David Meeker, Ph.D.
Experience 
Principal Scientist Current Projects:
Completed Projects Include:
Design and analysis of novel electric machines. Projects included:
Design and analysis of novel electromechanical machines; Design and implementation of multiple input/multiple output controllers. While at SatCon, work included:
While at the University of Virginia, work included:

Education 
Doctor of Philosophy, Mechanical and Aerospace
Engineering, May 1996 Dissertation: Optimal solutions to the inverse problem in quadratic magnetic actuators. Abstract: The formulation of currenttoforce relationships for magnetic actuators proceeds in a fairly straightforward fashion from Maxwell's equations for magnetostatic problems. However, the inverse problem of determining a set of currents to realize a desired force is less well understood. Historically, this problem has been relatively neglected because actuators were built in symmetric geometries where a viable solution could be intuited. Recently, calls for both optimal actuator performance and fault tolerance have necessitated the formulation of general solution methodologies for magnetic actuators. This work will consider such formulations for magnetic actuators whose currenttoforce relationships are homogeneous quadratics. This class of actuators includes active magnetic bearings and the magnetic stereotaxis system. Advisor: Eric H. Maslen Master of Science, Mechanical and Aerospace Engineering, May 1993 Advisor: Eric H. Maslen Bachelor of Science, Mechanical Engineering, May 1990 Cum Laude 
D.C. Meeker, "A Generalized Unbiased Control Strategy for Radial Magnetic Bearings," Actuators, 6(1):1, Jan. 2017. D.C. Meeker, "SeriesWound Heteropolar Inductor Motor for Automotive Applications," IEEE Transportation Electrification Conference (ITEC 2016), Dearborn, MI, June 2729, 2016. [Poster] D.C. Meeker, "Improvised asymptotic boundary conditions for electrostatic finite elements," IEEE Transactions on Magnetics, 50(6):7400609, June 2014. D.C. Meeker, "Doubly Salient Synchronous Generator for Gas Turbine Engines," Electric Machines Technology Symposium (EMTS 2014), Villanova, PA, May 2829, 2014. D.C. Meeker,
"Improvised open boundary conditions for magnetic finite elements," IEEE Transactions on Magnetics, 49(10):52435247, Oct. 2013. D.C. Meeker, "An improved continuum skin and proximity effect model for hexagonally packed wires," Journal of Computational and Applied Mathematics, 236(18):46354644, Dec. 2012. http://dx.doi.org/10.1016/j.cam.2012.04.009 D.C. Meeker and M. J. Newman, "Indirect vector control of a redundant linear induction motor for aircraft launch," Proceedings of the IEEE, 97(11):17681776, Nov. 2009. D.C. Meeker and E.H. Maslen, "Analysis and Control of a Three Pole Radial Magnetic Bearing," Tenth International Symposium on Magnetic Bearings, Martigny, Switzerland, Aug. 2006. D.C. Meeker, A.V. Filatov, and E.H. Maslen, "Effect of Magnetic Hysteresis on Rotational Losses in Heteropolar Magnetic Bearings," IEEE Transactions on Magnetics, 40(5):33023307, Sept. 2004. J. Dill and D. Meeker, Maglifter tradeoff study and subscale system demonstrations, NASA report NAS980691362, Dec. 2000.
D.C. Meeker and E. H. Maslen, "Prediction of rotating losses in heteropolar radial magnetic bearings," Journal of Tribology, 120(3):629635, July 1998. D. C. Meeker, E. H. Maslen, and M. D. Noh, "An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage," IEEE Transactions on Magnetics, 32(4):32193227, July 1996. D. C. Meeker, E. H. Maslen, R. R. Ritter, and F. M. Creighton, "Optimal realization of arbitrary forces in a magnetic stereotaxis system," IEEE Transactions on Magnetics, 32(2):320328, March 1996. E. H. Maslen and D. C. Meeker, "Faulttolerance of magnetic bearings by generalized bias current linearization," IEEE Transactions on Magnetics, 31(3):23042314, May 1995. D. C. Meeker and M. A. Townsend, "Motions of a powered top with a spherical tip on a curved surface," Shock and Vibrations Journal, 2(1):2332, Jan. 1995. [exe] D. C. Meeker and D. M. Dozor, "Thermomagnetic optimization of solenoidal magnetostrictive actuators," SPIE 6th Annual International Symposium on Smart Structures and Materials, Newport Beach, CA, March 1999. D. C. Meeker, E. H. Maslen, and M. Kasarda, "Influence of actuator geometry on rotating losses in heteropolar magnetic bearings," Sixth International Symposium on Magnetic Bearings, Cambridge, MA, Aug. 1998. D. C. Meeker and E. H. Maslen, "A thin plate model of rotating losses in magnetic bearings," Fifth International Symposium on Magnetic Bearings, Kanazawa, Japan, Aug. 1996. D. C. Meeker and E. H. Maslen, "Power optimal solution of the magnetic inverse problem for heteropolar magnetic bearings," Fifth International Symposium on Magnetic Bearings, Kanazawa, Japan, Aug. 1996. D. C. Meeker, E. H. Maslen, and M. D. Noh, "A wide bandwidth model for the electrical impedance of magnetic bearings," Third International Symposium on Magnetic Suspension Technology, Tallahassee, FL, Dec. 1315, 1995. E. H. Maslen and D. C. Meeker, "Bias linearization and decoupling for active magnetic bearings: a generalized theory," Fourth International Symposium on Magnetic Bearings, Zurich, Switzerland, 1994. D. C. Meeker and M. A. Townsend, "Motions of a powered top with a spherical tip on a curved surface," ASME Winter Annual Meeting, New Orleans, LA, 1993. 

Patents 
US9347972: Alternate voltage sensing method for increased weather robustness of ungrounded power line sensors. Inventors: Meeker, D.; Compter, B. Assignee: FosterMiller. Filing Date: March 25, 2013 US9293952: Wound field flux switching machine with sinusoidal back electromotive force. Inventor: Meeker, D. Assignee: FosterMiller. Filing Date: March 25, 2013 US9347976: Hot Stick Power Analyzer. Inventors: Mason, T.; Meeker, D; Godfrey, J; Travis, J; Leary, W; Post, A Assignee: FosterMiller. Filing Date: October 23, 2013 US9027454: Ground Pressure Detonation Device. Inventors: Wiesman, R; Kirouac, A; Meeker, D; Berglund, J; Tavernini, M. Assignee: FosterMiller. Filing Date: October 25, 2012 US2005/0147512: Rotary pump with electromagnetic LCR bearing. Inventors: Chen, Hsiang Ming; Smith, William A.; Vitale, Nicholas G.; Chapman, Peter A. JR.; Donahue, Arthur C.; Meeker, David C. Assignees: FosterMiller, Inc.; The Cleveland Clinic Foundation. Filing Date: July 7, 2005 US6097124: Hybrid permanent magnet/homopolar generator and motor. Inventors: Rao, Gita P.; Kirtley, James L.; Meeker, David C.; Donegan,Kevin J. Assignee: Satcon Technology Corporation. Filing Date: August 1, 2000 
Affiliations 
Member, Institute of Electrical and Electronics Engineers 