Invasive as well as non-invasive neurotechnologies conceptualized to interface the central and peripheral nervous system have been probed for the past decades,which refer to electroencephalography,electrocorticography...Invasive as well as non-invasive neurotechnologies conceptualized to interface the central and peripheral nervous system have been probed for the past decades,which refer to electroencephalography,electrocorticography and microelectrode arrays.The challenges of these mentioned approaches are characterized by the bandwidth of the spatiotemporal resolution,which in turn is essential for large-area neuron recordings(Abiri et al.,2019).展开更多
This paper presents a quasi-distributed sensing method for wind turbine blade strain using fibre Bragg grating(FBG)arrays.The sensitive area of the blade strain variation is determined by simulation,and three fibre gr...This paper presents a quasi-distributed sensing method for wind turbine blade strain using fibre Bragg grating(FBG)arrays.The sensitive area of the blade strain variation is determined by simulation,and three fibre grating arrays are arranged on the surface of the sensitive part of the blade strain.Static experiments show that the strain is larger between 0.6 times blade length(0.6R)and 0.8 times blade length(0.8R),which is consistent with the simulation results.It is also found that the slopes of the strain versus load fitting curves are similar at different angles of attack,but the intercepts are different.The dynamic experiments show that the strain at 0.8 times blade length(0.8R)is the largest and changes most rapidly with time.The dynamic strain distribution is similar to the static experimental results.In this paper,the integration of quasi-distributed strain sensing for wind turbine blades is explored,providing a new fibre optic detection technique for strain monitoring.展开更多
文摘Invasive as well as non-invasive neurotechnologies conceptualized to interface the central and peripheral nervous system have been probed for the past decades,which refer to electroencephalography,electrocorticography and microelectrode arrays.The challenges of these mentioned approaches are characterized by the bandwidth of the spatiotemporal resolution,which in turn is essential for large-area neuron recordings(Abiri et al.,2019).
基金supported by Science&Technology Project of China Southern Power Grid(Grant/Award 090000KK52222092).
文摘This paper presents a quasi-distributed sensing method for wind turbine blade strain using fibre Bragg grating(FBG)arrays.The sensitive area of the blade strain variation is determined by simulation,and three fibre grating arrays are arranged on the surface of the sensitive part of the blade strain.Static experiments show that the strain is larger between 0.6 times blade length(0.6R)and 0.8 times blade length(0.8R),which is consistent with the simulation results.It is also found that the slopes of the strain versus load fitting curves are similar at different angles of attack,but the intercepts are different.The dynamic experiments show that the strain at 0.8 times blade length(0.8R)is the largest and changes most rapidly with time.The dynamic strain distribution is similar to the static experimental results.In this paper,the integration of quasi-distributed strain sensing for wind turbine blades is explored,providing a new fibre optic detection technique for strain monitoring.
