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 Expert  729651

Expert in Permanent Magnet Motors, Generators, Devices and Materials

Available for your Consulting and Expert Witness Needs

North Carolina (NC)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise: Listed with other top experts in: 
Expert's primary expertise is in magnetic circuit design and analysis, with more than 25 years of both theoretical and hands-on experience in permanent magnet manufacturing and electric motor/electromagnetic device design and manufacturing. Expert has special expertise in the design and analysis of high-performance permanent magnet motors, generators, field sources, actuators and sensors for use in Power Generation, Mil/Aerospace, Medical, Automotive, Power Tool, Appliance and Commercial/Industrial applications.

Expert has authored several lucrative linear motor patents and is a seasoned trainer and lecturer on permanent magnet materials and applications and electric motors and generators. Expert also has special expertise in both rare-earth and ferrite permanent magnet materials.

Expert worked under the guidance, supervision and tutelage of a rare-earth permanent magnet pioneer at a U.S. university from 1982-1985. He further developed his expertise in rare-earth magnets as a Senior Scientist for a melt spinner / powder manufacturer. As a Senior Applications Engineer for a number of employers, Expert has also done considerable work on the design, analysis and costing of ceramic ferrite permanent magnets and ferrite permanent-magnet motors.


electromagnetic field






ferrite permanent-magnet motor




magnet design


magnetic field


magnetic field theory




permanent magnet direct current brushless motor


permanent magnet machine


permanent-magnet generator


permanent-magnet motor


permanent-magnet synchronous motor


permanent-magnet testing


rare-earth magnet


rare-earth magnetism


rare-earth permanent magnet


ceramic magnet


permanent magnet

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Raleigh, North Carolina;  Greensboro, North Carolina;  Durham, North Carolina;  Winston Salem, North Carolina;  Fayetteville, North Carolina;  Cary, North Carolina;  High Point, North Carolina;  Greenville, North Carolina;  Rocky Mount, North Carolina;  and Lynchburg, Virginia.

Often requested
with this expert:

Electric Motors, Generators, Wind Energy, Voltage...
Powder Metallurgy, Magnetic Alloy
Permanent Magnets, Rare Earth Metals, Technical Training...
Motor and Generator Design and Development

Year   Degree   Subject   Institution   Honors
1985   MS   Electrical Engineering   University of Dayton   Summa Cum Laude
1984   BS   Electrical Engineering   University of Dayton   Summa Cum Laude, University Honors Program

Work History:
Years   Employer   Department   Title   Responsibilities

2009 to


Expert's Firm





He provides expert design and analysis of electric motors and generators, magnetic bearings, magnetic couplings, magnetic field sources and specialty electromagnetic devices. His primary emphasis is on the following areas: a. custom permanent-magnet motors for pumps, compressors, refrigerators, electrical drive systems, fans, medical devices and power tools; b. custom electric generators for wind turbines, uninterruptible power supplies and remote power systems; c. electromagnetic actuators for optical systems (moving mirrors) and precision valve control; and d. training on permanent magnet materials and applications and electric motors and generators.

2004 to 2009


Energy Conversion Systems/Kane Magnetics



Senior Engineer for Permanent Magnet Applications


He provided expert design, analysis and technical support to existing customers and new business opportunities. He performed magnetic circuit analysis using finite-element analysis (FEA) and analytical formulae to optimize performance and minimize cost of permanent magnet motors and sensors. He developed permanent magnet motors and generators, including 25kW and 100kW PM generators, and he designed permanent magnet motors and sensors as a value-added service to customers and to facilitate permanent magnet sales. Expert performed electromagnetic testing and expert failure analysis, also as a value-added customer service. He designed magnetization systems, performed design-to-cost studies for high-volume automotive and power tool customers, and provided initial gate review for all incoming magnet quotation requests, reporting directly to the VP of Sales. Expert determined costing for all quoted magnets and magnet assemblies, and he generated quotations to the customer. Expert gave tutorial presentations on magnetic materials and testing, magnetic circuit design, applications of magnetic materials, electric motors and generators at customer sites, industry trade shows and for the IEEE.

