Research of Motion Control and Data Acquisition Synchronization in SSRF Station [上海光源光束线站同步控制技术的研究]

作者：Wang W.; Jia W.-H.; Zheng L.-F.^*; Wang J.

来源：Nuclear Electronics & Detection Technology, 2019, 39(2): 127-132.

• On-the-fly synchronization
• Position comparison
• UMAC

A motion control and data acquisition system aimed at the on the fly scanning was designed and implemented. The power UMAC controller and custom-developed driver are applied to control the stepper motor. And the picoammeter was used to read the photodiode based on EPICS platform. While the stepper motor is on the fly moving, the controller will output the synchronizing signal to trigger the acquisition system. The on-line test got the FWHM of the relationship between the monochromatic photons with the energy, the error from the step-by-step scanning test results is about 0.17%. It also shows that the accuracy of the on the fly scanning synchronization reaches sub-microsecond, which meets the requirements of advanced experimental methods in SSRF.

• 单位
  中国科学院大学