Mechanism of a Hair Cell Bioinspired Sensor with Ultrasensitivity to Weak and Low Frequency Vibration Signals

摘要: Although significant progresses have been made in sensor technology, it is still a challenging task to develop ultrasensitive sensors monitor very weak and low frequency vibration signal for early warning of natural disasters efficient structural health monitoring infrastructures. It has reported from previous experiments that some fishes acute sensitivities extremely linear acceleration due the otolith organs inner ear. In this paper, based on experimental results qualitative mechanism infrasound sensitivity conducted by other researchers, bioinspired gating spring model with negative stiffness established simulate mechanical-electricity transduction hair cell fish Then, numerical analyses mechanical subject static dynamic loading are conducted, respectively. shown adaptive amplification capability excitation compared corresponding model. This can be used design signal.