Distributed high-density electrical method instrument

A high-density electrical method and distributed technology, applied in the field of geophysical exploration instruments, can solve the problems of inconvenient construction and transportation, limited cable volume, heavy cables, etc., to facilitate construction and transportation, improve delay problems, and reduce volume Effect

Active Publication Date: 2015-05-20
CHONGQING GEOLOGICAL INSTR FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of instrument requires a lot of cable cores. If there are 60 electrodes, a 60-core cable is required, which makes the cable heavy and inconvenient for construction and transportation.
When it is necessary to expand the number of electrodes, it is often limited by the volume of the cable

Method used

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  • Distributed high-density electrical method instrument
  • Distributed high-density electrical method instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0070] As a preferred implementation manner, the first electrode junction box specifically includes:

[0071] A second serial converter connected with a serial communication line, used for broadcast communication between the host and the electrode converter cable where it is located;

[0072] A switching buck connected to the power line for converting the voltage;

[0073] Wherein, the switch buck has a first output terminal and a second output terminal;

[0074] a first microcontroller connected to the second serial converter and the first output of the switching buck;

[0075] a relay connected to the second output of the switching buck;

[0076] Wherein, one end of the four switches of the relay is respectively connected to the power supply electrode A, the power supply electrode B, the receiving electrode M and the receiving electrode N, and the other ends are connected to the electrodes;

[0077] A relay driver connected to the first microcontroller.

[0078] figure...

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PUM

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Abstract

The invention discloses a distributed high-density electrical method instrument. The distributed high-density electrical method instrument comprises a plurality of electrode converter cables which are connected in series, wherein each electrode converter cable is provided with a second electrode junction box and a plurality of first electrode junction boxes; the first electrode junction boxes and the second electrode junction box in the same electrode converter cable are connected in parallel; all the electrode converter cables are connected in series; a main unit is connected with a first joint of one of the cables through a connector to achieve communication with each electrode converter cable. Thus, a communication mode in the same electrode converter cable is a broadcast communication mode, so that fewer cable cores are needed, the size of each cable is reduced, and the cables are convenient to construct and transport; under the condition of more electrodes, encoding can be conveniently carried out in a relay communication mode. Through the combination of the broadcast communication mode and the relay communication mode, the problem of time delay caused by single relay communication can be solved, and the speed of electrode switching is increased.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration instruments, in particular to a distributed high-density electrical instrument. Background technique [0002] Compared with the traditional resistivity method, the basic principle of the high-density electrical instrument is that many electrodes are arranged on the test line, and each electrode is connected to the transmitting electrode and receiving electrode of the host, and the transmitting electrode and receiving electrode are automatically switched. The control of the sensor realizes the free combination of electrodes, so that a variety of geoelectric information can be obtained with one electrode layout. [0003] The current high-density electrical instruments are mainly centralized. The centralized high-density electrical instruments connect each electrode to an electrode switcher through a bus cable. The electrode switcher is controlled by the host computer to realize autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/02
Inventor 陈健马磊张春凤王振国
Owner CHONGQING GEOLOGICAL INSTR FACTORY
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