High-sensitivity microphone based on quartz crystal resonator

The invention discloses a high-sensitivity microphone based on a quartz crystal resonator, which is on the basis of a force-frequency effect of the quartz crystal resonator, that is, if an oscillator of the quartz crystal resonator is subjected to the effect of a force or strain, the resonant frequency of the resonator changes in a linear manner along with changes of the force. The core of the invention is that a vibration diaphragm generates vibrations according to the size of pressure and different frequencies when being subjected to the pressure of sound waves, the vibration is converted into strain through a mechanical structure and acts on a quartz crystal, the quartz crystal resonator is enabled to generate frequency deviation so as to accomplish sound-electricity conversion, a vibration parameter of the diaphragm can be acquired through measuring the frequency deviation, and transmitted sound wave information can be further acquired. The microphone disclosed by the invention has the characteristics of