LIU Xuanye1, YANG Shengsheng2, QIN Xiaogang2, WANG Peng1

(1. Department of Precision Instruments,Tsinghua University, Beijing 100084, China; 2. Science and Technology

on Vacuum & Cryogenics Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China)

 

 

Abstract: Aiming at the data acquisition and instrument controlling tasks in the singleparticle impact test, a highspeed data acquisition program controlled system based on PXIe bus and digitizer was built. Features as highspeed data acquisition and streaming, realtime pulse counting, data playback, instrument remote control were established. 4 channels, 50MSPS/Ch sample rate, and 14bit resolution synchronous data acquisition were accomplished with NIPXI5122 digitizer. 380Mbyte/s throughput data storage for over an hour was achieved using NIHD8265 disk array. System software featuring instrument remote control and high performance streaming was developed with LabVIEW. The data acquisition and streaming performance of the system was tested in simulated experiment platform with 6μs width pulse signal. The result indicates that the system is capable to acquired and stream high speed data for several hours, and accomplish demanded functions as realtime pulse counting, data playback and instrument remote control.

 

Key words: data acquisition system; highspeed data streaming; programmable instrument control; remote computer control