测量操作方便。最后从人体动力学角度验证了本系统的性能。

Aiming at present vibration signal detecting systems＇ insufficiency, one kind of vibration detecting system based on ARM and aecelerometer was designed. The system could induce muhi-ehannel vibration acceleration signals and complete signal tilting, acquiring and analysis processing. The system was composed of sensor part, data acquisition part, micro-processing part and a computer system. In the micro-processing part, an embedded micro-processor with LPC2129 as a core was used and the reliable stable CAN protocol was used to make the data transmission accurate. The USB power supply method was employed and the system structure was compact and conveniently to operate. Finally, the system was validated with examples of human body dynamics.