Magnetic / Variable Reluctance Sensors  magnetic flux density
plot on gear tooth sensor Magnetic Flux Density plot on a gear
tooth modeled in AMPERES  Magnetic Field Analysis is at the
heart of many sensor systems, particularly systems with large
air gaps.  These applications can be easily modeled using
MAGNETO (if 2D or Rotational Symmetric) or AMPERES (where full
3D analysis is required).  Both programs provide a complete
range of analysis options including field plots, flux linkage
and inductance calculations. Force, torque, power loss and
stored energy can also be calculated.  In the case of LVDT
sensors, Usually OERSTED (2D/RS) or FARADAY (3D Simulation) will
be required because of eddy currents induced in the sensor
components. If the sensor is composed of ferrite and/or
laminated materials, MAGNETO (2D/RS) or AMPERES (3D Simulation)
should be sufficient.  Find the best solver for your sensor
application