| Xylophone bar magnetometer | |
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| Browse model files | |
Additional information
This is a 3D, multiphysics
model of a MEMS magnetometer, coupling electromagnetic (electrokinetic),
mechanichal (elastic) and thermal models. To run the model, open
magnetometer.pro with Gmsh.
When an alternating current flows through it, the magnetometer starts to vibrate
if it is placed in a magnetic field. The amplitude of the vibration can be used
to measure the magnetic field. To increase sensitivity, the frequency of the
current is tuned to excite a resonant mode of the xylophone-type
structure. Several analyses are predefined: uncoupled modal analysis of the
structure (Eigenmodes) and calculation of the current flow
(Electrokinetics), static and dynamic electro-mechanical analysis
(Electro-mechanical), and coupled electro-thermal analysis
(Electro-thermal).
| Model developed by V. Rochus, I. Niyonzima, @geuzaine |