Data Acquisition Card and Virtual Oscilloscope System

Due to the traditional oscilloscope is expensive and the equipment update cycle is long and the virtual instrument technology has superior performance,a data acquisition card was designed according to the audio chip with analog-digital conversion function.And a virtual oscilloscope was designed based on LabVIEW8.6 software platform.The virtual oscilloscope and data acquisition card constitutes a measurement system,which can be able to complete the analog signal acquisition,waveform measurement and data processing.In the low-frequency test cases,it can replace the traditional oscilloscope,and it is practical.