C:/Documents and Settings/butterwo/My Documents/conference_journal_papers/CMMI_2009/CMMM_09_AFM_arch.dvi
نویسندگان
چکیده
We evaluate the performance of two control architectures applied to atomic force microscopes (AFM). Feedback-only control is a natural solution and has been applied widely. Expanding on that, combining feedback controllers with plant-injection feedforward filters has been shown to greatly improve tracking performance in AFMs. Alternatively, performance can also be improved by the use of a closed-loop-injection feedforward filter applied to the reference input before it enters the feedback loop. In this paper, we compare the plant-injection architecture with the closed-loop-injection architecture when used in controlling AFMs. In particular, we provide experimental results demonstrating the closed-loop-injection architecture yields better tracking performance of a raster scan.
منابع مشابه
C:/Documents and Settings/butterwo/My Documents/conference_journal_papers/AJC_spcl_iss_SPM/AJC_AFM_control_arch/AJC_AFM_control_arch.dvi
We evaluate the performance of two control architectures applied to atomic force microscopes (AFM). Feedback-only control is a natural solution and has been applied widely. Expanding on that, combining feedback controllers with plant-injection feedforward filters has been shown to greatly improve tracking performance in AFMs. Alternatively, performance can also be improved by the use of a close...
متن کاملC:/Documents and Settings/butterwo/My Documents/conference_journal_papers/ACC_2011_ILC/ACC_2011_ILC/ACC_2011_ILC.dvi
In previous work, we compared the raster tracking performance of two distinct combined feedforward/feedback control architectures while using model-inverse control [1], [2]. In this paper, we extend that previous work into the application of parallel and serial iterative learning control (ILC) architectures. These ILC architectures naturally relate to the two previously studied combined feedfor...
متن کاملC:/Documents and Settings/butterwo/My Documents/conference_journal_papers/IEEE_CST_Apdt_Tau/IEEE_CST_Apdt_Tau.dvi
We evaluate the performance of two combined feedforward/feedback control architectures applied to the raster scan of a piezo-based positioning system. Empirical work suggests that a nontraditional variation upon the feedforward plantinjection (FFPI) architecture may allow it to track a raster pattern at a higher performance level in the neighborhood typical of the feedforward closed-loop-inject...
متن کامل