| Popis: |
Ultra-high-speed dynamic spectrum of the various transient detection has become the main means of access to information.However,due to the the characteristics of high transmission and temporal resolution in spectrum data acquisition system,the CCD must have real time output,the data is large,and a high speed acquisition system is required.A CCD data acquisition system based on FPGA is designed.The whole system is controlled by FPGA,which is used to supply CCD timing and controls signal disposal,storage and transmission of data.Finally the data is transferred by USB bus into computer to do further processing to get a complete explosion spectral information.With this system four time temperatures during 100 ns detonation can be measured,and the results show that the system has a higher measurement accuracy and speed,which can be achieved high-speed spectral information collection and storage during the explosion.It also can be applied to other transient information acquisition. |
