Vibration Testing System for Ventilator Based on Virtual Instrument

To obtain reliable test data of ventilator vibration and overcome defects of the traditional vibration test methods such as complicated instruments, low reliability, high costs and so on, the vibration measurement and analytical system for ventilator is established based on the virtual instrument technology using circulating cooling circuit, advanced accelerometers and signal acquisition. The program for acquisition and process procedure of vibration data are compiled with LabVIEW which is the graphical and modular programming language. The structure, function, design idea and theoretical basis of hardware and software systems for the test are described respectively. It proves that this system is more accurate and practical than conventional vibration meter.