Earthquake monitor

Abstract

The invention relates to an earthquake precursor monitor capable of measuring and reporting earthquake information according to natural electromagnetic wave field sources, which is composed of a sensor, a preamplifier, a low-pass filter, a 50Hz active filter, a frequency-selective amplifying detector and A / D conversion data acquisition It is composed of a storage transmitter, etc., and the sensor is composed of a plurality of flat capacitive sensors. In actual work, multiple monitoring instruments separated by a certain distance from each other receive the electromagnetic waves before the earthquake from the source area and reflect back to the surface through different electrical interfaces in the ground, convert this electromagnetic wave into a voltage signal, and then compare the voltage values ​​in different directions By performing vector synthesis, it is possible to calculate the azimuth of each station where the future earthquake will be located. Through the intersection of multiple stations, the ground position, time of earthquake occurrence and magnitude of the earthquake in the future can be obtained.

Description

technical field [0001] The content of the present invention belongs to the technical field of measuring instruments for electromagnetic variables, and relates to a geophysical detection device, in particular to an earthquake precursor monitoring device for measuring and reporting earthquake information based on natural electromagnetic wave field sources. Background technique [0002] Historically, the activities of various geological structures, such as ground fissures, ground deformation, ground uplift or decline, folds, faults and joints, are all related to the action of ground stress, and the most obvious phenomenon is earthquakes. Some modern large-scale engineering and construction projects such as mines, tunnels, dams, bridges, etc. are also directly affected by the in-situ stress field. As far as tectonic earthquakes are concerned, earthquakes are the product of cracking and dislocation of rocks in the earth's crust under the action of in-situ stress, and when rocks b...

AI Technical Summary

Problems solved by technology

However, the natural electromagnetic wave monitored by the earthquake precursor instrument recorded the same electromagnetic wave signal inside and outside the zero magnetic space laboratory. According to the analysis results before the experiment: when monitoring in the zero magnetic space laboratory, the information recorded by the instrument should be a The data of a straight line should be a certain constant data, but the experimental results are not like this. Obviously, the traditional electromagnetic wave theory cannot explain the results of the natural electromagnetic wave experiment monitored by the earthquake precursor instrument.

[0004] In addition, various earthquake prediction devices and methods developed based on the traditional definition of electromagnetic waves at home and abroad are currently making very slow progress in the research of short-impending predictions.

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