HEEJU CHOI Avatar

HEEJU CHOI

Sr. Project Lead Engineer

Dr. Choi has extensive experience in the design and control of electromechanical systems over 20 years. The particular topics of expertise are quadrupole magnets for proton therapy, mass spectrometer, magnetic separator, high temperature motor/generator, high temperature magnetic bearing, eddy...
See More

experience

Sr. Project Lead Engineer  
Electron Energy Corporation, January 2016 to Present, Landisville United States

a. Serve as a key technical leader of EEC Technology Center and lead the design and development efforts of permanent magnet systems from concept through production by collaborating with Engineering, Manufacturing, Sales and Marketing. b. Provide technical leadership in design and development efforts related to magnetic components and/or system design, from planning through testing, including create Statement of Work, define technical needs, generate design concepts and prototypes, perform design evaluations (such as stress analysis, FEA, field testing, etc.), and develop product validation and verification plans and testing as required by the customer.

Sr. Applications Engineer  
Electron Energy Corporation, July 2005 to December 2015, landisville United States

a. Coordinate prototyping efforts related to magnetic components and/or system design for customers. This includes design optimization using finite element analysis (FEA), mechanical drawings using SolidWorks, BOM review, manufacturing router review, working with other employees to complete the prototypes, and inspecting the final products. b. Participate in both obtaining and supporting work associated with Government-funded research programs on magnet-related applications such as motors/generators, PM couplers, magnetic bearing, and TWT. This would include identifying opportunities, establishing partnerships, writing proposals, and leading the research effort once awarded, in order for the research funds and development of new magnet applications. c. Support the sales team by representing EEC’s technical capability for customized magnet application. This includes phone consultations, customer visits, design assistance, FEA, and promotion of EEC specialty magnets and systems. d. Provide the basic education and training (ANSYS Maxwell, Vector Field Opera, SolidWorks, Matlab) for entry level engineers and other employee for the purpose of cross-training.

education

North Carolina State Univ  
Doctor of Philosophy, Mechanical Engineering, Aug, 2001 to May, 2005
a. Lead a funded magnetic bearing (MB) project: planning, acquisitions, research, and deliverables. b. Combine aspects of multivariable robust control and neural networks to obtain synergistic results. c. Validate experimentally ANSYS modeling, identification, and control of a flexible rotor MB system.

Certifications

  • IEEE Senior Member
     (41444159)
    September 2017
  • ASME Member
     (0000008732091)
    September 2005