1999 to 2004




Technology Center


Senior Scientist


Expert provided expert design, analysis and technical support to existing customers and new business opportunities. He designed permanent magnet generators for wind turbine systems, and he performed technical & marketing studies to analyze and predict the demand for permanent magnet in various applications. Expert developed design strategies for replacing low-margin ferrite magnets with higher-margin bonded and sintered NdFeB in high-volume motor and sensor applications. These strategies have been successful in the power tool, appliance and automotive sectors. He performed magnetic circuit analysis, motor and sensor design, electromagnetic testing and expert failure analysis as a value added service to customers and to facilitate magnet sales. Expert set up the state-of-the-art magnet applications lab in the Magnequench Technology Center, featuring magnetic test fixtures, dynamometers, force and torque measurement systems, multimeters, oscilloscopes and coil winding machines. He wrote technical articles for automotive, appliance, motor and motion control industry trade magazines.

1989 to 1999


BEI Motion Systems


Kimco Magnetics Division


Director of Engineering


Expert was responsible for the design, analysis, and documentation of company's product lines: linear voice coil and moving magnet motors, DC brushless motors and drivers, magnetic bearings, clutches and brakes. He guided the technical growth of company from less than $2M (1989) to nearly $20M (1998) in sales with no increase in Engineering Department personnel. He authored two linear motor design patents which continue to generate $500k - $1M/year in income for BEI. Expert performed all of the company's finite element analysis and earned an average of $100k/year for BEI with design studies. He was the supervisor of 3 mechanical designers and 2 engineers in the Engineering Department, and he oversaw evolution of the company's computer network and engineering hardware and software tools (CAD, FEA, office network and applications). Expert specified and procured manufacturing and test equipment to allow company's growth and expansion, and he interfaced with customers and government agencies for proposals, technical reviews and quality assurance. He participated in strategic planning, quotations, scheduling, sales and marketing, and he wrote technical articles for motor/motion control industry trade magazines.

1986 to 1989


Hughes Aircraft


Electron Dynamics Division


Member Technical Staff


Expert performed design, analysis, manufacturing and testing of traveling wave tubes (TWT's). He performed magnetic, electrical and thermal analysis of TWT components and systems using finite element analysis (FEA) and other computer-aided numerical methods. He served as the company specialist in permanent magnet materials and electromagnetic FEA as applied to magnetic focusing of electron beams. He wrote reports, proposals, white papers and test plans.

1983 to 1985


University of Dayton


Magnetics Laboratory


Graduate Student Researcher


Expert worked under the guidance, supervision and tutelage of a rare-earth permanent magnet pioneer from his sophomore undergraduate year through completion of his MSEE degree. He performed computer-aided design and analysis of a wide variety of permanent magnet circuits as part of his MSEE thesis work under tutelage of Dr. Herbert Leupold (US Army ET&DL). Expert designed and analyzed several novel magnetic electron-beam-focusing circuits for use in klystrons, TWT's, wigglers, undulators and free-electron lasers. He participated in the development, fabrication and testing of various high-energy rare earth permanent magnet alloys in the world's foremost magnetics laboratory and computerized their laboratory test procedures.

Career Accomplishments:

IEEE, Tau Beta Pi

Publications and Patents Summary

He has 20 publications and 3 patents relating to permanent magnet motors and generators.

Consulting Services:
Recent Client Requests:
  • Magnet Test expert for consulting on Magnet "Decodeing".
  • Magnetostatics expert for consulting on Highly homogeneous permanent magnet array design evaluation and optimization.
  • Expert in electrical generator design for consulting on Evaluation of a design of a permanent magnet generator for electrical power generation.
  • Expert in zirconium-based oxygen sensor for consulting on design and performance optimization.
  • Expert in Linear Glide Bearings for EM Solenoids & Actuators.
  • Expert for consulting on Magnetic Calculations *KR
  • Expert in AC Synchronous motor design.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Expert for consulting on rotor pole defects in litigation.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Foreign Language   Description
German   He is proficient in conversational German and is semi-proficient in technical German.

Market Research:
Expert is an expert on the rare-earth magnet industry.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert provides training and seminars on the topics of magnetic materials and testing, magnetic circuit design, the applications of magnetic materials, electric motors and generators.

Supplier and Vendor Location and Selection

Expert can assist in finding vendors and sources of permanent magnets and electric motors.


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