Synchronization mechanism within the blind zone of the differential resonant accelerometer

Within the range of the differential resonant accelerometer, a blind zone
exists that leads to nonlinearity, noise, and zero output, thereby
introducing uncertainty and degrading performance. Exploration of the
underlying synchronization mechanism leads to an understanding of this
uncertainty. In this study, the Huygens pendulum model was employed to
explain how both anti-phase and in-phase synchronization coexist and
transfer between each other, where jumps occur stemming from the different
configurations of the potential wells of the resonator. Noise increase,
attributed to phase slip, was observed before and after synchronization,
potential to be utilized to detect shocks in the surroundings.
Consequently, the entire process of synchronization within the blind zone
was verified, and the frequency stability, bias instability and resolution
of the accelerometer were greatly improved.