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A Pipeline Radar Antenna for Damage Detection of Electric Power Pipes

A technology of damage detection and power pipe arrangement, which is applied in the direction of antenna, antenna array, antenna grounding switch structure connection, etc., can solve the problems of only centimeter level, low frequency, and inability to fit pipe walls, etc., to solve signal attenuation, High detection accuracy and good sealing effect

Active Publication Date: 2018-02-02
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is mostly used for geological exploration or the detection of larger targets, and its detection accuracy can only reach centimeter level. For the small cracks in the millimeter level inside the power pipe, one is that the shape and size of the antenna are not suitable for small diameter pipes such as power pipes , cannot fit well with the pipe wall, and cannot be detected in the hole, and the second is that the frequency is too low to meet the accuracy requirements of electric pipe crack detection

Method used

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  • A Pipeline Radar Antenna for Damage Detection of Electric Power Pipes
  • A Pipeline Radar Antenna for Damage Detection of Electric Power Pipes
  • A Pipeline Radar Antenna for Damage Detection of Electric Power Pipes

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Embodiment

[0033] Such as figure 1 As shown, etching is carried out on the printed circuit board substrate 11, leaving part of the metal copper and the circuit board substrate, thus forming the two triangular radiating arms of the radar antenna, the microstrip feeder and the balun soldering contacts. Then weld the two poles of the standard SMA connector to the microstrip feeder as shown in the figure.

[0034] Such as figure 2 shown in figure 1 Solder the TCM4-452X+ type balun produced by Mini-Circuits Company on the balun soldering contacts of the printed circuit board. Connect the first SMA connector 14 of the antenna to the 90-degree right-angle SMA adapter 15 , and then connect it out through the 5mm coaxial cable 7 .

[0035] Such as image 3 As shown, will figure 2 One of the 5mm coaxial cables 7 connected through the second SMA connector 22 is connected to the input end of the LNA-3040 amplifier, and then the output end is connected to the 10mm coaxial cable 8 through the S...

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Abstract

The invention relates to a pipe radar antenna for damage detection of electric power pipes. The antenna is connected with a signal processor and includes: an antenna cylinder: a hollow cylindrical structure, and ports are provided at both ends of the antenna cylinder, each A waterproof baffle is installed at each port; dish antenna: fixed above the inside of the antenna cylinder with waterproof glue and connected to the signal processor; signal amplifier: fixed inside the antenna cylinder with waterproof glue and connected to the dish antenna and signal processor respectively device connection. Compared with the prior art, the invention has the advantages of adapting to pipeline measurement, high detection precision, solving signal attenuation, and good sealing performance.

Description

technical field [0001] The invention relates to the design field of ground penetrating radar, in particular to a pipeline radar antenna used for damage detection of power pipes. Background technique [0002] With the development of the city and the increasing demand for electricity, the requirements for power cables buried underground in the city are also getting higher and higher. In order to protect the power cables, most of the power supply lines in the central urban area of ​​Shanghai use power row Pipe laying, in recent years, urban network reconstruction has been rolled out on a large scale, and pipe laying is widely used because it does not need to repeatedly excavate the road surface and the cost is relatively low. The cost of direct buried piping is low, the construction is relatively easy, and the construction period is short. Under the investment decision-making that focuses on input and output, it is valued by decision-makers and favored by designers. [0003] S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q1/50H01Q1/38H01Q21/00
Inventor 王媚王承宋喆谢雄耀张怡李海叶志豪
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO