https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Multi-mode resonant control of a microcantilever for atomic force microscopy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19004 Wed 11 Apr 2018 12:39:02 AEST ]]> Improving the scan rate and image quality in tapping mode Atomic Force Microscopy with piezoelectric shunt control https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:13553 Sat 24 Mar 2018 10:34:44 AEDT ]]> Passive piezoelectric shunt control of an Atomic Force Microscope microcantilever https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:13552 Sat 24 Mar 2018 10:34:44 AEDT ]]> Q control of an atomic force microscope microcantilever: a sensorless approach https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:13904 Sat 24 Mar 2018 08:25:28 AEDT ]]> A new approach to active Q control of an atomic force microscope micro-cantilever operating in tapping mode https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19463 Sat 24 Mar 2018 08:02:22 AEDT ]]> Minimizing probe loss in tapping mode atomic force microscopy using a switched gain resonant controller https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:21863 Sat 24 Mar 2018 07:59:12 AEDT ]]> Active piezoelectric shunt control of an atomic force microscope micro-cantilever https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17817 Sat 24 Mar 2018 07:57:29 AEDT ]]> Sensorless implementation of a PPF controller for active <i>Q</i> control of an AFM microcantilever https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:21082 Q) factor in the atomic force microscope (AFM), when operating in tapping mode, allows for an increase in imaging speed. Passive piezoelectric shunt control has several advantages over alternative methods of cantilever Q factor reduction. However, this technique uses a passive electrical impedance to modify the mechanical dynamics of the cantilever, which limits the amount of Q factor reduction achievable. This paper demonstrates that further reductions in the cantilever Q factor may be obtained with the use of an active impedance in the piezoelectric shunt control framework. The active impedance parameters are designed in such a way that the piezoelectric shunt controller emulates a positive position feedback controller in a displacement feedback control loop. A significant reduction in cantilever Q factor is obtained using an active impedance compared with that achieved with a passive impedance. The improvement in scan speed using this control technique is demonstrated with AFM images of a test sample.]]> Sat 24 Mar 2018 07:53:57 AEDT ]]> Sensorless damping control of a high speed flexure guided nanopositioner https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19365 Sat 24 Mar 2018 07:52:03 AEDT ]]> Control techniques for increasing the scan speed and minimizing image artifacts in tapping-mode atomic force microscopy: toward video-rate nanoscale imaging https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28704 Sat 24 Mar 2018 07:30:12 AEDT ]]> A switched gain resonant controller to minimize image artifacts in intermittent contact mode atomic force microscopy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22294 Sat 24 Mar 2018 07:17:29 AEDT ]]> Quality factor enhancement of an atomic force microscope micro-cantilever using piezoelectric shunt control https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22531 Sat 24 Mar 2018 07:15:42 AEDT ]]>