In this paper, we show some recent experimental applications of Brillouin optical time-domain analysis （BOTDA） based sensors for geotechnical monitoring. In particular, how these sensors can be applied to detecting ...In this paper, we show some recent experimental applications of Brillouin optical time-domain analysis （BOTDA） based sensors for geotechnical monitoring. In particular, how these sensors can be applied to detecting early movements of soil slopes by the direct embedding of suitable fiber cables in the ground is presented. Furthermore, the same technology can be used to realize innovative inclinometers, as well as smart foundation anchors.展开更多
In this paper, gas control on EAST in open and closed loop is discussed and its implementation into EASTPCS （plasma control system for the experimental advanced supercon- ducting tokamak） is introduced. Using a mode...In this paper, gas control on EAST in open and closed loop is discussed and its implementation into EASTPCS （plasma control system for the experimental advanced supercon- ducting tokamak） is introduced. Using a model to describe the plasma density response to the gas puff command, a gas simulation server （simserver） using MATLAB simulink tools and real time workshop was built up. Proper operation of the gas control algorithm was verified using this simserver. The simulation results suggested that the gas control can be applied in the next EAST campaign.展开更多
The EAST plasma control system （PCS） is in continuous development to satisfy the EAST experimental requirements. In order to realize low latency and distortion-free signal transmission between PCS and servo systems ...The EAST plasma control system （PCS） is in continuous development to satisfy the EAST experimental requirements. In order to realize low latency and distortion-free signal transmission between PCS and servo systems such as the poloidal field power supply, in-vessel coil power supply and real-time scope, reflective memory boards （RFM） were applied. The new hardware layout and enhanced performance are reported. Newly implemented PCS control algorithms for gas control and real-time data display are also presented.展开更多
文摘In this paper, we show some recent experimental applications of Brillouin optical time-domain analysis （BOTDA） based sensors for geotechnical monitoring. In particular, how these sensors can be applied to detecting early movements of soil slopes by the direct embedding of suitable fiber cables in the ground is presented. Furthermore, the same technology can be used to realize innovative inclinometers, as well as smart foundation anchors.
基金supported by the Key Project of Knowledge Innovation Program of Chinese Academy of Sciences (No. KJCX3.SYW.N4)
文摘In this paper, gas control on EAST in open and closed loop is discussed and its implementation into EASTPCS （plasma control system for the experimental advanced supercon- ducting tokamak） is introduced. Using a model to describe the plasma density response to the gas puff command, a gas simulation server （simserver） using MATLAB simulink tools and real time workshop was built up. Proper operation of the gas control algorithm was verified using this simserver. The simulation results suggested that the gas control can be applied in the next EAST campaign.
基金supported by National Natural Science Foundation of China(No.10835009)the Key Project of Knowledge Innovation Program of Chinese Academy of Sciences(No.KJCX3.SYW.N4)
文摘The EAST plasma control system （PCS） is in continuous development to satisfy the EAST experimental requirements. In order to realize low latency and distortion-free signal transmission between PCS and servo systems such as the poloidal field power supply, in-vessel coil power supply and real-time scope, reflective memory boards （RFM） were applied. The new hardware layout and enhanced performance are reported. Newly implemented PCS control algorithms for gas control and real-time data display are also presented.
