Instrument for exploring fractures and cavernouse formation

A detector and stratum technology, applied in the field of shallow stratum crack and hole detector, can solve the problems of inconvenient comprehensive analysis, reduced work efficiency, inconvenient portability, etc., to improve measurement accuracy and anti-interference ability, improve accuracy and resolution, The effect of volume and weight reduction

Inactive Publication Date: 2005-10-12
中国人民解放军沈阳军区司令部工程科研设计所
0 Cites 5 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0003] 1. Because it adopts a centralized electrode changeover switch, not only the weight and volume of the changeover switch are huge, but also each acquisition terminal has one cable and ten electrodes. It is bulky and inconvenient to carry, and it is not easy to quickly survey under complex condit...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Method used

1, it also has distributed electrode change-over switch, and it connects several switches each other into a string by serial cable, referring to Fig. 4,5, the composite cable in Fig. 5 is 9 cores, and A, B are power supply lines M and N are the measurement wire groups, that is, the electrodes, 1 is the inner shielding layer, 2 is the outer shielding layer, 3 is the data communication twisted wire group, and 4 is the switch power supply wire group. In order to solve the problem of receiving the command signal sent by the instrument host and automatically selecting the address, an interface circuit for transmitting commands is designed. The circuit adopts the serial output mode. The host computer makes serial changes to the instructions through the interface circuit, and then the output circuit makes the level increase to form the DATA data stream, CLOCK clock and ENABLE function, and outputs the SCI serial data stream to each Electrode switch. The characteristic of this interface circuit is that it does not need to judge the number of each switch box itself, but only determines its position according to the arrangement sequence, thus achieving the purpose of automatic site selection. At the same time, the electrical structure of the distributed electrode switch adopts large-scale integrated circuit technology and is processed by patch packaging technology, so that the volume of a single switch is reduced to φ15×110mm. In addition, a special composite cable for anti-interference has been developed as a serial connection cable for distributed electrodes. In order to...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

A detector of crack opening or hole at shallow stratum is featured as applying distributed electrode change - over switch, using serial cable to connect those switches and to make them a string for combining switch box and cable to be an unified body, applying industrial control computer as a host, integrating the computer and collection motherboard to be unified body for not only storing data but also carrying out data processing and imaging on jobsite.

Application Domain

Technology Topic

Serial cableProfile analysis +6

Image

  • Instrument for exploring fractures and cavernouse formation
  • Instrument for exploring fractures and cavernouse formation
  • Instrument for exploring fractures and cavernouse formation

Examples

  • Experimental program(1)

Example Embodiment

[0021] It is composed of host, electrode, power supply and cable, and its characteristics are:
[0022] 1. It also has a distributed electrode transfer switch, which connects several switches to each other into a string through a string cable, see Figure 4 , 5 , Figure 5 The composite cable in is 9 cores, A and B are power supply line groups, M and N are measurement line groups, that is, electrodes, 1 is the inner shielding layer, 2 is the outer shielding layer, and 3 is the data communication twisted wire group. 4 is the switch power supply line group. In order to solve the problem of receiving and automatic address selection of the command signal sent by the instrument host, an interface circuit for transmitting the command is designed. The circuit adopts the serial output mode. The host computer changes the instructions serially through the interface circuit, and then through the output circuit for level elevation, the DATA data stream, CLOCK clock and ENABLE function are formed, and the SCI serial data stream is output to each Electrode switch. The characteristic of this interface circuit is that there is no need to judge the number of each switch box itself, and its position is only determined according to the sequence of arrangement, thus achieving the purpose of automatic location selection. At the same time, the electrical structure of the distributed electrode switch adopts large-scale integrated circuit technology and is processed with chip packaging technology to reduce the volume of a single switch to φ15×110mm. In addition, a special composite cable for anti-interference was developed as a series connection cable for distributed electrodes. In order to solve the problem of serious interference between the high-voltage power supply line, measurement line, digital communication line and power line in the cable, a double-layer shielding is designed in the line, in which the AB power supply line is shielded by aluminum film, and the entire cable is aluminum film Add braided bare wire shielding. The outer skin is made of anti-aging polybutylene chloride material, which has a high degree of insulation. In this way, the cable and the electrode transfer switch are integrated, which is both a cable and a switch, which greatly reduces the weight and volume;
[0023] 2. The said host selects a high-performance industrial computer with large memory and fast data processing as the main processor, and designs a control acquisition interface circuit associated with the parallel port of the computer, so that the computer can output control instructions to the main control through the parallel port The main control board decodes and controls the work of each part of the board. The main control board sends the collected V and I signals to the computer through the interface, and the computer performs calculation, processing, and graphing.
[0024] 3. In order to display the resistivity chromatogram of the geoelectric structure in real time, inversion imaging is a focus of this research. We applied the RES2DINV high-density resistivity data inversion program to effectively solve this problem. It uses the quasi-Newton optimization (Loke and Barker1996) least squares technique, which is more than 10 times faster than the conventional least squares method, and can adjust the damping coefficient and smoothing filter coefficient to meet the needs of different models.
[0025] 4. In order to meet the needs of different detection targets and improve the accuracy and resolution of the measurement work, the instrument has added a high-density dual-frequency IP method. This method solves geological problems by measuring the dispersion rate of the secondary field. To effectively measure the frequency dispersion rate of the secondary field, it is necessary to solve the interference problem between the high-voltage power supply wire and the measurement wire, and improve the anti-interference ability of the instrument. Through the improvement of the instrument circuit and the optimized selection of electronic components, we have improved the measurement accuracy and anti-interference ability of the instrument. The distributed electrode switch and double shielded cable that have been developed have overcome the interference between the lines, so that the instrument can accurately measure To the weak secondary field, high-density dual-frequency IP measurement function can be realized.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Motor temperature acquisition device and vehicle

ActiveCN105406651AWide temperature measurement rangeImprove resolution and accuracyStructural associationImage resolutionEngineering
Owner:BEIJING ELECTRIC VEHICLE

Tower crane using giomagnetic sensor

InactiveCN1944225AEasy installationImprove resolution and accuracyCranesLoad-engaging elementsImage resolutionEngineering
Owner:SHANGHAI STEP ELECTRIC +1

Circuit breaker on-line detection sensor

ActiveCN103411526ASimple structureImprove resolution and accuracyUsing electrical meansControl theoryCircuit breaker
Owner:GUODIAN NANJING AUTOMATION

Classification and recommendation of technical efficacy words

  • Improve resolution and accuracy
  • Improve anti-interference ability

Haplotype map of chromosome span, and construction method thereof

ActiveCN105046105AComprehensive sequencing dataImprove resolution and accuracySpecial data processing applicationsDNA/RNA fragmentationSequencing dataChromatophore
Owner:天津诺禾医学检验所有限公司

Motor temperature acquisition device and vehicle

ActiveCN105406651AWide temperature measurement rangeImprove resolution and accuracyStructural associationImage resolutionEngineering
Owner:BEIJING ELECTRIC VEHICLE

Circuit breaker on-line detection sensor

ActiveCN103411526ASimple structureImprove resolution and accuracyUsing electrical meansControl theoryCircuit breaker
Owner:GUODIAN NANJING AUTOMATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products