Oscillating-beam magnetometer

Details Oscillating-beam magnetometer Oscillating-beam magnetometer

2008-09-30

2008-09-30

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

C331S065000

Reexamination Certificate

active

11391538

ABSTRACT:
In one embodiment, an integrated magnetometer has a deformable, electrically conducting beam that is mounted on a substrate and adapted to oscillate with respect to the substrate. When the oscillating beam is exposed to a magnetic field, the magnetic field induces an oscillating electromotive force that generates an oscillating electrical signal along the beam. The magnetometer has a detection circuit that detects this oscillating electrical signal and, based on the results of this detection, determines the magnetic-field strength and/or the magnetic-field gradient.

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“Theory of Amplifier-Noise Evasion in an Oscillator Employing a Nonlinear Resonator,” by B. Yurke et al., Physical Review A, May 1995, vol. 51, No. 5, pp. 4211-4229.

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