Development of a web based fault diagnosis instrument system

All running machines may deteriorate because of abnormal mechanical wear, fatigue crack, poor lubrication and so on. Physical parameters such as vibration, sound, temperature, etc. may vary with its deterioration. In this paper a web based instrument system which can collect data of vibration, temperature, image, radio frequency identification, meter indicator and observed variables was developed for condition monitoring and fault diagnosis. Firstly, the structure and principle of the instrument system was introduced; then the portable instrument based on arm microprocessor and embedded Linux operating system was designed; after that the acquisition of vibration signal and the analysis of the vibration data was discussed; finally the function of application was presented. The developed instrument system provided an effective method for device management, condition monitoring and fault diagnosis. It has good practicability and can be easily incorporated with the enterprise asset management system.