| Planar Steering of a Single Ferrofluid Drop by Optimal Minimum Power Dynamic Feedback Control of Four Electromagnets at a Distance. | |
| | |
MedLine Citation:
|
PMID: 21218157 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Any single permanent or electro magnet will always attract a magnetic fluid. For this reason it is difficult to precisely position and manipulate ferrofluid at a distance from magnets. We develop and experimentally demonstrate optimal (minimum electrical power) 2-dimensional manipulation of a single droplet of ferrofluid by feedback control of 4 external electromagnets. The control algorithm we have developed takes into account, and is explicitly designed for, the nonlinear (fast decay in space, quadratic in magnet strength) nature of how the magnets actuate the ferrofluid, and it also corrects for electro-magnet charging time delays. With this control, we show that dynamic actuation of electro-magnets held outside a domain can be used to position a droplet of ferrofluid to any desired location and steer it along any desired path within that domain - an example of precision control of a ferrofluid by magnets acting at a distance. |
| | |
Authors:
|
R Probst; J Lin; A Komaee; A Nacev; Z Cummins; B Shapiro |
Related Documents
:
|
18791267 - Emerging roles for contrast-enhanced ultrasound. 20172807 - 3-d visualization of acute rf ablation lesions using mri for the simultaneous determina... 19418557 - Navigator respiratory-triggered diffusion-weighted imaging in the follow-up after hepat... 16001137 - Ct mapping of the distribution of saline during radiofrequency ablation with perfusion ... 2713617 - The "plain film" bladder shadow in outflow obstruction: as accurate a discriminant of r... 17260387 - Balanced ssfp imaging of the musculoskeletal system. |
Publication Detail:
|
Type: JOURNAL ARTICLE |
Journal Detail:
|
Title: Journal of magnetism and magnetic materials Volume: 323 ISSN: 0304-8853 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
|
Created Date: 2011-1-10 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101314425 Medline TA: J Magn Magn Mater Country: - |
Other Details:
|
Languages: ENG Pagination: 885-896 Citation Subset: - |
Affiliation:
|
Fischell Department of Bio-Engineering, 3178 Martin Hall, University of Maryland, College Park, MD 20742. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
| Grant Support | |
ID/Acronym/Agency:
|
R21 EB009265-01A2//NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Synthesis and antimicrobial studies of silver N-heterocyclic carbene complexes bearing a methyl benz...
Next Document: A 3-D Framework for Arterial Growth and Remodeling in Response to Altered Hemodynamics.