R&D of a Libera test system based on virtual instrument and EPICS

The Shanghai Synchrotron Radiation Facility(SSRF) adopts Libera Electron from Instrumentation Tech-nologies as the main processor in beam position monitor(BPM) system.Some key features of the process,such as resolution,beam current dependency and fill pattern dependency,should be evaluated.In this paper,implementation of a Libera test system based on Virtual Instrument technology and EPICS is reported.LabVIEW was chosen as the software develop environment and a "LabVIEW CA Library" developed by SNS provided a cross platform CA inter-face between test routine and EPICS IOC inside Libera.The system has been applied to Libera acceptance test of the SSRF project.