Entechna Engineering

Design:
  • Statically determined design, thinking in degrees of freedom.
  • Designs optimized for position accuracy and stability;
    • No friction, no play, low hysteresis.
    • Use of thermal centre, thermal length compensation.
    • Separate force frame and metrology frame.
    • Stiffness compensation, weight compensation.
  • Mechanisms based on elastic elements.
  • Designs optimized for dynamical performance (low mass, high stiffness).
  • Electromagnetics;
    • Actuator design (Lorentz, reluctance type).
    • Magnetic bearings.
  • Dimensional metrology principles.
  • Design for high voltage, ultra-high vacuum and extreme temperatures
  • Low-magnetic and non-magnetic constructions and mechanisms.
  • Understanding of optics, control, electronics and mechatronics.
Analysis:
  • Mechanics (stress, strain, fatigue / lifetime).
  • Dynamical behaviour (using lumped-mass reduction models).
  • Position accuracy prediction (using lumped-mass models, Wittgen method).
  • Magnetic circuit analysis.
  • Steady-state thermal modelling.
  • Thermo mechanical stability estimation.
  • Fluid cooling system analysis (pressure drop, heat transfer).
  • Finite Element Analysis (static, dynamic, thermal).
Other:
  • System engineering approach: identify and focus effort on critical issues or components only – wasting no time on details or solving symptoms.
  • Effective communication (verbally or in to-the-point presentations or concisely written reports).
  • Customer oriented, cost aware.
  • Open minded, critical, creative and constructive attitude.
  • Experience in all design phases: from concept design to final design, manufacturing support, testing and final acceptance / delivery.