Nuclear Techniques ›› 2017, Vol. 40 ›› Issue (11): 110102-110102.doi: 10.11889/j.0253-3219.2017.hjs.40.110102

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

Development of a test platform for digital beam position monitor processor at SSRF

CHEN Fangzhou1,2, LAI Longwei1, YAN Yingbing1, LENG Yongbin1   

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-06-30 Revised:2017-09-18 Online:2017-11-10 Published:2017-11-08
  • Supported by:
    Supported by National Natural Science Foundation of China (No.11375255, No.11305253)

Abstract: Background: To satisfy the requirements of digital beam position monitor in Dalian coherent light source (DCLS) and Shanghai X-ray free-electron laser (SXFEL), over 200 digital beam position monitor processors (DBPM) have been developed at Shanghai synchrotron radiation facility (SSRF). Purpose: This study aims to develop an automatic test platform for the device acceptance test and performance evaluation of these DBPMs. Methods: Based on MATLAB and standard commands for programmable instruments (SCPI), a signal is produced by the Agilent signal source MXG N5181A to simulate the real beam signal. Experimental physics and industrial control system (EPICS) is adopted as the network control system to integrate instruments test commands and experimental data are transferred via a router. EPICS LabCA is used to realize the data acquisition channel access interface. Results & Conclusion: The platform has been successfully used to test the noise level, crosstalk between channels, amplitude frequency response and signal noise ratio (SNR) of all DBMPs at both DCLS and SXFEL automatically.

Key words: MATLAB, DBPM, EPICS, SCPI, SSRF

CLC Number: 

  • TL506.6