Simulation research on burst method for excitation of resonant sensors

A novel operation method of resonant sensors is presented. The chirp signal was used to excite the resonator. When the excitation was shut down, the resonator would do free vibration with its resonant frequency. The free vibration frequency just is the resonant frequency of the resonator. So, the resonant frequency of the resonator could be measured by measuring the free vibration frequency. The free vibration magnitude of the resonator lie on the capacity of the resonator storing energy in the state the resonator excited. The storing energy capacity of the resonator excited by sine wave was compared with chirp signal. The simulation results show the burst operation method that of resonant sensors can be realized with chirp signal exciting.