Study And Development Of Vibration Testing System Based On Virtual Instruments

With the development of society and science-technology, the testing device becomes more and more popular and its character becomes higher and higher. To keep up with the development of technology ,we should continuously update the testing device in order to satisfy the needs of testing, meanwhile, the progress of methods of testing also give a drive for the development of technology. Virtual Instrument is an effective way to advance the precision. So we take this technology, and use necessary DAQ hardware to construct ourselves VIS(Virtual Instruments System), it can't only satisfy our needs, but also can cut cost,developer, and give assurance of precision and reliability, As the listed above, this paper complete a multi-parameter vibration testing system based on the virtual instrument which is according to the request of verification regulation, During the process the following tasks are accomplished.1 Study the application of Virtual Instrument in verification fields2 Choose the necessary device and construct the DAQ hardware.3 Use the structure method to develop the whole structure of the testing system and realize every functional module.4 Use the principle of numerical integration and discuss the method of integration from time domain and frequency domain in this paper.5 A vibration experiment is completed on this system , the pretty test result show the system is up to our expected goal and also prove the practicality of this system.