Zobrazeno 1 - 3
of 3
pro vyhledávání: '"闫丰 Yan Feng"'
Publikováno v:
Optics and Precision Engineering. 22:2306-2311
A measuring system for the cutoff depth of out-band of solar blind UV filters with a large dynamic range is proposed by using narrow-band Light Emitting diode (LED) lights as the standard light source. The measuring error of the system is also analyz
Autor:
葛川 Ge Chuan, 杨怀江 Yang Huai-jiang, 李佩玥 Li Pei-yue, 李朋志 Li Peng-zhi, 隋永新 Sui Yong-xin, 闫丰 Yan Feng
Publikováno v:
Optics and Precision Engineering. 22:414-419
As open-closed loop iterative learning control scheme can up the convergence and reduce the tracking error, this paper uses the scheme to improve high frequency trajectory tracking accuracy of a piezoelectric actuator(PZT). First, a discrete-time ope
Autor:
隋永新 Sui Yong-xin, 苏志德 Su Zhide, 闫丰 Yan Feng, 葛川 Ge Chuan, 杨怀江 Yang Huai-jiang, 李朋志 Li Peng-zhi
Publikováno v:
Optics and Precision Engineering. 21:394-399
As the nonlinear hysteresis characteristic of a Piezoelectric Ceramic Actuator(PZT) has a big impact on periodic ultra-precise tracking accuracy,this paper investigates a methodology which combines the Dynamic Fuzzy System(DFS) feed-forward based on