Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China
The design of the BFEL optical cavity's 5-D precise remote-control adjuster is described. This paper discusses the special chracteristic of the FEL cavity, and introduces how to inplement the transfer of the cavity's displacement and angle adjusting inside and outside the vacuum chamber. This optical cavity adjuster is designed with 3-level control precision, its displacement's adjustment range is +/- 5mm, the resolution is gum, the angle's adjustment range is +/- 3 degrees and the resolution is 0.5". This control system has been used in BFEL's experiments.