Seismic geoelectric field observation device and method

Abstract

The invention provides a seismic geoelectric field observation device, which comprises an upright column and a circuit component, wherein two ends of the upright column are respectively provided witha first electrode and a second electrode, the first electrode is provided for being placed in the air, and the second electrode is provided for being inserted underground; and the circuit component isinstalled on the upright column, and is in circuit connection with the first electrode and the second electrode and in wireless communication connection with external equipment. The geoelectric fieldobservation method comprises the steps of arranging a plurality of observation devices in a crossed mode according to the geographical east-west direction and the geographical north-south direction,receiving electric signals collected by the first electrode and the second electrode through the circuit component, transmitting the electric signals outwards through wireless communication connection, and subtracting potential difference data transmitted by any two observation devices to obtain the electric field intensity of the polar distance between the two observation devices. The observationdevice provided by the invention has a wireless transmission function with low cost, high sampling rate and longitude and latitude recording, and has very high practicability for field data observation.

Description

technical field [0001] The invention relates to a seismic geoelectric field observation device and an observation method. Background technique [0002] At present, more than 120 geoelectric field stations in my country use the ZD9 geoelectric field meter, as shown in the attached figure 1 As shown, it adopts the method of multi-channel electrode distance layout, and uses non-polarized electrodes 10. Usually, each station is arranged with long and short electrode distances in the same direction, and the short pole distance is 150m-200m long. , the long pole distance is 350-400m long, specifically, it includes five stations arranged horizontally and vertically, and there is a measuring track between any two stations, thus forming six measuring track input ports, so the arrangement of electrodes The purpose is to identify and eliminate environmental interference as much as possible and ensure the objectivity of geoelectric field observation. However, such an electrode layout ...

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Problems solved by technology

Such stations require high site conditions and high land use costs; if the vicinity of the survey area is disturbed, the observation is difficult to adjust, the flexibility is poor, and it is not convenient for mobile observation; and in order to observe the seismic signal more accurately, if the The deployment of more measuring tracks and longer polar distances (several kilometers to tens of kilometers) is impossible to achieve due to too many difficulties and too high a cost in terms of the above-mentioned observation techniques

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