Abstract:

To meet the requirement of information acquisition and data analysis for the state of industrial equipment,this paper develops a portable vibration test instrument.The system adopts portable embedded system architecture,uses the acceleration sensor to gain vibration signals and gains speed and displacement signals by the integrator analog circuit double improved.The MCU gathers and stores the information.This system has USB communication,Flash memorizer,48 bit authentication energy-saving power manager,LCD display and SD memory.The system has such functions as time-domain signal display and analysis,spectrum analysis,resonance vibration demodulation and trend analysis.Experimental results show that the system is stable and reliable,and data analysis  is accurate and fast,meeting the expectation.

Key words: itinerant checking system;signal analysis;vibration measuring