Resonant Magnetic Field Sensors Based On MEMS Technology
AbstractMicroelectromechanical systems (MEMS) technology allows the integration of magnetic field sensors with electronic components, which presents important advantages such as small size, light weight, minimum power consumption, low cost, better sensitivity and high resolution. We present a discussion and review of resonant magnetic field sensors based on MEMS technology. In practice, these sensors exploit the Lorentz force in order to detect external magnetic fields through the displacement of resonant structures, which are measured with optical, capacitive, and piezoresistive sensing techniques. From these, the optical sensing presents immunity to electromagnetic interference (EMI) and reduces the read-out electronic complexity. Moreover, piezoresistive sensing requires an easy fabrication process as well as a standard packaging. A description of the operation mechanisms, advantages and drawbacks of each sensor is considered. MEMS magnetic field sensors are a potential alternative for numerous applications, including the automotive industry, military, medical, telecommunications, oceanographic, spatial, and environment science. In addition, future markets will need the development of several sensors on a single chip for measuring different parameters such as the magnetic field, pressure, temperature and acceleration.
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Herrera-May, A.L.; Aguilera-Cortés, L.A.; García-Ramírez, P.J.; Manjarrez, E. Resonant Magnetic Field Sensors Based On MEMS Technology. Sensors 2009, 9, 7785-7813.
Herrera-May AL, Aguilera-Cortés LA, García-Ramírez PJ, Manjarrez E. Resonant Magnetic Field Sensors Based On MEMS Technology. Sensors. 2009; 9(10):7785-7813.Chicago/Turabian Style
Herrera-May, Agustín L.; Aguilera-Cortés, Luz A.; García-Ramírez, Pedro J.; Manjarrez, Elías. 2009. "Resonant Magnetic Field Sensors Based On MEMS Technology." Sensors 9, no. 10: 7785-7813.