Journal ArticleDOI
Feedback for physicists: A tutorial essay on control
TLDR
In this paper, a tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy a theorist wishing to understand its broader intellectual context.Abstract:
Feedback and control theory are important ideas that should form part of the education of a physicist but rarely do. This tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy the theorist wishing to understand its broader intellectual context. The level is generally simple, although more advanced methods are also introduced. Several types of applications are discussed, as the practical uses of feedback extend far beyond the simple regulation problems where it is most often employed. Sketches are then provided of some of the broader implications and applications of control theory, especially in biology, which are topics of active research.read more
Citations
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Journal ArticleDOI
Open Problems on Information and Feedback Controlled Systems
Francisco J. Cao,M. Feito +1 more
TL;DR: The state-of-the-art and the main open problems that include aspects of the redundancy of correlated operations of feedback control and the continuous operation of feedback controlled systems are presented.
Journal ArticleDOI
Three-dimensional anti-Brownian electrokinetic trapping of a single nanoparticle in solution
TL;DR: In this article, a microfluidic device with four electrodes in a tetrahedral arrangement is used to demonstrate three-dimensional (3D) trapping of an individual 40nm fluorescent nanoparticle in solution.
Book ChapterDOI
Feedback Control of Colloidal Transport
TL;DR: In this paper, a review of the literature on feedback control of one-dimensional colloidal systems with instantaneous feedback and with time delay is presented, where the feedback schemes are based on measurement of the average particle position, a natural control target for an ensemble of colloidal particles.
Journal ArticleDOI
Long-term carrier-envelope-phase stabilization of a femtosecond laser by the direct locking method
TL;DR: The direct locking method realizes the CEP stabilization in the time domain by directly quenching the beat signal from an f-to-2f interferometer and, thereby, locking every pulse to a same CEP.
Journal ArticleDOI
Reduction of magnetic field fluctuations in powered magnets for NMR using inductive measurements and sampled-data feedback control.
TL;DR: A sampled-data phase-lead-lag controller that utilizes the internal model principle to selectively attenuate magnetic field fluctuations caused by the power supply ripple and a quantitative comparison of the attenuation in temporal fluctuations afforded by the new design and a proportional control design is presented.
References
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Book
Elements of information theory
Thomas M. Cover,Joy A. Thomas +1 more
TL;DR: The author examines the role of entropy, inequality, and randomness in the design of codes and the construction of codes in the rapidly changing environment.
Book
System Identification: Theory for the User
TL;DR: Das Buch behandelt die Systemidentifizierung in dem theoretischen Bereich, der direkte Auswirkungen auf Verstaendnis and praktische Anwendung der verschiedenen Verfahren zur IdentifIZierung hat.
Journal ArticleDOI
Statistical mechanics of complex networks
TL;DR: In this paper, a simple model based on the power-law degree distribution of real networks was proposed, which was able to reproduce the power law degree distribution in real networks and to capture the evolution of networks, not just their static topology.
Journal ArticleDOI
The Structure and Function of Complex Networks
TL;DR: Developments in this field are reviewed, including such concepts as the small-world effect, degree distributions, clustering, network correlations, random graph models, models of network growth and preferential attachment, and dynamical processes taking place on networks.