次声波检测装置的研制

Infrasound is a signal worth studying in the field of information. The acquisition of acoustic information requires a corresponding detection device. This paper introduces the principle, character analysis and signal processing methods of infrasound based on a kind of capacitive infrasound sensor. This paper introduces a intelligent infrasound detection device at the core of 89S51, and gives the design of hardware and software system based on a kind of capacitive sensor in detail. The detection device can be applied to natural disasters and environmental infrasound detection and research for its simple structure, high sensitivity, and strong interference.