Earthquake monitoring device, earthquake monitoring system and earthquake monitoring method

Abstract

The invention discloses an earthquake monitoring device which comprises a magnetic field monitoring module and a vibration monitoring module, wherein the magnetic field monitoring module is used for monitoring spatial magnetic field changes in the X direction, the Y direction and the Z direction on the earth surface, and the vibration monitoring module is provided with three vibration monitoring sensor units respectively used for detecting vibration in the X direction, the Y direction and the Z direction on the earth surface. Each vibration monitoring sensor unit comprises a base, a vibrating arm, a changing magnetic field generating device, a mounting body and a sensor chip, wherein the vibrating arm, the changing magnetic field generating device, the mounting body and the sensor chip are installed on the base; the vibrating arm is provided with a fixed end and a free end; the changing magnetic field generating device is installed at the free end of the vibrating arm and used for generating a changing magnetic field along with moving of the vibrating arm; the mounting body is provided with a clamping part and a limiting groove, the fixed end of the vibrating arm is clamped by the clamping part, and the range of movement of the free end and the range of movement of the changing magnetic field generating device are limited by the limiting groove; the sensor chip is arranged below the changing magnetic field generating device and used for detecting the changing magnetic field generated by the changing magnetic field generating device. The earthquake monitoring device is simple in structure and accurate and fast in monitoring.

Description

technical field [0001] The invention relates to an earthquake monitoring device, in particular to an earthquake monitoring device composed of a magnetic field monitoring module and a vibration monitoring module. Background technique [0002] Earthquake is a natural phenomenon that has great harm to people's lives and property. The frequency range of seismic waves caused by earthquakes is from 0.1 Hz to tens of Hz. This frequency range corresponds to the resonance frequency of buildings of different scales on the surface. It will directly affect the shaking degree of the building during the earthquake. According to the mode of propagation, seismic waves are divided into three types: longitudinal waves, shear waves and surface waves. The longitudinal wave (P wave) is a propulsion wave, and its propagation speed in the crust is 5.8-8 km / s. The longitudinal wave will reach the epicenter first, and it will cause the ground to vibrate up and down, which is less destructive. She...

AI Technical Summary

Problems solved by technology

Most of the current earthquake alarms or monitoring devices are large-scale professional equipment, which is not suitable for popularization, and earthquake prediction is still a worldwide problem, and the prediction accuracy is not high

Images